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:nocko
LIBS:bmi-8ch-cache
EELAYER 25 0
EELAYER END
$Descr USLetter 11000 8500
encoding utf-8
Sheet 2 2
Title "Input Channel 0/1"
Date "2017-03-23"
Rev "AA"
Comp "Monadnock Systems"
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L R R201
U 1 1 58D46487
P 6200 1100
AR Path="/58D4647E/58D46487" Ref="R201"  Part="1" 
AR Path="/58D5695A/58D46487" Ref="R201"  Part="1" 
F 0 "R201" V 6280 1100 50  0000 C CNN
F 1 "DNP" V 6200 1100 50  0000 C CNN
F 2 "" V 6130 1100 50  0001 C CNN
F 3 "" H 6200 1100 50  0001 C CNN
	1    6200 1100
	1    0    0    -1  
$EndComp
$Comp
L R R204
U 1 1 58D46589
P 6200 1700
AR Path="/58D4647E/58D46589" Ref="R204"  Part="1" 
AR Path="/58D5695A/58D46589" Ref="R204"  Part="1" 
F 0 "R204" V 6280 1700 50  0000 C CNN
F 1 "2M" V 6200 1700 50  0000 C CNN
F 2 "" V 6130 1700 50  0001 C CNN
F 3 "" H 6200 1700 50  0001 C CNN
	1    6200 1700
	1    0    0    -1  
$EndComp
$Comp
L R R205
U 1 1 58D465AD
P 6550 1700
AR Path="/58D4647E/58D465AD" Ref="R205"  Part="1" 
AR Path="/58D5695A/58D465AD" Ref="R205"  Part="1" 
F 0 "R205" V 6630 1700 50  0000 C CNN
F 1 "2M" V 6550 1700 50  0000 C CNN
F 2 "" V 6480 1700 50  0001 C CNN
F 3 "" H 6550 1700 50  0001 C CNN
	1    6550 1700
	1    0    0    -1  
$EndComp
$Comp
L R R202
U 1 1 58D465DB
P 6550 1100
AR Path="/58D4647E/58D465DB" Ref="R202"  Part="1" 
AR Path="/58D5695A/58D465DB" Ref="R202"  Part="1" 
F 0 "R202" V 6630 1100 50  0000 C CNN
F 1 "2M" V 6550 1100 50  0000 C CNN
F 2 "" V 6480 1100 50  0001 C CNN
F 3 "" H 6550 1100 50  0001 C CNN
	1    6550 1100
	1    0    0    -1  
$EndComp
$Comp
L CONN_01X02 J201
U 1 1 58D46616
P 5700 1100
AR Path="/58D4647E/58D46616" Ref="J201"  Part="1" 
AR Path="/58D5695A/58D46616" Ref="J201"  Part="1" 
F 0 "J201" H 5700 1250 50  0000 C CNN
F 1 "CONN_01X02" V 5800 1100 50  0000 C CNN
F 2 "" H 5700 1100 50  0001 C CNN
F 3 "" H 5700 1100 50  0001 C CNN
	1    5700 1100
	-1   0    0    -1  
$EndComp
Wire Wire Line
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Wire Wire Line
	6000 1150 5900 1150
Connection ~ 6200 1400
Wire Wire Line
	5900 1050 5900 950 
Wire Wire Line
	5900 950  6550 950 
Connection ~ 6200 950 
Wire Wire Line
	6400 950  6400 800 
Connection ~ 6400 950 
Wire Wire Line
	6200 1850 6550 1850
Wire Wire Line
	6400 1850 6400 1950
Connection ~ 6400 1850
$Comp
L GNDA #PWR01
U 1 1 58D466F6
P 6400 1950
AR Path="/58D4647E/58D466F6" Ref="#PWR01"  Part="1" 
AR Path="/58D5695A/58D466F6" Ref="#PWR01"  Part="1" 
F 0 "#PWR01" H 6400 1700 50  0001 C CNN
F 1 "GNDA" H 6400 1800 50  0000 C CNN
F 2 "" H 6400 1950 50  0001 C CNN
F 3 "" H 6400 1950 50  0001 C CNN
	1    6400 1950
	1    0    0    -1  
$EndComp
Text GLabel 6400 800  1    60   Input ~ 0
Vref
Connection ~ 6000 1400
Text Label 5850 1400 0    60   ~ 0
A
Text Label 6700 1400 2    60   ~ 0
B
Wire Wire Line
	5850 1400 6200 1400
Wire Wire Line
	6200 1250 6200 1550
$Comp
L AD8237 U201
U 1 1 58D46CC7
P 7750 1500
