EESchema Schematic File Version 4
LIBS:DASPi-cache
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 1 1
Title "8 Ch. 18 Bit Data Aquisition System for Raspberry Pi"
Date "2020-07-01"
Rev "1.0"
Comp "First attempt"
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L Connector_Generic:Conn_02x20_Odd_Even J3
U 1 1 5EF76F11
P 7650 4500
F 0 "J3" H 7700 5617 50  0000 C CNN
F 1 "Raspberry-Pi GPIO" H 7700 5526 50  0000 C CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_2x20_P2.54mm_Vertical" H 7650 4500 50  0001 C CNN
F 3 "~" H 7650 4500 50  0001 C CNN
	1    7650 4500
	1    0    0    -1  
$EndComp
$Comp
L Connector:Screw_Terminal_01x08 J1
U 1 1 5EF8F431
P 900 3850
F 0 "J1" H 1050 3850 50  0000 C CNN
F 1 "Screw_Terminal_01x08" H 900 4300 50  0001 C CNN
F 2 "Connector:RS 173-1628 2.54mm 8 way screw terminal" H 900 3850 50  0001 C CNN
F 3 "~" H 900 3850 50  0001 C CNN
	1    900  3850
	-1   0    0    -1  
$EndComp
$Comp
L Connector:Screw_Terminal_01x08 J2
U 1 1 5EF90B5C
P 900 4650
F 0 "J2" H 1050 4650 50  0000 C CNN
F 1 "Screw_Terminal_01x08" H 818 5076 50  0001 C CNN
F 2 "Connector:RS 173-1628 2.54mm 8 way screw terminal" H 900 4650 50  0001 C CNN
F 3 "~" H 900 4650 50  0001 C CNN
	1    900  4650
	-1   0    0    -1  
$EndComp
$Comp
L Device:R R1
U 1 1 5EF722F1
P 1250 3550
F 0 "R1" V 1200 3750 50  0000 C CNN
F 1 "1k" V 1250 3500 50  0000 C CNN
F 2 "Resistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolder" V 1180 3550 50  0001 C CNN
F 3 "~" H 1250 3550 50  0001 C CNN
	1    1250 3550
	0    1    1    0   
$EndComp
$Comp
L Device:R R2
U 1 1 5EF73095
P 1250 3650
F 0 "R2" V 1200 3850 50  0000 C CNN
F 1 "1k" V 1250 3600 50  0000 C CNN
F 2 "Resistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolder" V 1180 3650 50  0001 C CNN
F 3 "~" H 1250 3650 50  0001 C CNN
	1    1250 3650
	0    1    1    0   
$EndComp
$Comp
L Device:R R3
U 1 1 5EF79885
P 1250 3750
F 0 "R3" V 1200 3950 50  0000 C CNN
F 1 "1k" V 1250 3700 50  0000 C CNN
F 2 "Resistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolder" V 1180 3750 50  0001 C CNN
F 3 "~" H 1250 3750 50  0001 C CNN
	1    1250 3750
	0    1    1    0   
$EndComp
$Comp
L Device:R R4
U 1 1 5EF7988B
P 1250 3850
F 0 "R4" V 1200 4050 50  0000 C CNN
F 1 "1k" V 1250 3800 50  0000 C CNN
F 2 "Resistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolder" V 1180 3850 50  0001 C CNN
F 3 "~" H 1250 3850 50  0001 C CNN
	1    1250 3850
	0    1    1    0   
$EndComp
$Comp
L Device:R R5
U 1 1 5EF81BA7
P 1250 3950
F 0 "R5" V 1200 4150 50  0000 C CNN
F 1 "1k" V 1250 3900 50  0000 C CNN
F 2 "Resistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolder" V 1180 3950 50  0001 C CNN
F 3 "~" H 1250 3950 50  0001 C CNN
	1    1250 3950
	0    1    1    0   
$EndComp
$Comp
L Device:R R6
U 1 1 5EF81BAD
P 1250 4050
F 0 "R6" V 1200 4250 50  0000 C CNN
F 1 "1k" V 1250 4000 50  0000 C CNN
F 2 "Resistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolder" V 1180 4050 50  0001 C CNN
F 3 "~" H 1250 4050 50  0001 C CNN
	1    1250 4050
	0    1    1    0   
$EndComp
$Comp
L Device:R R7
U 1 1 5EF81BB3
P 1250 4150
F 0 "R7" V 1200 4350 50  0000 C CNN
F 1 "1k" V 1250 4100 50  0000 C CNN
F 2 "Resistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolder" V 1180 4150 50  0001 C CNN
F 3 "~" H 1250 4150 50  0001 C CNN
	1    1250 4150
	0    1    1    0   
$EndComp
$Comp
L Device:R R8
U 1 1 5EF81BB9
P 1250 4250
F 0 "R8" V 1200 4450 50  0000 C CNN
F 1 "1k" V 1250 4200 50  0000 C CNN
F 2 "Resistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolder" V 1180 4250 50  0001 C CNN
F 3 "~" H 1250 4250 50  0001 C CNN
	1    1250 4250
	0    1    1    0   
$EndComp
$Comp
L Device:R R9
U 1 1 5EF84509
P 1250 4350
F 0 "R9" V 1200 4550 50  0000 C CNN
F 1 "1k" V 1250 4300 50  0000 C CNN
F 2 "Resistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolder" V 1180 4350 50  0001 C CNN
F 3 "~" H 1250 4350 50  0001 C CNN
	1    1250 4350
	0    1    1    0   
$EndComp
$Comp
L Device:R R10
U 1 1 5EF8450F
P 1250 4450
F 0 "R10" V 1200 4650 50  0000 C CNN
F 1 "1k" V 1250 4400 50  0000 C CNN
F 2 "Resistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolder" V 1180 4450 50  0001 C CNN
F 3 "~" H 1250 4450 50  0001 C CNN
	1    1250 4450
	0    1    1    0   
$EndComp
$Comp
L Device:R R11
U 1 1 5EF84515
P 1250 4550
F 0 "R11" V 1200 4750 50  0000 C CNN
F 1 "1k" V 1250 4500 50  0000 C CNN
F 2 "Resistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolder" V 1180 4550 50  0001 C CNN
F 3 "~" H 1250 4550 50  0001 C CNN
	1    1250 4550
	0    1    1    0   
$EndComp
$Comp
L Device:R R12
U 1 1 5EF8451B
P 1250 4650
F 0 "R12" V 1200 4850 50  0000 C CNN
F 1 "1k" V 1250 4600 50  0000 C CNN
F 2 "Resistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolder" V 1180 4650 50  0001 C CNN
F 3 "~" H 1250 4650 50  0001 C CNN
	1    1250 4650
	0    1    1    0   
