EESchema Schematic File Version 2
LIBS:power
LIBS:device
LIBS:transistors
LIBS:conn
LIBS:linear
LIBS:regul
LIBS:74xx
LIBS:cmos4000
LIBS:adc-dac
LIBS:memory
LIBS:xilinx
LIBS:microcontrollers
LIBS:dsp
LIBS:microchip
LIBS:analog_switches
LIBS:motorola
LIBS:texas
LIBS:intel
LIBS:audio
LIBS:interface
LIBS:digital-audio
LIBS:philips
LIBS:display
LIBS:cypress
LIBS:siliconi
LIBS:opto
LIBS:atmel
LIBS:contrib
LIBS:valves
LIBS:OPV-cache
EELAYER 25 0
EELAYER END
$Descr User 8268 5827
encoding utf-8
Sheet 1 1
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L CONN_01X07 P2
U 1 1 5AB3ACB3
P 4550 2250
F 0 "P2" H 4550 2650 50  0000 C CNN
F 1 "CONN_01X07" V 4650 2250 50  0000 C CNN
F 2 "Pin_Headers:Pin_Header_Straight_1x07" V 4550 2250 50  0001 C CNN
F 3 "" H 4550 2250 50  0000 C CNN
	1    4550 2250
	1    0    0    1   
$EndComp
$Comp
L CONN_01X07 P1
U 1 1 5AB3AD07
P 1700 2250
F 0 "P1" H 1700 2650 50  0000 C CNN
F 1 "CONN_01X07" V 1800 2250 50  0000 C CNN
F 2 "Pin_Headers:Pin_Header_Straight_1x07" V 1700 2250 50  0001 C CNN
F 3 "" H 1700 2250 50  0000 C CNN
	1    1700 2250
	-1   0    0    -1  
$EndComp
$Comp
L LM324 U1
U 1 1 5AB3AE31
P 2800 1550
F 0 "U1" H 2850 1750 50  0001 C CNN
F 1 "LMV824M" V 2950 1350 50  0000 C CNN
F 2 "Housings_SOIC:SOIC-14_3.9x8.7mm_Pitch1.27mm" H 2750 1650 50  0001 C CNN
F 3 "" H 2850 1750 50  0000 C CNN
	1    2800 1550
	0    1    -1   0   
$EndComp
$Comp
L LM324 U1
U 3 1 5AB3AF91
P 3600 2900
F 0 "U1" H 3650 3100 50  0001 C CNN
F 1 "LMV824M" V 3750 2700 50  0000 C CNN
F 2 "Housings_SOIC:SOIC-14_3.9x8.7mm_Pitch1.27mm" H 3550 3000 50  0001 C CNN
F 3 "" H 3650 3100 50  0000 C CNN
	3    3600 2900
	0    -1   1    0   
$EndComp
$Comp
L LM324 U1
U 4 1 5AB3AFF0
P 3600 1550
F 0 "U1" H 3650 1750 50  0001 C CNN
F 1 "LMV824M" V 3750 1350 50  0000 C CNN
F 2 "Housings_SOIC:SOIC-14_3.9x8.7mm_Pitch1.27mm" H 3550 1650 50  0001 C CNN
F 3 "" H 3650 1750 50  0000 C CNN
	4    3600 1550
	0    -1   -1   0   
$EndComp
Wire Wire Line
	1900 2250 3250 2250
Wire Wire Line
	3300 1650 3250 1650
Wire Wire Line
	3250 1650 3250 2800
Wire Wire Line
	3150 2800 3100 2800
Wire Wire Line
	3150 1650 3150 2800
Connection ~ 3150 2250
Connection ~ 3250 2250
Wire Wire Line
	3950 1650 3950 2800
Wire Wire Line
	3950 1650 3900 1650
Connection ~ 3950 2300
Wire Wire Line
	1950 1950 1900 1950
Wire Wire Line
	1950 1200 1950 1950
Wire Wire Line
	2900 1850 2900 2150
Wire Wire Line
	1900 2350 2900 2350
Wire Wire Line
	2900 2350 2900 2600
Wire Wire Line
	1900 2450 2700 2450
Wire Wire Line
	2700 2450 2700 2600
Wire Wire Line
	2800 3200 2800 3250
Wire Wire Line
	2800 3250 1950 3250
Wire Wire Line
	1950 3250 1950 2550
Wire Wire Line
	1950 2550 1900 2550
Wire Wire Line
	3600 3200 3600 3250
Wire Wire Line
	3600 3250 4300 3250
Wire Wire Line
	4300 3250 4300 2550
Wire Wire Line
	4300 2550 4350 2550
Wire Wire Line
	2450 1650 2500 1650
Wire Wire Line