AR Path="/58D4647E/58D46CC7" Ref="U201"  Part="1" 
AR Path="/58D5695A/58D46CC7" Ref="U201"  Part="1" 
F 0 "U201" H 7950 1650 50  0000 L CNN
F 1 "AD8237" H 7950 1350 50  0000 L CNN
F 2 "" H 7750 1500 50  0001 C CNN
F 3 "" H 7750 1500 50  0001 C CNN
	1    7750 1500
	1    0    0    -1  
$EndComp
Text Label 6650 1300 0    60   ~ 0
A
$Comp
L GNDA #PWR02
U 1 1 58D46DAE
P 7650 1800
AR Path="/58D4647E/58D46DAE" Ref="#PWR02"  Part="1" 
AR Path="/58D5695A/58D46DAE" Ref="#PWR02"  Part="1" 
F 0 "#PWR02" H 7650 1550 50  0001 C CNN
F 1 "GNDA" H 7650 1650 50  0000 C CNN
F 2 "" H 7650 1800 50  0001 C CNN
F 3 "" H 7650 1800 50  0001 C CNN
	1    7650 1800
	1    0    0    -1  
$EndComp
$Comp
L +5V #PWR03
U 1 1 58D46DFB
P 7650 1200
AR Path="/58D4647E/58D46DFB" Ref="#PWR03"  Part="1" 
AR Path="/58D5695A/58D46DFB" Ref="#PWR03"  Part="1" 
F 0 "#PWR03" H 7650 1050 50  0001 C CNN
F 1 "+5V" H 7650 1340 50  0000 C CNN
F 2 "" H 7650 1200 50  0001 C CNN
F 3 "" H 7650 1200 50  0001 C CNN
	1    7650 1200
	1    0    0    -1  
$EndComp
Wire Wire Line
	7750 1800 7650 1800
$Comp
L R R207
U 1 1 58D46EC4
P 8150 2000
AR Path="/58D4647E/58D46EC4" Ref="R207"  Part="1" 
AR Path="/58D5695A/58D46EC4" Ref="R207"  Part="1" 
F 0 "R207" V 8230 2000 50  0000 C CNN
F 1 "2k" V 8150 2000 50  0000 C CNN
F 2 "" V 8080 2000 50  0001 C CNN
F 3 "" H 8150 2000 50  0001 C CNN
	1    8150 2000
	0    1    1    0   
$EndComp
$Comp
L R R208
U 1 1 58D46F3B
P 8550 2000
AR Path="/58D4647E/58D46F3B" Ref="R208"  Part="1" 
AR Path="/58D5695A/58D46F3B" Ref="R208"  Part="1" 
F 0 "R208" V 8630 2000 50  0000 C CNN
F 1 "97.6k" V 8550 2000 50  0000 C CNN
F 2 "" V 8480 2000 50  0001 C CNN
F 3 "" H 8550 2000 50  0001 C CNN
	1    8550 2000
	0    1    1    0   
$EndComp
Wire Wire Line
	8700 2000 8700 1500
Wire Wire Line
	8300 2000 8400 2000
Wire Wire Line
	8350 2000 8350 1800
Wire Wire Line
	8350 1800 7850 1800
Connection ~ 8350 2000
Wire Wire Line
	7750 1200 8900 1200
Wire Wire Line
	8900 1200 8900 2200
Wire Wire Line
	8900 2200 8000 2200
Wire Wire Line
	8000 2200 8000 2000
Text GLabel 8000 2200 0    60   Input ~ 0
Vref/2
Wire Wire Line
	6550 1250 6550 1550
Connection ~ 6550 1400
Wire Wire Line
	6550 1400 6700 1400
Wire Wire Line
	6700 1400 6700 1700
Wire Wire Line
	6650 1300 6850 1300
$Comp
L C C201
U 1 1 58D47450
P 7000 1300
AR Path="/58D4647E/58D47450" Ref="C201"  Part="1" 
AR Path="/58D5695A/58D47450" Ref="C201"  Part="1" 
F 0 "C201" V 7050 1350 50  0000 L CNN
F 1 "482nF" V 6850 1200 50  0000 L CNN
F 2 "" H 7038 1150 50  0001 C CNN
F 3 "" H 7000 1300 50  0001 C CNN
	1    7000 1300
	0    1    1    0   
$EndComp
$Comp
L C C202
U 1 1 58D47535
P 7000 1700
AR Path="/58D4647E/58D47535" Ref="C202"  Part="1" 
AR Path="/58D5695A/58D47535" Ref="C202"  Part="1" 
F 0 "C202" V 6950 1750 50  0000 L CNN
F 1 "482nF" V 7150 1600 50  0000 L CNN
F 2 "" H 7038 1550 50  0001 C CNN
F 3 "" H 7000 1700 50  0001 C CNN
	1    7000 1700
	0    1    1    0   
$EndComp
Text HLabel 9750 1600 3    60   Input ~ 0
OUTPUT0
Connection ~ 8700 1500