$EndComp
$Comp
L Device:R R13
U 1 1 5EF84521
P 1250 4750
F 0 "R13" V 1200 4950 50  0000 C CNN
F 1 "1k" V 1250 4700 50  0000 C CNN
F 2 "Resistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolder" V 1180 4750 50  0001 C CNN
F 3 "~" H 1250 4750 50  0001 C CNN
	1    1250 4750
	0    1    1    0   
$EndComp
$Comp
L Device:R R14
U 1 1 5EF84527
P 1250 4850
F 0 "R14" V 1200 5050 50  0000 C CNN
F 1 "1k" V 1250 4800 50  0000 C CNN
F 2 "Resistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolder" V 1180 4850 50  0001 C CNN
F 3 "~" H 1250 4850 50  0001 C CNN
	1    1250 4850
	0    1    1    0   
$EndComp
$Comp
L Device:R R15
U 1 1 5EF8452D
P 1250 4950
F 0 "R15" V 1200 5150 50  0000 C CNN
F 1 "1k" V 1250 4900 50  0000 C CNN
F 2 "Resistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolder" V 1180 4950 50  0001 C CNN
F 3 "~" H 1250 4950 50  0001 C CNN
	1    1250 4950
	0    1    1    0   
$EndComp
$Comp
L Device:R R16
U 1 1 5EF84533
P 1250 5050
F 0 "R16" V 1200 5250 50  0000 C CNN
F 1 "1k" V 1250 5000 50  0000 C CNN
F 2 "Resistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolder" V 1180 5050 50  0001 C CNN
F 3 "~" H 1250 5050 50  0001 C CNN
	1    1250 5050
	0    1    1    0   
$EndComp
$Comp
L Device:C_Small C1
U 1 1 5EF8F88A
P 1650 3550
F 0 "C1" H 1742 3596 50  0000 L CNN
F 1 "10pF" H 1742 3505 50  0000 L CNN
F 2 "Capacitor_SMD:C_1206_3216Metric_Pad1.42x1.75mm_HandSolder" H 1650 3550 50  0001 C CNN
F 3 "~" H 1650 3550 50  0001 C CNN
	1    1650 3550
	1    0    0    -1  
$EndComp
Wire Wire Line
	1400 3550 1550 3550
Wire Wire Line
	1400 3650 1650 3650
$Comp
L Device:C_Small C3
U 1 1 5EF98D17
P 1950 3750
F 0 "C3" H 2042 3796 50  0000 L CNN
F 1 "10pF" H 2042 3705 50  0000 L CNN
F 2 "Capacitor_SMD:C_1206_3216Metric_Pad1.42x1.75mm_HandSolder" H 1950 3750 50  0001 C CNN
F 3 "~" H 1950 3750 50  0001 C CNN
	1    1950 3750
	1    0    0    -1  
$EndComp
Wire Wire Line
	1400 3750 1850 3750
Wire Wire Line
	1400 3850 1950 3850
$Comp
L Device:C_Small C5
U 1 1 5EF9B87D
P 2200 3950
F 0 "C5" H 2292 3996 50  0000 L CNN
F 1 "10pF" H 2292 3905 50  0000 L CNN
F 2 "Capacitor_SMD:C_1206_3216Metric_Pad1.42x1.75mm_HandSolder" H 2200 3950 50  0001 C CNN
F 3 "~" H 2200 3950 50  0001 C CNN
	1    2200 3950
	1    0    0    -1  
$EndComp
Wire Wire Line
	1400 3950 2100 3950
Wire Wire Line
	2200 4050 1400 4050
$Comp
L Device:C_Small C7
U 1 1 5EF9DE82
P 2500 4150
F 0 "C7" H 2592 4196 50  0000 L CNN
F 1 "10pF" H 2592 4105 50  0000 L CNN
F 2 "Capacitor_SMD:C_1206_3216Metric_Pad1.42x1.75mm_HandSolder" H 2500 4150 50  0001 C CNN
F 3 "~" H 2500 4150 50  0001 C CNN
	1    2500 4150
	1    0    0    -1  
$EndComp
Wire Wire Line
	1400 4150 2400 4150
$Comp
L Device:C_Small C8
U 1 1 5EF84156
P 2500 4450
F 0 "C8" H 2592 4496 50  0000 L CNN
F 1 "10pF" H 2592 4405 50  0000 L CNN
F 2 "Capacitor_SMD:C_1206_3216Metric_Pad1.42x1.75mm_HandSolder" H 2500 4450 50  0001 C CNN
F 3 "~" H 2500 4450 50  0001 C CNN
	1    2500 4450
	1    0    0    -1  
$EndComp
$Comp
L Device:C_Small C6
U 1 1 5EF84D47
P 2200 4650
F 0 "C6" H 2292 4696 50  0000 L CNN
F 1 "10pF" H 2292 4605 50  0000 L CNN
F 2 "Capacitor_SMD:C_1206_3216Metric_Pad1.42x1.75mm_HandSolder" H 2200 4650 50  0001 C CNN
F 3 "~" H 2200 4650 50  0001 C CNN
	1    2200 4650
	1    0    0    -1  
$EndComp
$Comp
L Device:C_Small C4
U 1 1 5EF85299
P 1950 4850
F 0 "C4" H 2042 4896 50  0000 L CNN
F 1 "10pF" H 2042 4805 50  0000 L CNN
F 2 "Capacitor_SMD:C_1206_3216Metric_Pad1.42x1.75mm_HandSolder" H 1950 4850 50  0001 C CNN
F 3 "~" H 1950 4850 50  0001 C CNN
	1    1950 4850
	1    0    0    -1  
$EndComp
$Comp
L Device:C_Small C2
U 1 1 5EF85839
P 1650 5050
F 0 "C2" H 1742 5096 50  0000 L CNN
F 1 "10pF" H 1742 5005 50  0000 L CNN
F 2 "Capacitor_SMD:C_1206_3216Metric_Pad1.42x1.75mm_HandSolder" H 1650 5050 50  0001 C CNN
F 3 "~" H 1650 5050 50  0001 C CNN
	1    1650 5050
	1    0    0    -1  
$EndComp
Wire Wire Line
	3550 4350 2500 4350
Connection ~ 2500 4350
Wire Wire Line
	2500 4350 1400 4350
Wire Wire Line
	3550 4450 2800 4450
Wire Wire Line
	2800 4450 2800 4550
Wire Wire Line
	2800 4550 2500 4550
Wire Wire Line
	2500 4550 2400 4550
Wire Wire Line
	2400 4550 2400 4450
Connection ~ 2500 4550
Wire Wire Line
	2400 4450 1400 4450
Wire Wire Line
	3550 4550 2900 4550
Wire Wire Line
	2900 4550 2900 4650
Wire Wire Line
	2900 4650 2300 4650
Wire Wire Line
	2300 4650 2300 4550
Wire Wire Line
	3550 4650 3000 4650
Wire Wire Line
	3000 4650 3000 4750
Wire Wire Line
	3000 4750 2200 4750
Wire Wire Line
	2100 4750 2100 4650
Connection ~ 2200 4550
Wire Wire Line
	2200 4550 2300 4550
Connection ~ 2200 4750
Wire Wire Line
	2100 4750 2200 4750
Wire Wire Line
	1400 4550 2200 4550
Wire Wire Line
	2100 4650 1400 4650
Wire Wire Line
	1400 4750 1950 4750
Wire Wire Line
	3550 4750 3100 4750
Wire Wire Line
	3100 4750 3100 4850
Wire Wire Line
	1400 4850 1850 4850
