EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 6 6
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L ADS831:ADS831E_2K5 U7
U 1 1 60FB23DE
P 8350 2250
F 0 "U7" H 9750 2637 60  0000 C CNN
F 1 "ADS831E_2K5" H 9750 2531 60  0000 C CNN
F 2 "ADS831:ADS831E&slash_2K5" H 9750 2490 60  0001 C CNN
F 3 "" H 8350 2250 60  0000 C CNN
	1    8350 2250
	-1   0    0    -1  
$EndComp
Wire Wire Line
	8350 2350 8600 2350
Wire Wire Line
	8600 2450 8350 2450
Wire Wire Line
	8600 2550 8350 2550
Wire Wire Line
	8600 2650 8350 2650
Wire Wire Line
	8600 2750 8350 2750
Wire Wire Line
	8600 2850 8350 2850
Wire Wire Line
	8600 2950 8350 2950
Wire Wire Line
	8600 3050 8350 3050
$Comp
L power:GND #PWR0101
U 1 1 61488143
P 8400 2150
F 0 "#PWR0101" H 8400 1900 50  0001 C CNN
F 1 "GND" H 8405 1977 50  0000 C CNN
F 2 "" H 8400 2150 50  0001 C CNN
F 3 "" H 8400 2150 50  0001 C CNN
	1    8400 2150
	1    0    0    1   
$EndComp
$Comp
L power:GND #PWR0102
U 1 1 614887E8
P 4950 2450
F 0 "#PWR0102" H 4950 2200 50  0001 C CNN
F 1 "GND" H 4955 2277 50  0000 C CNN
F 2 "" H 4950 2450 50  0001 C CNN
F 3 "" H 4950 2450 50  0001 C CNN
	1    4950 2450
	0    1    -1   0   
$EndComp
Wire Wire Line
	8400 2150 8400 2250
Wire Wire Line
	8400 2250 8350 2250
$Comp
L power:+5VA #PWR0103
U 1 1 6148C30D
P 5150 2350
F 0 "#PWR0103" H 5150 2200 50  0001 C CNN
F 1 "+5VA" H 5165 2523 50  0000 C CNN
F 2 "" H 5150 2350 50  0001 C CNN
F 3 "" H 5150 2350 50  0001 C CNN
	1    5150 2350
	0    -1   1    0   
$EndComp
$Comp
L power:GND #PWR0104
U 1 1 614ABABB
P 4400 3150
F 0 "#PWR0104" H 4400 2900 50  0001 C CNN
F 1 "GND" V 4405 3022 50  0000 R CNN
F 2 "" H 4400 3150 50  0001 C CNN
F 3 "" H 4400 3150 50  0001 C CNN
	1    4400 3150
	-1   0    0    -1  
$EndComp
$Comp
L Amplifier_Operational:OPA847xD U13
U 1 1 614B1E6E
P 3650 2550
F 0 "U13" H 3994 2596 50  0000 L CNN
F 1 "OPA681" H 3994 2505 50  0000 L CNN
F 2 "Package_SO:SOIC-8_3.9x4.9mm_P1.27mm" H 3650 2550 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/opa847.pdf" H 3650 2750 50  0001 C CNN
	1    3650 2550
	1    0    0    -1  
$EndComp
$Comp
L power:+5VA #PWR0105
U 1 1 614B6AAE
P 5250 3150
F 0 "#PWR0105" H 5250 3000 50  0001 C CNN
F 1 "+5VA" V 5265 3278 50  0000 L CNN
F 2 "" H 5250 3150 50  0001 C CNN
F 3 "" H 5250 3150 50  0001 C CNN
	1    5250 3150
	0    -1   1    0   
$EndComp
Wire Wire Line
	5250 3150 5550 3150
$Comp
L Device:R R35
U 1 1 614C66FD
P 5300 2850
F 0 "R35" V 5093 2850 50  0000 C CNN
F 1 "1k" V 5184 2850 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 5230 2850 50  0001 C CNN
F 3 "~" H 5300 2850 50  0001 C CNN
	1    5300 2850
	0    1    1    0   
$EndComp
$Comp
L Device:R R36
U 1 1 614C7B9C
P 5300 2950
F 0 "R36" V 5507 2950 50  0000 C CNN
F 1 "1k" V 5416 2950 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 5230 2950 50  0001 C CNN
F 3 "~" H 5300 2950 50  0001 C CNN
	1    5300 2950
	0    -1   -1   0   
$EndComp
Wire Wire Line
	5550 2850 5450 2850
Wire Wire Line
	5450 2950 5550 2950
Wire Wire Line
	5150 2850 5050 2850
Wire Wire Line
	5050 2850 5050 2950
Wire Wire Line