Wire Notes Line
	6850 1000 7500 1000
Wire Notes Line
	7450 2250 6900 2250
Text Notes 6750 900  0    60   ~ 0
3db down @ 0.33Hz
$Comp
L CONN_01X03 J202
U 1 1 58D482DB
P 9750 1200
AR Path="/58D4647E/58D482DB" Ref="J202"  Part="1" 
AR Path="/58D5695A/58D482DB" Ref="J202"  Part="1" 
F 0 "J202" H 9750 1400 50  0000 C CNN
F 1 "Bypass Antialias Filter" V 9850 1200 50  0000 C CNN
F 2 "" H 9750 1200 50  0001 C CNN
F 3 "" H 9750 1200 50  0001 C CNN
	1    9750 1200
	0    -1   -1   0   
$EndComp
$Comp
L AD8629 U202
U 1 1 58D497DC
P 8050 3250
AR Path="/58D4647E/58D497DC" Ref="U202"  Part="1" 
AR Path="/58D5695A/58D497DC" Ref="U202"  Part="1" 
F 0 "U202" H 8250 3400 50  0000 L CNN
F 1 "AD8629" H 8250 3100 50  0000 L CNN
F 2 "" H 8050 3250 50  0001 C CNN
F 3 "" H 8050 3250 50  0001 C CNN
	1    8050 3250
	1    0    0    -1  
$EndComp
$Comp
L C C204
U 1 1 58D49933
P 7350 3300
AR Path="/58D4647E/58D49933" Ref="C204"  Part="1" 
AR Path="/58D5695A/58D49933" Ref="C204"  Part="1" 
F 0 "C204" H 7375 3400 50  0000 L CNN
F 1 "910pF" H 7375 3200 50  0000 L CNN
F 2 "" H 7388 3150 50  0001 C CNN
F 3 "" H 7350 3300 50  0001 C CNN
	1    7350 3300
	1    0    0    -1  
$EndComp
$Comp
L C C203
U 1 1 58D499AB
P 7850 2700
AR Path="/58D4647E/58D499AB" Ref="C203"  Part="1" 
AR Path="/58D5695A/58D499AB" Ref="C203"  Part="1" 
F 0 "C203" H 7875 2800 50  0000 L CNN
F 1 "9.1nF" H 7875 2600 50  0000 L CNN
F 2 "" H 7888 2550 50  0001 C CNN
F 3 "" H 7850 2700 50  0001 C CNN
	1    7850 2700
	0    1    1    0   
$EndComp
$Comp
L R R210
U 1 1 58D49A2E
P 7100 3150
AR Path="/58D4647E/58D49A2E" Ref="R210"  Part="1" 
AR Path="/58D5695A/58D49A2E" Ref="R210"  Part="1" 
F 0 "R210" V 7180 3150 50  0000 C CNN
F 1 "1.15M" V 7100 3150 50  0000 C CNN
F 2 "" V 7030 3150 50  0001 C CNN
F 3 "" H 7100 3150 50  0001 C CNN
	1    7100 3150
	0    1    1    0   
$EndComp
$Comp
L R R209
U 1 1 58D49ACD
P 6700 3150
AR Path="/58D4647E/58D49ACD" Ref="R209"  Part="1" 
AR Path="/58D5695A/58D49ACD" Ref="R209"  Part="1" 
F 0 "R209" V 6780 3150 50  0000 C CNN
F 1 "86.6k" V 6700 3150 50  0000 C CNN
F 2 "" V 6630 3150 50  0001 C CNN
F 3 "" H 6700 3150 50  0001 C CNN
	1    6700 3150
	0    1    1    0   
$EndComp
$Comp
L +5V #PWR07
U 1 1 58D49BBE
P 8000 3000
AR Path="/58D4647E/58D49BBE" Ref="#PWR07"  Part="1" 
AR Path="/58D5695A/58D49BBE" Ref="#PWR07"  Part="1" 
F 0 "#PWR07" H 8000 2850 50  0001 C CNN
F 1 "+5V" H 8000 3140 50  0000 C CNN
F 2 "" H 8000 3000 50  0001 C CNN
F 3 "" H 8000 3000 50  0001 C CNN
	1    8000 3000
	1    0    0    -1  
$EndComp
$Comp
L GNDA #PWR08
U 1 1 58D49BFF
P 7350 3450
AR Path="/58D4647E/58D49BFF" Ref="#PWR08"  Part="1" 
AR Path="/58D5695A/58D49BFF" Ref="#PWR08"  Part="1" 
F 0 "#PWR08" H 7350 3200 50  0001 C CNN
F 1 "GNDA" H 7350 3300 50  0000 C CNN
F 2 "" H 7350 3450 50  0001 C CNN
F 3 "" H 7350 3450 50  0001 C CNN
	1    7350 3450
	1    0    0    -1  
$EndComp
Wire Wire Line
	7750 3350 7600 3350
Wire Wire Line
	7600 3350 7600 3750
Wire Wire Line
	8700 2700 8700 3750