Wire Wire Line
	1850 4850 1850 4950
Wire Wire Line
	3200 4850 3550 4850
Wire Wire Line
	3300 4950 3300 5050
Wire Wire Line
	3300 5050 1750 5050
Wire Wire Line
	1750 5050 1750 4950
Wire Wire Line
	1750 4950 1650 4950
Wire Wire Line
	3300 4950 3550 4950
Connection ~ 1650 4950
Wire Wire Line
	1650 4950 1400 4950
Wire Wire Line
	1550 5050 1550 5150
Wire Wire Line
	1550 5150 1650 5150
Wire Wire Line
	1650 5150 3400 5150
Wire Wire Line
	3400 5150 3400 5050
Wire Wire Line
	3400 5050 3550 5050
Connection ~ 1650 5150
Wire Wire Line
	1950 4750 2050 4750
Wire Wire Line
	2050 4750 2050 4850
Wire Wire Line
	2050 4850 3100 4850
Connection ~ 1950 4750
Wire Wire Line
	1850 4950 1950 4950
Wire Wire Line
	1950 4950 3200 4950
Connection ~ 1950 4950
Wire Wire Line
	3200 4950 3200 4850
Wire Wire Line
	1400 4250 2500 4250
Connection ~ 2500 4250
Wire Wire Line
	2500 4250 3550 4250
Wire Wire Line
	2400 4150 2400 4050
Wire Wire Line
	2400 4050 2500 4050
Wire Wire Line
	2500 4050 2800 4050
Wire Wire Line
	2800 4050 2800 4150
Wire Wire Line
	2800 4150 3550 4150
Connection ~ 2500 4050
Wire Wire Line
	2200 4050 2300 4050
Wire Wire Line
	2300 4050 2300 3950
Wire Wire Line
	2300 3950 2900 3950
Wire Wire Line
	2900 3950 2900 4050
Wire Wire Line
	2900 4050 3550 4050
Connection ~ 2200 4050
Wire Wire Line
	2100 3950 2100 3850
Wire Wire Line
	2100 3850 2200 3850
Wire Wire Line
	3000 3850 3000 3950
Wire Wire Line
	3000 3950 3550 3950
Connection ~ 2200 3850
Wire Wire Line
	2200 3850 3000 3850
Wire Wire Line
	1850 3750 1850 3650
Wire Wire Line
	1850 3650 1950 3650
Wire Wire Line
	3200 3650 3200 3750
Wire Wire Line
	3200 3750 3550 3750
Connection ~ 1950 3650
Connection ~ 1950 3850
Wire Wire Line
	2050 3850 2050 3750
Wire Wire Line
	2050 3750 3100 3750
Wire Wire Line
	3100 3750 3100 3850
Wire Wire Line
	3100 3850 3550 3850
Wire Wire Line
	1950 3650 3200 3650
Wire Wire Line
	1950 3850 2050 3850
Wire Wire Line
	1750 3650 1750 3550
Wire Wire Line
	1750 3550 3300 3550
Wire Wire Line
	3300 3550 3300 3650
Wire Wire Line
	3300 3650 3550 3650
Wire Wire Line
	1550 3550 1550 3450
Wire Wire Line
	1550 3450 1650 3450
Wire Wire Line
	3400 3450 3400 3550
Wire Wire Line
	3400 3550 3550 3550
Connection ~ 1650 3450
Connection ~ 1650 3650
Wire Wire Line
	1650 3450 3400 3450
Wire Wire Line
	1650 3650 1750 3650
Wire Wire Line
	7950 3700 8100 3700
Wire Wire Line
	8100 3700 8100 3600
Wire Wire Line
	8100 3600 7950 3600
Wire Wire Line
	8100 3600 8100 3500
Connection ~ 8100 3600
$Comp
L power:+5V #PWR017
U 1 1 5F09FCC4
P 8100 3500
F 0 "#PWR017" H 8100 3350 50  0001 C CNN
F 1 "+5V" H 8115 3673 50  0000 C CNN
F 2 "" H 8100 3500 50  0001 C CNN
F 3 "" H 8100 3500 50  0001 C CNN
	1    8100 3500
	1    0    0    -1  
$EndComp
Wire Wire Line
	7450 4400 7350 4400
Wire Wire Line
	7350 4400 7350 3600
Wire Wire Line
	7350 3600 7450 3600
Wire Wire Line
	7350 3600 7350 3200
Connection ~ 7350 3600
$Comp
L power:+3V3 #PWR015
U 1 1 5F0A588A
P 7350 3200
F 0 "#PWR015" H 7350 3050 50  0001 C CNN
F 1 "+3V3" H 7365 3373 50  0000 C CNN
F 2 "" H 7350 3200 50  0001 C CNN
F 3 "" H 7350 3200 50  0001 C CNN
	1    7350 3200
	1    0    0    -1  
$EndComp
Wire Wire Line
	7450 5500 7250 5500
Wire Wire Line
	7250 5500 7250 4800
Wire Wire Line
	7250 4000 7450 4000
Wire Wire Line
	7450 4800 7250 4800
Connection ~ 7250 4800
Wire Wire Line
	7250 4800 7250 4000
Wire Wire Line
	7950 3800 8100 3800
Wire Wire Line
	8100 4200 7950 4200
Wire Wire Line
	8100 4500 7950 4500
Connection ~ 8100 4200
Wire Wire Line
	8100 5000 7950 5000
Connection ~ 8100 4500
Wire Wire Line
	8100 5200 7950 5200
Connection ~ 8100 5000
Wire Wire Line
	8100 5700 7250 5700
Wire Wire Line
	7250 5700 7250 5500
Connection ~ 8100 5200
Connection ~ 7250 5500
$Comp
L power:GND #PWR012
U 1 1 5F0C2586
P 7250 5700
F 0 "#PWR012" H 7250 5450 50  0001 C CNN
F 1 "GND" H 7255 5527 50  0000 C CNN
F 2 "" H 7250 5700 50  0001 C CNN
F 3 "" H 7250 5700 50  0001 C CNN
	1    7250 5700
	1    0    0    -1  
$EndComp
Connection ~ 7250 5700
$Comp
L Device:C_Small C14
U 1 1 5F0C42CB
P 4300 2700
F 0 "C14" H 4300 2800 50  0000 L CNN
F 1 "1uF" H 4250 3200 50  0001 L CNN
F 2 "Capacitor_SMD:C_1206_3216Metric_Pad1.42x1.75mm_HandSolder" H 4300 2700 50  0001 C CNN
F 3 "~" H 4300 2700 50  0001 C CNN
	1    4300 2700
	1    0    0    -1  
$EndComp
Wire Wire Line
	4300 3000 4300 2800
Wire Wire Line
	4200 2350 4300 2350
Wire Wire Line
	4300 2350 4300 2600
$Comp
L Device:C_Small C11
U 1 1 5F0D5FFB
P 4000 2450
F 0 "C11" H 3950 2600 50  0000 L CNN
F 1 "100nF" H 4092 2405 50  0001 L CNN
F 2 "Capacitor_SMD:C_1206_3216Metric_Pad1.42x1.75mm_HandSolder" H 4000 2450 50  0001 C CNN
F 3 "~" H 4000 2450 50  0001 C CNN
	1    4000 2450
	1    0    0    -1  
$EndComp
$Comp
L Device:C_Small C10
U 1 1 5F0D65ED
P 3900 2700
F 0 "C10" H 3900 2800 50  0000 L CNN
F 1 "100nF" H 3992 2655 50  0001 L CNN