	5050 2950 5150 2950
$Comp
L Device:R R34
U 1 1 614CFF0D
P 4450 2550
F 0 "R34" V 4243 2550 50  0000 C CNN
F 1 "39" V 4334 2550 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 4380 2550 50  0001 C CNN
F 3 "~" H 4450 2550 50  0001 C CNN
	1    4450 2550
	0    1    1    0   
$EndComp
$Comp
L Device:C C38
U 1 1 614D04E3
P 4750 2700
F 0 "C38" H 4865 2746 50  0000 L CNN
F 1 "47pF" H 4865 2655 50  0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric" H 4788 2550 50  0001 C CNN
F 3 "~" H 4750 2700 50  0001 C CNN
	1    4750 2700
	1    0    0    -1  
$EndComp
Wire Wire Line
	4750 2850 4750 3050
Connection ~ 4750 3050
Wire Wire Line
	4750 3050 4950 3050
Wire Wire Line
	4600 2550 4750 2550
Connection ~ 4750 2550
Wire Wire Line
	4750 2550 5550 2550
$Comp
L Device:R R33
U 1 1 614D4C4E
P 3550 3250
F 0 "R33" V 3343 3250 50  0000 C CNN
F 1 "402" V 3434 3250 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 3480 3250 50  0001 C CNN
F 3 "~" H 3550 3250 50  0001 C CNN
	1    3550 3250
	0    1    1    0   
$EndComp
Wire Wire Line
	3550 2850 3550 3050
Wire Wire Line
	3550 3050 4400 3050
Wire Wire Line
	4400 3150 4400 3050
Connection ~ 4400 3050
Wire Wire Line
	4400 3050 4750 3050
Wire Wire Line
	3700 3250 4100 3250
Wire Wire Line
	4100 3250 4100 2550
Connection ~ 4100 2550
Wire Wire Line
	4100 2550 3950 2550
Wire Wire Line
	3400 3250 3200 3250
Wire Wire Line
	3200 3250 3200 2650
Wire Wire Line
	3200 2650 3350 2650
$Comp
L Device:R R32
U 1 1 614DAD32
P 3200 3500
F 0 "R32" H 3270 3546 50  0000 L CNN
F 1 "402" H 3270 3455 50  0000 L CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 3130 3500 50  0001 C CNN
F 3 "~" H 3200 3500 50  0001 C CNN
	1    3200 3500
	1    0    0    -1  
$EndComp
Wire Wire Line
	3200 3350 3200 3250
Connection ~ 3200 3250
$Comp
L Device:C C37
U 1 1 614DC5D4
P 3200 3900
F 0 "C37" H 3315 3946 50  0000 L CNN
F 1 "0.1uF" H 3315 3855 50  0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric" H 3238 3750 50  0001 C CNN
F 3 "~" H 3200 3900 50  0001 C CNN
	1    3200 3900
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0106
U 1 1 614DCD4E
P 3200 4150
F 0 "#PWR0106" H 3200 3900 50  0001 C CNN
F 1 "GND" H 3205 3977 50  0000 C CNN
F 2 "" H 3200 4150 50  0001 C CNN
F 3 "" H 3200 4150 50  0001 C CNN
	1    3200 4150
	1    0    0    -1  
$EndComp
$Comp
L Device:C C36
U 1 1 614DE0CC
P 2700 2450
F 0 "C36" V 2448 2450 50  0000 C CNN
F 1 "0.1uF" V 2539 2450 50  0000 C CNN
F 2 "Capacitor_SMD:C_0603_1608Metric" H 2738 2300 50  0001 C CNN
F 3 "~" H 2700 2450 50  0001 C CNN
	1    2700 2450
	0    1    1    0   
$EndComp
$Comp
L power:+5VA #PWR0107
U 1 1 614E5495
P 3550 2100
F 0 "#PWR0107" H 3550 1950 50  0001 C CNN
F 1 "+5VA" H 3565 2273 50  0000 C CNN
F 2 "" H 3550 2100 50  0001 C CNN
F 3 "" H 3550 2100 50  0001 C CNN
	1    3550 2100
	1    0    0    -1  
$EndComp
Wire Wire Line
	3550 2100 3550 2250
Wire Wire Line
	3350 2450 3050 2450
Wire Wire Line
	2550 2450 2100 2450
Wire Wire Line
	3050 2950 3050 2450
Connection ~ 3050 2450
Wire Wire Line
	3050 2450 2850 2450
Wire Wire Line