Wire Wire Line
	8350 3250 9850 3250
Wire Wire Line
	6850 3150 6950 3150
Wire Wire Line
	7250 3150 7750 3150
Connection ~ 7350 3150
Wire Wire Line
	6900 3150 6900 2700
Wire Wire Line
	6900 2700 7700 2700
Connection ~ 6900 3150
Wire Wire Line
	8700 2700 8000 2700
Connection ~ 8700 3250
Wire Wire Line
	6550 3150 6550 2450
Wire Wire Line
	6550 2450 9300 2450
Wire Wire Line
	9300 2450 9300 1500
Wire Wire Line
	8050 1500 9650 1500
Wire Wire Line
	9750 1400 9750 1600
Wire Wire Line
	9650 1500 9650 1400
Connection ~ 9300 1500
Wire Wire Line
	9850 3250 9850 1400
Wire Notes Line
	6350 2550 9150 2550
Wire Notes Line
	9150 2550 9150 4000
Wire Notes Line
	6350 4000 6350 2550
$Comp
L R R211
U 1 1 58D4D763
P 1400 4850
AR Path="/58D4647E/58D4D763" Ref="R211"  Part="1" 
AR Path="/58D5695A/58D4D763" Ref="R211"  Part="1" 
F 0 "R211" V 1480 4850 50  0000 C CNN
F 1 "DNP" V 1400 4850 50  0000 C CNN
F 2 "" V 1330 4850 50  0001 C CNN
F 3 "" H 1400 4850 50  0001 C CNN
	1    1400 4850
	1    0    0    -1  
$EndComp
$Comp
L R R214
U 1 1 58D4D769
P 1400 5450
AR Path="/58D4647E/58D4D769" Ref="R214"  Part="1" 
AR Path="/58D5695A/58D4D769" Ref="R214"  Part="1" 
F 0 "R214" V 1480 5450 50  0000 C CNN
F 1 "2M" V 1400 5450 50  0000 C CNN
F 2 "" V 1330 5450 50  0001 C CNN
F 3 "" H 1400 5450 50  0001 C CNN
	1    1400 5450
	1    0    0    -1  
$EndComp
$Comp
L R R215
U 1 1 58D4D76F
P 1750 5450
AR Path="/58D4647E/58D4D76F" Ref="R215"  Part="1" 
AR Path="/58D5695A/58D4D76F" Ref="R215"  Part="1" 
F 0 "R215" V 1830 5450 50  0000 C CNN
F 1 "2M" V 1750 5450 50  0000 C CNN
F 2 "" V 1680 5450 50  0001 C CNN
F 3 "" H 1750 5450 50  0001 C CNN
	1    1750 5450
	1    0    0    -1  
$EndComp
$Comp
L R R212
U 1 1 58D4D775
P 1750 4850
AR Path="/58D4647E/58D4D775" Ref="R212"  Part="1" 
AR Path="/58D5695A/58D4D775" Ref="R212"  Part="1" 
F 0 "R212" V 1830 4850 50  0000 C CNN
F 1 "2M" V 1750 4850 50  0000 C CNN
F 2 "" V 1680 4850 50  0001 C CNN
F 3 "" H 1750 4850 50  0001 C CNN
	1    1750 4850
	1    0    0    -1  
$EndComp
$Comp
L CONN_01X02 J203
U 1 1 58D4D77B
P 900 4850
AR Path="/58D4647E/58D4D77B" Ref="J203"  Part="1" 
AR Path="/58D5695A/58D4D77B" Ref="J203"  Part="1" 
F 0 "J203" H 900 5000 50  0000 C CNN
F 1 "CONN_01X02" V 1000 4850 50  0000 C CNN
F 2 "" H 900 4850 50  0001 C CNN
F 3 "" H 900 4850 50  0001 C CNN
	1    900  4850
	-1   0    0    -1  
$EndComp
Wire Wire Line
	1200 4900 1200 5150
Wire Wire Line
	1200 4900 1100 4900
Connection ~ 1400 5150
Wire Wire Line
	1100 4800 1100 4700
Wire Wire Line
	1100 4700 1750 4700
Connection ~ 1400 4700
Wire Wire Line
	1600 4700 1600 4550
Connection ~ 1600 4700
Wire Wire Line
	1400 5600 1750 5600
Wire Wire Line
	1600 5600 1600 5700
Connection ~ 1600 5600
$Comp
L GNDA #PWR09
U 1 1 58D4D78C
P 1600 5700
AR Path="/58D4647E/58D4D78C" Ref="#PWR09"  Part="1" 
AR Path="/58D5695A/58D4D78C" Ref="#PWR09"  Part="1" 
F 0 "#PWR09" H 1600 5450 50  0001 C CNN
F 1 "GNDA" H 1600 5550 50  0000 C CNN
F 2 "" H 1600 5700 50  0001 C CNN