F 2 "Capacitor_SMD:C_1206_3216Metric_Pad1.42x1.75mm_HandSolder" H 3900 2700 50  0001 C CNN
F 3 "~" H 3900 2700 50  0001 C CNN
	1    3900 2700
	1    0    0    -1  
$EndComp
$Comp
L Device:C_Small C9
U 1 1 5F0D6BD1
P 3800 2450
F 0 "C9" H 3750 2600 50  0000 L CNN
F 1 "100nF" H 3650 2500 50  0001 L CNN
F 2 "Capacitor_SMD:C_1206_3216Metric_Pad1.42x1.75mm_HandSolder" H 3800 2450 50  0001 C CNN
F 3 "~" H 3800 2450 50  0001 C CNN
	1    3800 2450
	1    0    0    -1  
$EndComp
Wire Wire Line
	4200 2350 4100 2350
Connection ~ 4000 2350
Wire Wire Line
	4000 2350 3900 2350
Wire Wire Line
	4100 2600 4100 2350
Connection ~ 4100 2350
Wire Wire Line
	4100 2350 4000 2350
Wire Wire Line
	3900 2600 3900 2350
Connection ~ 3900 2350
Wire Wire Line
	3900 2350 3800 2350
$Comp
L Device:CP_Small C15
U 1 1 5F0F7236
P 4500 2450
F 0 "C15" H 4550 2300 50  0000 R CNN
F 1 "10uF" H 4550 2100 50  0000 R CNN
F 2 "Capacitor_Tantalum_SMD:CP_EIA-3528-21_Kemet-B" H 4500 2450 50  0001 C CNN
F 3 "~" H 4500 2450 50  0001 C CNN
	1    4500 2450
	-1   0    0    1   
$EndComp
Wire Wire Line
	4400 3000 4500 3000
Wire Wire Line
	4500 2550 4500 3000
Wire Wire Line
	4300 2350 4500 2350
Connection ~ 4300 2350
$Comp
L Device:CP_Small C16
U 1 1 5F105084
P 4600 2700
F 0 "C16" H 4600 2600 50  0000 R CNN
F 1 "10uF" H 4650 2200 50  0001 R CNN
F 2 "Capacitor_Tantalum_SMD:CP_EIA-3528-21_Kemet-B" H 4600 2700 50  0001 C CNN
F 3 "~" H 4600 2700 50  0001 C CNN
	1    4600 2700
	-1   0    0    1   
$EndComp
Wire Wire Line
	4500 2350 4600 2350
Wire Wire Line
	4600 2350 4600 2600
Connection ~ 4500 2350
Wire Wire Line
	4600 3000 4600 2950
Wire Wire Line
	3800 2350 3600 2350
Wire Wire Line
	3600 2350 3600 2400
Connection ~ 3800 2350
$Comp
L power:GND #PWR02
U 1 1 5F116198
P 3600 2400
F 0 "#PWR02" H 3600 2150 50  0001 C CNN
F 1 "GND" H 3605 2227 50  0000 C CNN
F 2 "" H 3600 2400 50  0001 C CNN
F 3 "" H 3600 2400 50  0001 C CNN
	1    3600 2400
	1    0    0    -1  
$EndComp
$Comp
L power:+3V3 #PWR04
U 1 1 5F1169AF
P 4900 2600
F 0 "#PWR04" H 4900 2450 50  0001 C CNN
F 1 "+3V3" H 4915 2773 50  0000 C CNN
F 2 "" H 4900 2600 50  0001 C CNN
F 3 "" H 4900 2600 50  0001 C CNN
	1    4900 2600
	1    0    0    -1  
$EndComp
Wire Wire Line
	4900 3000 4900 2600
$Comp
L Device:C_Small C17
U 1 1 5F11C11E
P 5000 2700
F 0 "C17" H 5092 2746 50  0000 L CNN
F 1 "100nF" H 5092 2655 50  0000 L CNN
F 2 "Capacitor_SMD:C_1206_3216Metric_Pad1.42x1.75mm_HandSolder" H 5000 2700 50  0001 C CNN
F 3 "~" H 5000 2700 50  0001 C CNN
	1    5000 2700
	1    0    0    -1  
$EndComp
Wire Wire Line
	4900 2600 5000 2600
Connection ~ 4900 2600
$Comp
L power:GND #PWR05
U 1 1 5F12B5C4
P 5000 2800
F 0 "#PWR05" H 5000 2550 50  0001 C CNN
F 1 "GND" H 5005 2627 50  0000 C CNN
F 2 "" H 5000 2800 50  0001 C CNN
F 3 "" H 5000 2800 50  0001 C CNN
	1    5000 2800
	1    0    0    -1  
$EndComp
Connection ~ 4200 2350
Wire Wire Line
	4100 2800 4100 2950
Wire Wire Line
	4000 2550 4000 2950
Wire Wire Line
	3900 2800 3900 2950
Wire Wire Line
	3800 2550 3800 2950
Wire Wire Line
	3350 2950 3350 2850
Connection ~ 4100 2950
Wire Wire Line
	4100 2950 4100 3000
Wire Wire Line
	4100 2950 4000 2950
Connection ~ 4000 2950
Wire Wire Line
	4000 2950 4000 3000
Wire Wire Line
	4000 2950 3900 2950
Connection ~ 3900 2950
Wire Wire Line
	3900 2950 3900 3000
Wire Wire Line
	3900 2950 3800 2950
Connection ~ 3800 2950
Wire Wire Line
	3800 2950 3800 3000
Wire Wire Line
	3800 2950 3350 2950
$Comp
L power:+5VA #PWR01
U 1 1 5F165C2E
P 3350 2850
F 0 "#PWR01" H 3350 2700 50  0001 C CNN
F 1 "+5VA" H 3365 3023 50  0000 C CNN
F 2 "" H 3350 2850 50  0001 C CNN
F 3 "" H 3350 2850 50  0001 C CNN
	1    3350 2850
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR03
U 1 1 5F167C3D
P 3800 6350
F 0 "#PWR03" H 3800 6100 50  0001 C CNN
F 1 "GND" H 3805 6177 50  0000 C CNN
F 2 "" H 3800 6350 50  0001 C CNN
F 3 "" H 3800 6350 50  0001 C CNN
	1    3800 6350
	1    0    0    -1  
$EndComp
Connection ~ 3800 6350
Wire Wire Line
	3800 6350 3900 6350
Connection ~ 3900 6350
Wire Wire Line
	3900 6350 4000 6350
Connection ~ 4000 6350
Wire Wire Line
	4000 6350 4100 6350
Connection ~ 4100 6350
Wire Wire Line
	4100 6350 4200 6350
Connection ~ 4200 6350
Wire Wire Line
	4200 6350 4300 6350
Connection ~ 4300 6350
Wire Wire Line
	4300 6350 4400 6350
Connection ~ 4400 6350
Wire Wire Line
	4400 6350 4500 6350
Entry Wire Line
	5750 3350 5850 3450
Wire Wire Line
	5400 3350 5750 3350
Text Label 5600 3350 0    50   ~ 0
DB0
Entry Wire Line
	5750 3450 5850 3550
Entry Wire Line
	5750 3550 5850 3650
Entry Wire Line
	5750 3650 5850 3750
Entry Wire Line
	5750 3750 5850 3850
Entry Wire Line
	5750 3850 5850 3950
Entry Wire Line
	5750 3950 5850 4050
Entry Wire Line
	5750 4050 5850 4150
Wire Wire Line
	5750 3450 5400 3450
Wire Wire Line
	5750 3550 5400 3550
Wire Wire Line
	5750 3650 5400 3650
Wire Wire Line
	5750 3750 5400 3750
Wire Wire Line