	2450 2800 2500 2800
Wire Wire Line
	2450 1650 2450 2800
Wire Wire Line
	4150 2250 4350 2250
Wire Wire Line
	4350 2150 3500 2150
Wire Wire Line
	3500 2150 3500 1850
Wire Wire Line
	3700 1850 3700 2050
Wire Wire Line
	3700 2050 4350 2050
Wire Wire Line
	3500 2600 3500 2350
Wire Wire Line
	3500 2350 4350 2350
Wire Wire Line
	4350 2450 3700 2450
Wire Wire Line
	3700 2450 3700 2600
Wire Wire Line
	2900 2150 1900 2150
Wire Wire Line
	1900 2050 2700 2050
Wire Wire Line
	2700 2050 2700 1850
Wire Wire Line
	2800 1250 2800 1200
Wire Wire Line
	2800 1200 1950 1200
Wire Wire Line
	3600 1250 3600 1200
Wire Wire Line
	3600 1200 4300 1200
Wire Wire Line
	4300 1200 4300 1950
Wire Wire Line
	4300 1950 4350 1950
Text Label 2770 2930 0    60   ~ 0
B
Text Label 3570 2930 0    60   ~ 0
C
Text Label 2770 1570 0    60   ~ 0
A
Text Label 3580 1560 0    60   ~ 0
D
Connection ~ 2150 2250
Wire Wire Line
	3100 1650 3150 1650
Wire Wire Line
	3250 2800 3300 2800
Connection ~ 2450 2300
Wire Wire Line
	3950 2800 3900 2800
$Comp
L GND #PWR01
U 1 1 5AB3C9BD
P 4150 2700
F 0 "#PWR01" H 4150 2450 50  0001 C CNN
F 1 "GND" H 4150 2550 50  0000 C CNN
F 2 "" H 4150 2700 50  0000 C CNN
F 3 "" H 4150 2700 50  0000 C CNN
	1    4150 2700
	1    0    0    -1  
$EndComp
Wire Wire Line
	4150 2250 4150 2700
Connection ~ 4150 2300
Wire Wire Line
	2450 2300 4150 2300
$Comp
L VCC #PWR02
U 1 1 5AB3CAFB
P 2150 1800
F 0 "#PWR02" H 2150 1650 50  0001 C CNN
F 1 "VCC" H 2150 1950 50  0000 C CNN
F 2 "" H 2150 1800 50  0000 C CNN
F 3 "" H 2150 1800 50  0000 C CNN
	1    2150 1800
	1    0    0    -1  
$EndComp
Wire Wire Line
	2150 1800 2150 2250
$Comp
L PWR_FLAG #FLG03
U 1 1 5AB3CC98
P 3050 1200
F 0 "#FLG03" H 3050 1295 50  0001 C CNN
F 1 "PWR_FLAG" H 3050 1380 50  0000 C CNN
F 2 "" H 3050 1200 50  0000 C CNN
F 3 "" H 3050 1200 50  0000 C CNN
	1    3050 1200
	1    0    0    -1  
$EndComp
$Comp
L VCC #PWR04
U 1 1 5AB3CD18
P 3050 1200
F 0 "#PWR04" H 3050 1050 50  0001 C CNN
F 1 "VCC" H 3050 1350 50  0000 C CNN
F 2 "" H 3050 1200 50  0000 C CNN
F 3 "" H 3050 1200 50  0000 C CNN
	1    3050 1200
	1    0    0    1   
$EndComp
$Comp
L GND #PWR05
U 1 1 5AB3CD41
P 3400 1200
F 0 "#PWR05" H 3400 950 50  0001 C CNN
F 1 "GND" H 3400 1050 50  0000 C CNN
F 2 "" H 3400 1200 50  0000 C CNN
F 3 "" H 3400 1200 50  0000 C CNN
	1    3400 1200
	1    0    0    -1  
$EndComp
$Comp
L PWR_FLAG #FLG06
U 1 1 5AB3CD52
P 3400 1200
F 0 "#FLG06" H 3400 1295 50  0001 C CNN
F 1 "PWR_FLAG" H 3400 1380 50  0000 C CNN
F 2 "" H 3400 1200 50  0000 C CNN
F 3 "" H 3400 1200 50  0000 C CNN
	1    3400 1200
	1    0    0    -1  
$EndComp
$Comp
L LM324 U1
U 2 1 5AB3CE92
P 2800 2900
F 0 "U1" V 2850 3100 50  0001 C CNN
F 1 "LMV824M" V 2950 2700 50  0000 C CNN
F 2 "Housings_SOIC:SOIC-14_3.9x8.7mm_Pitch1.27mm" H 2750 3000 50  0001 C CNN
F 3 "" H 2850 3100 50  0000 C CNN
	2    2800 2900
	0    1    1    0   
$EndComp
$EndSCHEMATC