F 3 "" H 1600 5700 50  0001 C CNN
	1    1600 5700
	1    0    0    -1  
$EndComp
Text GLabel 1600 4550 1    60   Input ~ 0
Vref
Connection ~ 1200 5150
Text Label 1050 5150 0    60   ~ 0
A
Text Label 1900 5150 2    60   ~ 0
B
Wire Wire Line
	1050 5150 1400 5150
Wire Wire Line
	1400 5000 1400 5300
$Comp
L AD8237 U203
U 1 1 58D4D798
P 2950 5250
AR Path="/58D4647E/58D4D798" Ref="U203"  Part="1" 
AR Path="/58D5695A/58D4D798" Ref="U203"  Part="1" 
F 0 "U203" H 3150 5400 50  0000 L CNN
F 1 "AD8237" H 3150 5100 50  0000 L CNN
F 2 "" H 2950 5250 50  0001 C CNN
F 3 "" H 2950 5250 50  0001 C CNN
	1    2950 5250
	1    0    0    -1  
$EndComp
Text Label 1850 5050 0    60   ~ 0
A
$Comp
L GNDA #PWR010
U 1 1 58D4D79F
P 2850 5550
AR Path="/58D4647E/58D4D79F" Ref="#PWR010"  Part="1" 
AR Path="/58D5695A/58D4D79F" Ref="#PWR010"  Part="1" 
F 0 "#PWR010" H 2850 5300 50  0001 C CNN
F 1 "GNDA" H 2850 5400 50  0000 C CNN
F 2 "" H 2850 5550 50  0001 C CNN
F 3 "" H 2850 5550 50  0001 C CNN
	1    2850 5550
	1    0    0    -1  
$EndComp
$Comp
L +5V #PWR011
U 1 1 58D4D7A5
P 2850 4950
AR Path="/58D4647E/58D4D7A5" Ref="#PWR011"  Part="1" 
AR Path="/58D5695A/58D4D7A5" Ref="#PWR011"  Part="1" 
F 0 "#PWR011" H 2850 4800 50  0001 C CNN
F 1 "+5V" H 2850 5090 50  0000 C CNN
F 2 "" H 2850 4950 50  0001 C CNN
F 3 "" H 2850 4950 50  0001 C CNN
	1    2850 4950
	1    0    0    -1  
$EndComp
Wire Wire Line
	2950 5550 2850 5550
$Comp
L R R217
U 1 1 58D4D7AC
P 3350 5750
AR Path="/58D4647E/58D4D7AC" Ref="R217"  Part="1" 
AR Path="/58D5695A/58D4D7AC" Ref="R217"  Part="1" 
F 0 "R217" V 3430 5750 50  0000 C CNN
F 1 "2k" V 3350 5750 50  0000 C CNN
F 2 "" V 3280 5750 50  0001 C CNN
F 3 "" H 3350 5750 50  0001 C CNN
	1    3350 5750
	0    1    1    0   
$EndComp
$Comp
L R R218
U 1 1 58D4D7B2
P 3750 5750
AR Path="/58D4647E/58D4D7B2" Ref="R218"  Part="1" 
AR Path="/58D5695A/58D4D7B2" Ref="R218"  Part="1" 
F 0 "R218" V 3830 5750 50  0000 C CNN
F 1 "97.6k" V 3750 5750 50  0000 C CNN
F 2 "" V 3680 5750 50  0001 C CNN
F 3 "" H 3750 5750 50  0001 C CNN
	1    3750 5750
	0    1    1    0   
$EndComp
Wire Wire Line
	3900 5750 3900 5250
Wire Wire Line
	3500 5750 3600 5750
Wire Wire Line
	3550 5750 3550 5550
Wire Wire Line
	3550 5550 3050 5550
Connection ~ 3550 5750
Wire Wire Line
	2950 4950 4100 4950
Wire Wire Line
	4100 4950 4100 5950
Wire Wire Line
	4100 5950 3200 5950
Wire Wire Line
	3200 5950 3200 5750
Text GLabel 3200 5950 0    60   Input ~ 0
Vref/2
Wire Wire Line
	1750 5000 1750 5300
Connection ~ 1750 5150
Wire Wire Line
	1750 5150 1900 5150
Wire Wire Line
	1900 5150 1900 5400
Wire Wire Line
	1850 5050 2050 5050
$Comp
L R R213
U 1 1 58D4D7C8
P 2450 5050
AR Path="/58D4647E/58D4D7C8" Ref="R213"  Part="1" 
AR Path="/58D5695A/58D4D7C8" Ref="R213"  Part="1" 
F 0 "R213" V 2530 5050 50  0000 C CNN
F 1 "1M" V 2450 5050 50  0000 C CNN
F 2 "" V 2380 5050 50  0001 C CNN
F 3 "" H 2450 5050 50  0001 C CNN
	1    2450 5050
	1    0    0    -1  
$EndComp
$Comp
L R R216
U 1 1 58D4D7CE