	5750 3850 5400 3850
Wire Wire Line
	5750 3950 5400 3950
Wire Wire Line
	5750 4050 5400 4050
Text Label 5600 3450 0    50   ~ 0
DB1
Text Label 5600 3550 0    50   ~ 0
DB2
Text Label 5600 3650 0    50   ~ 0
DB3
Text Label 5600 3750 0    50   ~ 0
DB4
Text Label 5600 3850 0    50   ~ 0
DB5
Text Label 5600 3950 0    50   ~ 0
DB6
Text Label 5600 4050 0    50   ~ 0
DB7
Entry Wire Line
	5750 4150 5850 4250
Entry Wire Line
	5750 4250 5850 4350
Entry Wire Line
	5750 4350 5850 4450
Entry Wire Line
	5750 4450 5850 4550
Entry Wire Line
	5750 4550 5850 4650
Entry Wire Line
	5750 4650 5850 4750
Entry Wire Line
	5750 4750 5850 4850
Entry Wire Line
	5750 4850 5850 4950
Entry Wire Line
	5750 4950 5850 5050
Entry Wire Line
	5750 5050 5850 5150
Entry Wire Line
	5750 5150 5850 5250
Entry Wire Line
	5750 5250 5850 5350
Entry Wire Line
	5750 5350 5850 5450
Entry Wire Line
	5750 5550 5850 5650
Entry Wire Line
	5750 5750 5850 5850
Entry Wire Line
	5750 5850 5850 5950
Wire Wire Line
	5750 4150 5400 4150
Wire Wire Line
	5400 4250 5750 4250
Wire Wire Line
	5750 4350 5400 4350
Wire Wire Line
	5750 4450 5400 4450
Wire Wire Line
	5750 4550 5400 4550
Wire Wire Line
	5750 4650 5400 4650
Wire Wire Line
	5750 4750 5400 4750
Wire Wire Line
	5750 4850 5400 4850
Wire Wire Line
	5750 4950 5400 4950
Wire Wire Line
	5750 5050 5400 5050
Wire Wire Line
	5750 5150 5400 5150
Wire Wire Line
	5750 5250 5400 5250
Wire Wire Line
	5750 5350 5550 5350
Wire Wire Line
	5750 5550 5550 5550
Wire Wire Line
	5750 5750 5400 5750
Wire Wire Line
	5400 5850 5750 5850
Text Label 5600 4150 0    50   ~ 0
DB8
Text Label 5600 4250 0    50   ~ 0
DB9
Text Label 5600 4350 0    50   ~ 0
DB10
Text Label 5600 4450 0    50   ~ 0
DB11
Text Label 5600 4550 0    50   ~ 0
DB12
Text Label 5600 4650 0    50   ~ 0
DB13
Text Label 5600 4750 0    50   ~ 0
DB14
Text Label 5600 4850 0    50   ~ 0
DB15
Text Label 5600 4950 0    50   ~ 0
OS0
Text Label 5600 5050 0    50   ~ 0
OS1
Text Label 5600 5150 0    50   ~ 0
OS2
Text Label 5500 5250 0    50   ~ 0
Range
Text Label 5400 5350 0    50   ~ 0
ConvStart
Text Label 5400 5550 0    50   ~ 0
!RD-!CS
Text Label 5550 5750 0    50   ~ 0
Busy
Text Label 5400 5850 0    50   ~ 0
FrstData
Entry Wire Line
	5750 5950 5850 6050
Wire Wire Line
	5750 5950 5400 5950
Text Label 5500 5950 0    50   ~ 0
Reset
Wire Wire Line
	4500 6350 4600 6350
Connection ~ 4500 6350
Connection ~ 4600 6350
$Comp
L power:+3V3 #PWR06
U 1 1 5F2E6FCB
P 5350 6450
F 0 "#PWR06" H 5350 6300 50  0001 C CNN
F 1 "+3V3" H 5365 6623 50  0000 C CNN
F 2 "" H 5350 6450 50  0001 C CNN
F 3 "" H 5350 6450 50  0001 C CNN
	1    5350 6450
	1    0    0    -1  
$EndComp
Wire Wire Line
	5000 6450 5000 6250
Wire Wire Line
	5000 6250 4700 6250
Wire Wire Line
	4700 6250 4700 6150
Wire Wire Line
	3800 6150 3800 6350
Wire Wire Line
	3900 6150 3900 6350
Wire Wire Line
	4000 6150 4000 6350
Wire Wire Line
	4100 6150 4100 6350
Wire Wire Line
	4200 6150 4200 6350
Wire Wire Line
	4300 6150 4300 6350
Wire Wire Line
	4400 6150 4400 6350
Wire Wire Line
	4500 6150 4500 6350
Wire Wire Line
	4600 6150 4600 6350
$Comp
L Device:R R17
U 1 1 5F366DE8
P 5200 6450
F 0 "R17" V 4993 6450 50  0000 C CNN
F 1 "10k" V 5084 6450 50  0000 C CNN
F 2 "Resistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolder" V 5130 6450 50  0001 C CNN
F 3 "~" H 5200 6450 50  0001 C CNN
	1    5200 6450
	0    1    1    0   
$EndComp
Wire Wire Line
	5050 6450 5000 6450
Wire Wire Line
	4800 2950 4800 2250
$Comp
L Reference_Voltage:ADR421ARMZ U2
U 1 1 5EFA1EDD
P 6350 1300
F 0 "U2" H 6106 1346 50  0000 R CNN
F 1 "ADR421ARMZ" H 6106 1255 50  0000 R CNN
F 2 "Package_SO:MSOP-8_3x3mm_P0.65mm" H 6350 800 50  0001 C CNN
F 3 "https://www.analog.com/media/en/technical-documentation/data-sheets/adr420_421_423_425.pdf" H 6350 1450 50  0001 C CNN
	1    6350 1300
	-1   0    0    -1  
$EndComp
$Comp
L power:+5VA #PWR07
U 1 1 5EFAE441
P 6450 1000
F 0 "#PWR07" H 6450 850 50  0001 C CNN
F 1 "+5VA" H 6465 1173 50  0000 C CNN
F 2 "" H 6450 1000 50  0001 C CNN
F 3 "" H 6450 1000 50  0001 C CNN
	1    6450 1000
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR08
U 1 1 5EFAE98E
P 6450 1600
F 0 "#PWR08" H 6450 1350 50  0001 C CNN
F 1 "GND" H 6455 1427 50  0000 C CNN
F 2 "" H 6450 1600 50  0001 C CNN
F 3 "" H 6450 1600 50  0001 C CNN
	1    6450 1600
	1    0    0    -1  
$EndComp
$Comp
L Reference_Voltage:ADR421ARMZ U2(Alt)1
U 1 1 5EFAEE6B
P 6350 2350
F 0 "U2(Alt)1" H 6106 2396 50  0000 R CNN
F 1 "ADR421BRZ" H 6106 2305 50  0000 R CNN
F 2 "Package_SO:SOIC-8_3.9x4.9mm_P1.27mm" H 6350 1850 50  0001 C CNN
F 3 "https://www.analog.com/media/en/technical-documentation/data-sheets/adr420_421_423_425.pdf" H 6350 2500 50  0001 C CNN
	1    6350 2350
	-1   0    0    -1  
$EndComp
$Comp
L power:GND #PWR010
U 1 1 5EFB05FD
P 6450 2650
F 0 "#PWR010" H 6450 2400 50  0001 C CNN
F 1 "GND" H 6455 2477 50  0000 C CNN