	3050 2950 5050 2950
Connection ~ 5050 2950
Wire Wire Line
	4100 2550 4300 2550
Wire Wire Line
	3200 3650 3200 3750
Wire Wire Line
	3200 4050 3200 4150
$Comp
L Device:C C39
U 1 1 614EF02F
P 5300 2700
F 0 "C39" V 5552 2700 50  0000 C CNN
F 1 "0.1uF" V 5461 2700 50  0000 C CNN
F 2 "Capacitor_SMD:C_0603_1608Metric" H 5338 2550 50  0001 C CNN
F 3 "~" H 5300 2700 50  0001 C CNN
	1    5300 2700
	0    -1   -1   0   
$EndComp
Wire Wire Line
	5550 2750 5550 2700
Wire Wire Line
	5450 2700 5550 2700
Connection ~ 5550 2700
Wire Wire Line
	5550 2700 5550 2650
Wire Wire Line
	5150 2700 4950 2700
Wire Wire Line
	4950 2700 4950 3050
Connection ~ 4950 3050
Wire Wire Line
	4950 3050 5550 3050
Text HLabel 2100 2450 0    50   Input ~ 0
ADC_IN
Text HLabel 8600 3150 2    50   Input ~ 0
ADC_CLK
$Comp
L power:+3.3VA #PWR058
U 1 1 60CB177C
P 5350 2250
F 0 "#PWR058" H 5350 2100 50  0001 C CNN
F 1 "+3.3VA" V 5365 2377 50  0000 L CNN
F 2 "" H 5350 2250 50  0001 C CNN
F 3 "" H 5350 2250 50  0001 C CNN
	1    5350 2250
	0    -1   -1   0   
$EndComp
$Comp
L Device:C C40
U 1 1 60CB5566
P 5200 1950
F 0 "C40" H 5315 1996 50  0000 L CNN
F 1 "10uF" H 5315 1905 50  0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric" H 5238 1800 50  0001 C CNN
F 3 "~" H 5200 1950 50  0001 C CNN
	1    5200 1950
	1    0    0    -1  
$EndComp
$Comp
L Device:C C41
U 1 1 60CB7A55
P 5450 1950
F 0 "C41" H 5565 1996 50  0000 L CNN
F 1 "0.1uF" H 5565 1905 50  0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric" H 5488 1800 50  0001 C CNN
F 3 "~" H 5450 1950 50  0001 C CNN
	1    5450 1950
	1    0    0    -1  
$EndComp
Wire Wire Line
	4950 2450 5550 2450
Wire Wire Line
	5150 2350 5200 2350
Wire Wire Line
	5350 2250 5450 2250
Wire Wire Line
	5200 2100 5200 2350
Connection ~ 5200 2350
Wire Wire Line
	5200 2350 5550 2350
Wire Wire Line
	5450 2100 5450 2250
Connection ~ 5450 2250
Wire Wire Line
	5450 2250 5550 2250
Wire Wire Line
	5200 1800 5200 1750
Wire Wire Line
	5200 1750 5450 1750
Wire Wire Line
	5450 1750 5450 1800
$Comp
L power:GND #PWR057
U 1 1 60CCC812
P 5200 1600
F 0 "#PWR057" H 5200 1350 50  0001 C CNN
F 1 "GND" H 5205 1427 50  0000 C CNN
F 2 "" H 5200 1600 50  0001 C CNN
F 3 "" H 5200 1600 50  0001 C CNN
	1    5200 1600
	-1   0    0    1   
$EndComp
Wire Wire Line
	5200 1600 5200 1750
Connection ~ 5200 1750
$Comp
L power:+5VA #PWR0108
U 1 1 60CD6EC0
P 3750 2850
F 0 "#PWR0108" H 3750 2700 50  0001 C CNN
F 1 "+5VA" V 3765 2978 50  0000 L CNN
F 2 "" H 3750 2850 50  0001 C CNN
F 3 "" H 3750 2850 50  0001 C CNN
	1    3750 2850
	0    1    1    0   
$EndComp
Wire Wire Line
	3750 2850 3650 2850
Text HLabel 8600 2350 2    50   Input ~ 0
ADC_DATA1
Text HLabel 8600 2450 2    50   Input ~ 0
ADC_DATA2
Text HLabel 8600 2550 2    50   Input ~ 0
ADC_DATA3
Text HLabel 8600 2650 2    50   Input ~ 0
ADC_DATA4
Text HLabel 8600 2750 2    50   Input ~ 0
ADC_DATA5
Text HLabel 8600 2850 2    50   Input ~ 0
ADC_DATA6
Text HLabel 8600 2950 2    50   Input ~ 0
ADC_DATA7
Text HLabel 8600 3050 2    50   Input ~ 0
ADC_DATA8
Wire Wire Line
	8350 3150 8600 3150
$EndSCHEMATC