P 2450 5450
AR Path="/58D4647E/58D4D7CE" Ref="R216"  Part="1" 
AR Path="/58D5695A/58D4D7CE" Ref="R216"  Part="1" 
F 0 "R216" V 2530 5450 50  0000 C CNN
F 1 "1M" V 2450 5450 50  0000 C CNN
F 2 "" V 2380 5450 50  0001 C CNN
F 3 "" H 2450 5450 50  0001 C CNN
	1    2450 5450
	1    0    0    -1  
$EndComp
$Comp
L C C205
U 1 1 58D4D7D4
P 2200 5050
AR Path="/58D4647E/58D4D7D4" Ref="C205"  Part="1" 
AR Path="/58D5695A/58D4D7D4" Ref="C205"  Part="1" 
F 0 "C205" H 2225 5150 50  0000 L CNN
F 1 "482nF" V 2050 4900 50  0000 L CNN
F 2 "" H 2238 4900 50  0001 C CNN
F 3 "" H 2200 5050 50  0001 C CNN
	1    2200 5050
	0    1    1    0   
$EndComp
$Comp
L C C206
U 1 1 58D4D7DA
P 2200 5400
AR Path="/58D4647E/58D4D7DA" Ref="C206"  Part="1" 
AR Path="/58D5695A/58D4D7DA" Ref="C206"  Part="1" 
F 0 "C206" H 2225 5500 50  0000 L CNN
F 1 "482nF" V 2350 5150 50  0000 L CNN
F 2 "" H 2238 5250 50  0001 C CNN
F 3 "" H 2200 5400 50  0001 C CNN
	1    2200 5400
	0    1    1    0   
$EndComp
Text HLabel 4950 5350 3    60   Input ~ 0
OUTPUT1
Connection ~ 3900 5250
Wire Notes Line
	2000 4800 2700 4800
Wire Notes Line
	2000 5750 2700 5750
Text Notes 2050 4700 0    60   ~ 0
3db down @ 0.33Hz
$Comp
L CONN_01X03 J204
U 1 1 58D4D7F7
P 4950 4950
AR Path="/58D4647E/58D4D7F7" Ref="J204"  Part="1" 
AR Path="/58D5695A/58D4D7F7" Ref="J204"  Part="1" 
F 0 "J204" H 4950 5150 50  0000 C CNN
F 1 "Bypass Antialias Filter" V 5050 5100 50  0000 C CNN
F 2 "" H 4950 4950 50  0001 C CNN
F 3 "" H 4950 4950 50  0001 C CNN
	1    4950 4950
	0    -1   -1   0   
$EndComp
$Comp
L AD8629 U202
U 2 1 58D4D7FD
P 3250 7000
AR Path="/58D4647E/58D4D7FD" Ref="U202"  Part="2" 
AR Path="/58D5695A/58D4D7FD" Ref="U202"  Part="2" 
F 0 "U202" H 3450 7150 50  0000 L CNN
F 1 "AD8629" H 3450 6850 50  0000 L CNN
F 2 "" H 3250 7000 50  0001 C CNN
F 3 "" H 3250 7000 50  0001 C CNN
	2    3250 7000
	1    0    0    -1  
$EndComp
$Comp
L C C208
U 1 1 58D4D803
P 2550 7050
AR Path="/58D4647E/58D4D803" Ref="C208"  Part="1" 
AR Path="/58D5695A/58D4D803" Ref="C208"  Part="1" 
F 0 "C208" H 2575 7150 50  0000 L CNN
F 1 "910pF" H 2575 6950 50  0000 L CNN
F 2 "" H 2588 6900 50  0001 C CNN
F 3 "" H 2550 7050 50  0001 C CNN
	1    2550 7050
	1    0    0    -1  
$EndComp
$Comp
L C C207
U 1 1 58D4D809
P 3050 6450
AR Path="/58D4647E/58D4D809" Ref="C207"  Part="1" 
AR Path="/58D5695A/58D4D809" Ref="C207"  Part="1" 
F 0 "C207" H 3075 6550 50  0000 L CNN
F 1 "9.1nF" H 3075 6350 50  0000 L CNN
F 2 "" H 3088 6300 50  0001 C CNN
F 3 "" H 3050 6450 50  0001 C CNN
	1    3050 6450
	0    1    1    0   
$EndComp
$Comp
L R R220
U 1 1 58D4D80F
P 2300 6900
AR Path="/58D4647E/58D4D80F" Ref="R220"  Part="1" 
AR Path="/58D5695A/58D4D80F" Ref="R220"  Part="1" 
F 0 "R220" V 2380 6900 50  0000 C CNN
F 1 "1.15M" V 2300 6900 50  0000 C CNN
F 2 "" V 2230 6900 50  0001 C CNN
F 3 "" H 2300 6900 50  0001 C CNN
	1    2300 6900
	0    1    1    0   
$EndComp
$Comp
L R R219
U 1 1 58D4D815
P 1900 6900
AR Path="/58D4647E/58D4D815" Ref="R219"  Part="1" 