F 2 "" H 6450 2650 50  0001 C CNN
F 3 "" H 6450 2650 50  0001 C CNN
	1    6450 2650
	1    0    0    -1  
$EndComp
$Comp
L power:+5VA #PWR09
U 1 1 5EFB0B6D
P 6450 2050
F 0 "#PWR09" H 6450 1900 50  0001 C CNN
F 1 "+5VA" H 6465 2223 50  0000 C CNN
F 2 "" H 6450 2050 50  0001 C CNN
F 3 "" H 6450 2050 50  0001 C CNN
	1    6450 2050
	1    0    0    -1  
$EndComp
Wire Wire Line
	5600 2250 6050 2250
Wire Wire Line
	5600 1200 6050 1200
Text Notes 5450 2750 0    63   ~ 0
Alternate package \nvoltage reference
Wire Wire Line
	5400 5650 5550 5650
Wire Wire Line
	5550 5650 5550 5550
Connection ~ 5550 5550
Wire Wire Line
	5550 5550 5400 5550
Entry Bus Bus
	6650 6250 6750 6150
Entry Wire Line
	6750 4200 6850 4100
Wire Wire Line
	6850 4100 7450 4100
Entry Wire Line
	6750 4300 6850 4200
Entry Wire Line
	6750 4400 6850 4300
Wire Wire Line
	6850 4200 7450 4200
Wire Wire Line
	6850 4300 7450 4300
Entry Wire Line
	8350 3900 8450 4000
Entry Wire Line
	8350 4000 8450 4100
Entry Wire Line
	8350 4100 8450 4200
Wire Wire Line
	8350 4000 8100 4000
Entry Wire Line
	8350 4300 8450 4400
Entry Wire Line
	8350 4400 8450 4500
Wire Wire Line
	8350 4300 8100 4300
Entry Wire Line
	6750 4600 6850 4500
Entry Wire Line
	6750 4700 6850 4600
Entry Wire Line
	6750 4800 6850 4700
Wire Wire Line
	7450 4500 6850 4500
Wire Wire Line
	7450 4600 6850 4600
Wire Wire Line
	7450 4700 6850 4700
Entry Wire Line
	6750 5100 6850 5000
Entry Wire Line
	6750 5200 6850 5100
Entry Wire Line
	6750 5300 6850 5200
Entry Wire Line
	6750 5400 6850 5300
Entry Wire Line
	6750 5500 6850 5400
Wire Wire Line
	6850 5000 7450 5000
Wire Wire Line
	6850 5100 7450 5100
Wire Wire Line
	6850 5200 7450 5200
Wire Wire Line
	6850 5300 7450 5300
Wire Wire Line
	6850 5400 7450 5400
Wire Wire Line
	5400 5450 5550 5450
Wire Wire Line
	5550 5450 5550 5350
Connection ~ 5550 5350
Wire Wire Line
	5550 5350 5400 5350
Entry Wire Line
	6750 4000 6850 3900
Entry Wire Line
	6750 3900 6850 3800
Entry Wire Line
	6750 3800 6850 3700
Wire Wire Line
	7450 3700 6850 3700
Wire Wire Line
	7450 3800 6850 3800
Wire Wire Line
	7450 3900 6850 3900
Entry Wire Line
	8350 5500 8450 5600
Entry Wire Line
	8350 5400 8450 5500
Entry Wire Line
	8350 5300 8450 5400
Entry Wire Line
	8350 5100 8450 5200
Wire Wire Line
	7950 5100 8100 5100
Wire Wire Line
	8350 5300 8100 5300
Entry Wire Line
	8350 4700 8450 4800
Entry Wire Line
	8350 4600 8450 4700
Wire Wire Line
	8350 4600 8100 4600
Text Label 6900 3700 0    50   ~ 0
DB15
Text Label 6900 3800 0    50   ~ 0
DB14
Text Label 6900 3900 0    50   ~ 0
DB13
Text Label 8150 3900 0    50   ~ 0
DB12
Text Label 8150 4000 0    50   ~ 0
DB11
Text Label 6900 4100 0    50   ~ 0
DB10
Text Label 8150 4100 0    50   ~ 0
DB9
Text Label 6900 4200 0    50   ~ 0
DB8
Text Label 6900 4300 0    50   ~ 0
DB7
Text Label 8150 4300 0    50   ~ 0
DB6
Text Label 8150 4400 0    50   ~ 0
DB5
Text Label 6900 4500 0    50   ~ 0
DB4
Text Label 8150 4600 0    50   ~ 0
DB2
Text Label 6900 4600 0    50   ~ 0
DB3
Text Label 8150 4700 0    50   ~ 0
DB0
Text Label 6900 4700 0    50   ~ 0
DB1
Text Label 6900 5000 0    50   ~ 0
FrstData
Text Label 6900 5100 0    50   ~ 0
Busy
Text Label 8150 5100 0    50   ~ 0
!RD-!CS
Text Label 6900 5200 0    50   ~ 0
Reset
Text Label 6900 5300 0    50   ~ 0
Range
Text Label 8150 5300 0    50   ~ 0
ConvStart
Text Label 6900 5400 0    50   ~ 0
OS1
Text Label 8150 5400 0    50   ~ 0
OS2
Text Label 8150 5500 0    50   ~ 0
OS0
$Comp
L Device:L L1
U 1 1 5F248DFE
P 7650 2250
F 0 "L1" V 7840 2250 50  0000 C CNN
F 1 "L" V 7749 2250 50  0000 C CNN
F 2 "Inductor_SMD:L_1206_3216Metric_Pad1.42x1.75mm_HandSolder" H 7650 2250 50  0001 C CNN
F 3 "~" H 7650 2250 50  0001 C CNN
	1    7650 2250
	0    -1   -1   0   
$EndComp
$Comp
L Device:C_Small C22
U 1 1 5F24A514
P 7900 2350
F 0 "C22" H 7992 2396 50  0000 L CNN
F 1 "100nF" H 7992 2305 50  0000 L CNN
F 2 "Capacitor_SMD:C_1206_3216Metric_Pad1.42x1.75mm_HandSolder" H 7900 2350 50  0001 C CNN
F 3 "~" H 7900 2350 50  0001 C CNN
	1    7900 2350
	1    0    0    -1  
$EndComp
$Comp
L Device:C_Small C21
U 1 1 5F24B307
P 7350 2350
F 0 "C21" H 7442 2396 50  0000 L CNN
F 1 "100nF" H 7442 2305 50  0000 L CNN
F 2 "Capacitor_SMD:C_1206_3216Metric_Pad1.42x1.75mm_HandSolder" H 7350 2350 50  0001 C CNN
F 3 "~" H 7350 2350 50  0001 C CNN
	1    7350 2350
	1    0    0    -1  
$EndComp
Wire Wire Line
	7900 2250 7800 2250
Wire Wire Line
	7500 2250 7350 2250
$Comp
L power:GND #PWR014
U 1 1 5F2683AA
P 7350 2450
F 0 "#PWR014" H 7350 2200 50  0001 C CNN
F 1 "GND" H 7355 2277 50  0000 C CNN
F 2 "" H 7350 2450 50  0001 C CNN
F 3 "" H 7350 2450 50  0001 C CNN
	1    7350 2450
	1    0    0    -1  
$EndComp
$Comp
L power:+5V #PWR016
U 1 1 5F268835
P 7900 2250
F 0 "#PWR016" H 7900 2100 50  0001 C CNN
F 1 "+5V" H 7915 2423 50  0000 C CNN
F 2 "" H 7900 2250 50  0001 C CNN