AR Path="/58D5695A/58D4D815" Ref="R219"  Part="1" 
F 0 "R219" V 1980 6900 50  0000 C CNN
F 1 "86.6k" V 1900 6900 50  0000 C CNN
F 2 "" V 1830 6900 50  0001 C CNN
F 3 "" H 1900 6900 50  0001 C CNN
	1    1900 6900
	0    1    1    0   
$EndComp
$Comp
L GNDA #PWR014
U 1 1 58D4D81B
P 3200 7250
AR Path="/58D4647E/58D4D81B" Ref="#PWR014"  Part="1" 
AR Path="/58D5695A/58D4D81B" Ref="#PWR014"  Part="1" 
F 0 "#PWR014" H 3200 7000 50  0001 C CNN
F 1 "GNDA" H 3200 7100 50  0000 C CNN
F 2 "" H 3200 7250 50  0001 C CNN
F 3 "" H 3200 7250 50  0001 C CNN
	1    3200 7250
	1    0    0    -1  
$EndComp
$Comp
L +5V #PWR015
U 1 1 58D4D821
P 3200 6750
AR Path="/58D4647E/58D4D821" Ref="#PWR015"  Part="1" 
AR Path="/58D5695A/58D4D821" Ref="#PWR015"  Part="1" 
F 0 "#PWR015" H 3200 6600 50  0001 C CNN
F 1 "+5V" H 3200 6890 50  0000 C CNN
F 2 "" H 3200 6750 50  0001 C CNN
F 3 "" H 3200 6750 50  0001 C CNN
	1    3200 6750
	1    0    0    -1  
$EndComp
$Comp
L GNDA #PWR016
U 1 1 58D4D827
P 2550 7200
AR Path="/58D4647E/58D4D827" Ref="#PWR016"  Part="1" 
AR Path="/58D5695A/58D4D827" Ref="#PWR016"  Part="1" 
F 0 "#PWR016" H 2550 6950 50  0001 C CNN
F 1 "GNDA" H 2550 7050 50  0000 C CNN
F 2 "" H 2550 7200 50  0001 C CNN
F 3 "" H 2550 7200 50  0001 C CNN
	1    2550 7200
	1    0    0    -1  
$EndComp
Wire Wire Line
	2950 7100 2800 7100
Wire Wire Line
	2800 7100 2800 7500
Wire Wire Line
	2800 7500 3900 7500
Wire Wire Line
	3900 7500 3900 6450
Wire Wire Line
	3550 7000 5050 7000
Wire Wire Line
	2050 6900 2150 6900
Wire Wire Line
	2450 6900 2950 6900
Connection ~ 2550 6900
Wire Wire Line
	2100 6900 2100 6450
Wire Wire Line
	2100 6450 2900 6450
Connection ~ 2100 6900
Wire Wire Line
	3900 6450 3200 6450
Connection ~ 3900 7000
Wire Wire Line
	1750 6900 1750 6200
Wire Wire Line
	1750 6200 4500 6200
Wire Wire Line
	4500 6200 4500 5250
Wire Wire Line
	3250 5250 4850 5250
Wire Wire Line
	4950 5150 4950 5350
Wire Wire Line
	4850 5250 4850 5150
Connection ~ 4500 5250
Wire Wire Line
	5050 7000 5050 5150
Wire Notes Line
	1550 6300 4350 6300
Wire Notes Line
	4350 6300 4350 7750
Wire Notes Line
	4350 7750 1550 7750
Wire Notes Line
	1550 7750 1550 6300
Text Notes 1550 7750 0    60   ~ 0
Chebyshev (0.23dB)\n-3dB @ 195Hz\n-50dB @ 3.1kHz
Wire Notes Line
	500  4100 5250 4100
Wire Notes Line
	5250 4100 5250 8000
Wire Wire Line
	8700 3750 7600 3750
Text Notes 8250 2200 0    60   ~ 0
G=50
Text Notes 3450 5950 0    60   ~ 0
G=50
Text Notes 9600 800  0    87   ~ 0
Channel 0
Text Notes 4450 4300 0    87   ~ 0
Channel 1
Text Notes 650  1200 0    87   ~ 0
Notes:\nR207, R208, R209, R210, R217, R218, R219, R220: 1%\nR202, R204, R205, R212, R214, R215: Metal Foil / Thin Film\nALL C: 5%
$Comp
L R R206
U 1 1 58D47410
P 7300 1700
AR Path="/58D4647E/58D47410" Ref="R206"  Part="1" 
AR Path="/58D5695A/58D47410" Ref="R206"  Part="1" 
F 0 "R206" V 7380 1700 50  0000 C CNN
F 1 "1M" V 7300 1700 50  0000 C CNN
F 2 "" V 7230 1700 50  0001 C CNN
F 3 "" H 7300 1700 50  0001 C CNN
	1    7300 1700
	1    0    0    -1  
$EndComp
$Comp
L R R203
U 1 1 58D47392
P 7300 1300
AR Path="/58D4647E/58D47392" Ref="R203"  Part="1" 
AR Path="/58D5695A/58D47392" Ref="R203"  Part="1" 
F 0 "R203" V 7380 1300 50  0000 C CNN
F 1 "1M" V 7300 1300 50  0000 C CNN
F 2 "" V 7230 1300 50  0001 C CNN
F 3 "" H 7300 1300 50  0001 C CNN
	1    7300 1300
	1    0    0    -1  
$EndComp
Wire Wire Line
	7450 1150 7450 1400
Wire Wire Line
	7150 1150 7450 1150
Wire Wire Line
	7150 1150 7150 1300
Connection ~ 7300 1150
Wire Wire Line
	7150 1700 7150 1850
Wire Wire Line
	7450 1850 7450 1600
Wire Wire Line
	7300 1450 7300 1550
Text GLabel 7200 1500 0    60   Input ~ 0
Vref/2
Wire Wire Line
	7200 1500 7300 1500
Connection ~ 7300 1500
Wire Wire Line
	6700 1700 6850 1700
Wire Wire Line
	7150 1850 7450 1850
Connection ~ 7300 1850
Wire Notes Line
	6850 2000 7500 2000
Wire Notes Line
	7500 2000 7500 1000
Wire Notes Line
	6850 1000 6850 2000
Wire Wire Line
	2450 5200 2450 5300
Wire Wire Line
	2350 5600 2650 5600
Wire Wire Line
	2650 5600 2650 5350
Wire Wire Line
	2350 4900 2650 4900
Wire Wire Line
	2650 4900 2650 5150
Wire Wire Line
	2350 5050 2350 4900
Connection ~ 2450 4900
Wire Wire Line
	2350 5400 2350 5600
Connection ~ 2450 5600
Wire Wire Line
	1900 5400 2050 5400
Text GLabel 2400 5250 0    60   Input ~ 0
Vref/2
Wire Wire Line
	2400 5250 2450 5250
Connection ~ 2450 5250
Wire Notes Line
	2000 4800 2000 5750
Wire Notes Line
	2700 5750 2700 4800
$Comp
L +5V #PWR?
U 1 1 58D5ECAF
P 7450 5100
F 0 "#PWR?" H 7450 4950 50  0001 C CNN
F 1 "+5V" H 7450 5240 50  0000 C CNN
F 2 "" H 7450 5100 50  0001 C CNN
F 3 "" H 7450 5100 50  0001 C CNN
	1    7450 5100
	1    0    0    -1  
$EndComp
$Comp
L GNDA #PWR?
U 1 1 58D5ED2F
P 7450 5400
F 0 "#PWR?" H 7450 5150 50  0001 C CNN
F 1 "GNDA" H 7450 5250 50  0000 C CNN
F 2 "" H 7450 5400 50  0001 C CNN
F 3 "" H 7450 5400 50  0001 C CNN
	1    7450 5400
	1    0    0    -1  
$EndComp
$Comp
L C C?
U 1 1 58D5F9F5
P 7450 5250
F 0 "C?" H 7475 5350 50  0000 L CNN
F 1 "C" H 7475 5150 50  0000 L CNN
F 2 "" H 7488 5100 50  0001 C CNN
F 3 "" H 7450 5250 50  0001 C CNN
	1    7450 5250
	1    0    0    -1  
$EndComp
$Comp
L C C?
U 1 1 58D5FAD9
P 7700 5250
F 0 "C?" H 7725 5350 50  0000 L CNN
F 1 "C" H 7725 5150 50  0000 L CNN
F 2 "" H 7738 5100 50  0001 C CNN
F 3 "" H 7700 5250 50  0001 C CNN
	1    7700 5250
	1    0    0    -1  
$EndComp
$Comp
L C C?
U 1 1 58D5FB61
P 7950 5250
F 0 "C?" H 7975 5350 50  0000 L CNN
F 1 "C" H 7975 5150 50  0000 L CNN
F 2 "" H 7988 5100 50  0001 C CNN
F 3 "" H 7950 5250 50  0001 C CNN
	1    7950 5250
	1    0    0    -1  
$EndComp
Wire Wire Line
	7450 5100 7950 5100
Connection ~ 7700 5100
Wire Wire Line
	7450 5400 7950 5400
Connection ~ 7700 5400
Connection ~ 7450 5400
Connection ~ 7450 5100
Text Notes 6400 4000 0    60   ~ 0
Chebyshev (0.23dB)\n-3dB @ 195Hz\n-50dB @ 3.1kHz
Wire Notes Line
	9150 4000 6350 4000
Wire Notes Line
	5350 500  5350 4050
Wire Notes Line
	5350 4050 10550 4050
$EndSCHEMATC