F 3 "" H 7900 2250 50  0001 C CNN
	1    7900 2250
	1    0    0    -1  
$EndComp
Connection ~ 7900 2250
$Comp
L power:+5VA #PWR013
U 1 1 5F268C1C
P 7350 2250
F 0 "#PWR013" H 7350 2100 50  0001 C CNN
F 1 "+5VA" H 7365 2423 50  0000 C CNN
F 2 "" H 7350 2250 50  0001 C CNN
F 3 "" H 7350 2250 50  0001 C CNN
	1    7350 2250
	1    0    0    -1  
$EndComp
Connection ~ 7350 2250
$Comp
L Device:CP_Small C23
U 1 1 5F27A82E
P 8250 2350
F 0 "C23" H 8338 2396 50  0000 L CNN
F 1 "10uF" H 8338 2305 50  0000 L CNN
F 2 "Capacitor_Tantalum_SMD:CP_EIA-3528-21_Kemet-B" H 8250 2350 50  0001 C CNN
F 3 "~" H 8250 2350 50  0001 C CNN
	1    8250 2350
	1    0    0    -1  
$EndComp
Wire Wire Line
	7900 2250 8250 2250
Wire Wire Line
	8250 2450 7900 2450
Connection ~ 7350 2450
Connection ~ 7900 2450
Wire Wire Line
	7900 2450 7350 2450
Wire Notes Line
	3850 2100 3800 2100
Wire Notes Line
	4100 2250 4100 2100
Wire Notes Line
	4100 2100 4050 2100
Wire Notes Line
	3800 2100 3800 2250
$Comp
L Device:CP_Small C20
U 1 1 5F2ED7DA
P 7100 3300
F 0 "C20" H 7188 3346 50  0000 L CNN
F 1 "10uF" H 7188 3255 50  0000 L CNN
F 2 "Capacitor_Tantalum_SMD:CP_EIA-3528-21_Kemet-B" H 7100 3300 50  0001 C CNN
F 3 "~" H 7100 3300 50  0001 C CNN
	1    7100 3300
	1    0    0    -1  
$EndComp
Wire Wire Line
	7350 3200 7100 3200
Connection ~ 7350 3200
$Comp
L power:GND #PWR011
U 1 1 5F30C917
P 7100 3400
F 0 "#PWR011" H 7100 3150 50  0001 C CNN
F 1 "GND" H 7105 3227 50  0000 C CNN
F 2 "" H 7100 3400 50  0001 C CNN
F 3 "" H 7100 3400 50  0001 C CNN
	1    7100 3400
	1    0    0    -1  
$EndComp
$Comp
L Device:C_Small C12
U 1 1 5F0D5943
P 4100 2700
F 0 "C12" H 4100 2800 50  0000 L CNN
F 1 "100nF" H 3850 3300 50  0000 L CNN
F 2 "Capacitor_SMD:C_1206_3216Metric_Pad1.42x1.75mm_HandSolder" H 4100 2700 50  0001 C CNN
F 3 "~" H 4100 2700 50  0001 C CNN
	1    4100 2700
	1    0    0    -1  
$EndComp
$Comp
L Device:C_Small C13
U 1 1 5F0C3B3A
P 4200 2450
F 0 "C13" H 4150 2600 50  0000 L CNN
F 1 "1uF" H 4150 2800 50  0000 L CNN
F 2 "Capacitor_SMD:C_1206_3216Metric_Pad1.42x1.75mm_HandSolder" H 4200 2450 50  0001 C CNN
F 3 "~" H 4200 2450 50  0001 C CNN
	1    4200 2450
	1    0    0    -1  
$EndComp
Wire Wire Line
	4800 2950 4600 2950
Connection ~ 4600 2950
Wire Wire Line
	4600 2950 4600 2800
Wire Notes Line
	4150 2100 4150 2250
Wire Notes Line
	4300 2100 4300 2250
$Comp
L Device:C_Small C18
U 1 1 5F3AF40F
P 6850 1150
F 0 "C18" H 6942 1196 50  0000 L CNN
F 1 "100nf" H 6942 1105 50  0000 L CNN
F 2 "Capacitor_SMD:C_1206_3216Metric_Pad1.42x1.75mm_HandSolder" H 6850 1150 50  0001 C CNN
F 3 "~" H 6850 1150 50  0001 C CNN
	1    6850 1150
	1    0    0    -1  
$EndComp
$Comp
L Device:C_Small C19
U 1 1 5F3B2EB6
P 6850 2200
F 0 "C19" H 6942 2246 50  0000 L CNN
F 1 "100nf" H 6942 2155 50  0000 L CNN
F 2 "Capacitor_SMD:C_1206_3216Metric_Pad1.42x1.75mm_HandSolder" H 6850 2200 50  0001 C CNN
F 3 "~" H 6850 2200 50  0001 C CNN
	1    6850 2200
	1    0    0    -1  
$EndComp
Wire Wire Line
	6450 2050 6850 2050
Wire Wire Line
	6850 2050 6850 2100
Connection ~ 6450 2050
Wire Wire Line
	6450 1000 6850 1000
Wire Wire Line
	6850 1000 6850 1050
Connection ~ 6450 1000
Wire Wire Line
	6850 1250 6850 1600
Wire Wire Line
	6850 1600 6450 1600
Connection ~ 6450 1600
Wire Wire Line
	6850 2300 6850 2650
Wire Wire Line
	6850 2650 6450 2650
Connection ~ 6450 2650
$Comp
L Analog_ADC:AD7609 U1
U 1 1 5F42139D
P 4450 4200
F 0 "U1" H 4350 4450 50  0000 C CNN
F 1 "AD7609" H 4450 4350 50  0000 C CNN
F 2 "Package_QFP:LQFP-64_10x10mm_P0.5mm" H 4200 4550 50  0001 C CNN
F 3 "https://www.analog.com/media/en/technical-documentation/data-sheets/ad7609.pdf" H 4200 4550 50  0001 C CNN
	1    4450 4200
	1    0    0    -1  
$EndComp
Connection ~ 4500 3000
Wire Wire Line
	4200 2550 4200 3000
Wire Notes Line
	7150 3000 7150 700 
Wire Notes Line
	7150 700  5400 700 
Wire Notes Line
	5400 700  5400 3000
Wire Notes Line
	5400 3000 7150 3000
Text Notes 5400 650  0    63   ~ 0
Optional external voltage reference
$Comp
L Graphic:Logo_Open_Hardware_Large #LOGO1
U 1 1 5F53FA6C
P 6500 7450
F 0 "#LOGO1" H 6500 7950 50  0001 C CNN
F 1 "Logo_Open_Hardware_Large" H 6500 7050 50  0001 C CNN
F 2 "" H 6500 7450 50  0001 C CNN
F 3 "~" H 6500 7450 50  0001 C CNN
	1    6500 7450
	1    0    0    -1  
$EndComp
Wire Wire Line
	1550 5050 1400 5050
$Comp
L Memory_EEPROM:CAT24C128 U3
U 1 1 5F5B9B40
P 9700 4900
F 0 "U3" H 10000 5300 50  0000 C CNN
F 1 "CAT24C128" H 9950 5200 50  0000 C CNN
F 2 "Package_SO:SOIC-8_3.9x4.9mm_P1.27mm" H 9700 4900 50  0001 C CNN
F 3 "https://www.onsemi.com/pub/Collateral/CAT24C128-D.PDF" H 9700 4900 50  0001 C CNN
	1    9700 4900
	-1   0    0    -1  
$EndComp
Wire Wire Line
	7450 4900 7150 4900
Wire Wire Line
	7150 4900 7150 5950
Wire Wire Line
	8850 5950 8850 4800
Wire Wire Line
	8850 4800 8950 4800
Wire Wire Line
	10100 4800 10100 4900
Connection ~ 10100 4900
Wire Wire Line
	10100 4900 10100 5000
Connection ~ 10100 5000
$Comp
L power:GND #PWR019
U 1 1 5F64FC3D
P 9700 5300
F 0 "#PWR019" H 9700 5050 50  0001 C CNN
F 1 "GND" H 9705 5127 50  0000 C CNN
F 2 "" H 9700 5300 50  0001 C CNN
F 3 "" H 9700 5300 50  0001 C CNN
	1    9700 5300
	1    0    0    -1  
$EndComp
$Comp
L power:+3V3 #PWR018
U 1 1 5F651D11
P 9700 4250
F 0 "#PWR018" H 9700 4100 50  0001 C CNN
F 1 "+3V3" H 9715 4423 50  0000 C CNN
F 2 "" H 9700 4250 50  0001 C CNN
F 3 "" H 9700 4250 50  0001 C CNN
	1    9700 4250
	1    0    0    -1  
$EndComp
Wire Wire Line
	9700 4600 9700 4450
$Comp
L Device:R R18
U 1 1 5F663102
P 8950 4600
F 0 "R18" H 9050 4300 50  0000 R CNN
F 1 "2k" H 9000 4400 50  0000 R CNN
F 2 "Resistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolder" V 8880 4600 50  0001 C CNN
F 3 "~" H 8950 4600 50  0001 C CNN
	1    8950 4600
	-1   0    0    1   
$EndComp
$Comp
L Device:R R19
U 1 1 5F669561
P 9050 4600
F 0 "R19" H 9000 4900 50  0000 L CNN
F 1 "2k" H 9000 4800 50  0000 L CNN
F 2 "Resistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolder" V 8980 4600 50  0001 C CNN
F 3 "~" H 9050 4600 50  0001 C CNN
	1    9050 4600
	1    0    0    -1  
$EndComp
$Comp
L Device:R R20
U 1 1 5F66984F
P 9150 4600
F 0 "R20" H 9150 4900 50  0000 L CNN
F 1 "2k" H 9100 4800 50  0000 L CNN
F 2 "Resistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolder" V 9080 4600 50  0001 C CNN
F 3 "~" H 9150 4600 50  0001 C CNN
	1    9150 4600
	1    0    0    -1  
$EndComp
Wire Wire Line
	9150 5000 9300 5000
Wire Wire Line
	9150 4750 9150 5000
Wire Wire Line
	9050 4750 9050 4900
Connection ~ 9050 4900
Wire Wire Line
	9050 4900 9300 4900
Wire Wire Line
	8950 4750 8950 4800
Connection ~ 8950 4800
Wire Wire Line
	8950 4800 9300 4800
Wire Wire Line
	8950 4450 9050 4450
Connection ~ 9700 4450
Wire Wire Line
	9700 4450 9700 4250
Connection ~ 9050 4450
Wire Wire Line
	9050 4450 9150 4450
Connection ~ 9150 4450
Wire Wire Line
	9150 4450 9700 4450
Wire Wire Line
	4800 6150 4800 6500
Wire Wire Line
	5000 6650 5000 6450
Connection ~ 5000 6450
Wire Wire Line
	4600 6350 4600 6650
$Comp
L Jumper:SolderJumper_2_Open JP2
U 1 1 5F722918
P 9150 5150
F 0 "JP2" V 9104 5218 50  0000 L CNN
F 1 "!WE" V 9195 5218 50  0000 L CNN
F 2 "Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm" H 9150 5150 50  0001 C CNN
F 3 "~" H 9150 5150 50  0001 C CNN
	1    9150 5150
	0    1    1    0   
$EndComp
Connection ~ 9150 5000
Wire Wire Line
	9150 5300 9700 5300
Wire Wire Line
	9700 5300 10100 5300
Wire Wire Line
	10100 5000 10100 5300
Connection ~ 9700 5300
Wire Wire Line
	9700 5200 9700 5300
Text Notes 3700 7200 0    63   ~ 0
Set high for internal reference Link 1 & 2\nSet low for external reference Link 2 & 3\nSet for internal by default
Wire Notes Line
	10200 4000 8800 4000
Wire Notes Line
	8800 4000 8800 5500
Wire Notes Line
	8800 5500 10200 5500
Wire Notes Line
	10200 4000 10200 5500
Text Notes 9050 5700 0    63   ~ 0
Very optional \nRaspberry pi EEPROM !
Wire Wire Line
	5600 2250 4800 2250
Connection ~ 5600 2250
$Comp
L Jumper:SolderJumper_3_Bridged12 JP1
U 1 1 5F8CA2BB
P 4800 6650
F 0 "JP1" H 4800 6763 50  0000 C CNN
F 1 "Int/Ext Ref Select" H 4800 6854 50  0000 C CNN
F 2 "Jumper:SolderJumper-3_P1.3mm_Bridged12_RoundedPad1.0x1.5mm_NumberLabels" H 4800 6650 50  0001 C CNN
F 3 "~" H 4800 6650 50  0001 C CNN
	1    4800 6650
	-1   0    0    1   
$EndComp
Wire Wire Line
	7950 4900 9050 4900
Wire Wire Line
	7150 5950 8850 5950
Wire Wire Line
	8100 4000 7950 4000
Wire Wire Line
	8100 4100 8100 4200
Wire Wire Line
	8100 5300 7950 5300
Wire Wire Line
	8100 5400 8100 5500
Wire Wire Line
	8100 5500 8100 5700
Wire Wire Line
	8100 3800 8100 3900
Wire Wire Line
	7950 4100 8350 4100
Wire Wire Line
	8100 5200 8100 5400
Wire Wire Line
	7950 5400 8350 5400
Wire Wire Line
	7950 5500 8350 5500
Wire Notes Line
	4450 2100 4450 2250
Wire Notes Line
	4650 2100 4650 2250
Wire Wire Line
	8100 3900 8100 4100
Wire Wire Line
	8100 4300 7950 4300
Wire Wire Line
	8100 4400 8100 4500
Wire Wire Line
	8100 4600 7950 4600
Wire Wire Line
	8100 4200 8100 4400
Wire Wire Line
	7950 4400 8350 4400
Wire Wire Line
	8100 4500 8100 4700
Wire Wire Line
	8100 4700 8100 5000
Wire Wire Line
	7950 4700 8350 4700
Wire Wire Line
	8100 5100 8350 5100
Wire Wire Line
	8100 5000 8100 5200
Wire Wire Line
	7950 3900 8350 3900
Wire Wire Line
	5600 1200 5600 2250
Wire Bus Line
	5850 6250 8450 6250
Wire Bus Line
	6750 3800 6750 6150
Wire Bus Line
	8450 4000 8450 6250
Wire Bus Line
	5850 3450 5850 6250
$Comp
L Connector:TestPoint_Alt TP1
U 1 1 5F215AA8
P 4800 2250
F 0 "TP1" H 4858 2368 50  0000 L CNN
F 1 "TestPoint_Alt" H 4858 2277 50  0000 L CNN
F 2 "TestPoint:TestPoint_Pad_2.5x2.5mm" H 5000 2250 50  0001 C CNN
F 3 "~" H 5000 2250 50  0001 C CNN
	1    4800 2250
	1    0    0    -1  
$EndComp
Connection ~ 4800 2250
$EndSCHEMATC
