EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 3 3
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
Wire Wire Line
	5950 3350 5950 3000
Connection ~ 5900 3600
Wire Wire Line
	6200 3600 6200 3500
Wire Wire Line
	5900 3600 6200 3600
Wire Wire Line
	4850 3950 4850 4050
Wire Wire Line
	4850 4350 4850 4450
$Comp
L power:GND #PWR?
U 1 1 60A50686
P 4850 4450
AR Path="/60A50686" Ref="#PWR?"  Part="1" 
AR Path="/60A4A1AA/60A50686" Ref="#PWR036"  Part="1" 
F 0 "#PWR036" H 4850 4200 50  0001 C CNN
F 1 "GND" H 4855 4277 50  0000 C CNN
F 2 "" H 4850 4450 50  0001 C CNN
F 3 "" H 4850 4450 50  0001 C CNN
	1    4850 4450
	1    0    0    -1  
$EndComp
$Comp
L Device:R_POT_TRIM RV?
U 1 1 60A50680
P 4850 4200
AR Path="/60A50680" Ref="RV?"  Part="1" 
AR Path="/60A4A1AA/60A50680" Ref="RV1"  Part="1" 
F 0 "RV1" H 4780 4154 50  0000 R CNN
F 1 "R_POT_TRIM" H 4780 4245 50  0000 R CNN
F 2 "Potentiometer_SMD:Potentiometer_Bourns_3314J_Vertical" H 4850 4200 50  0001 C CNN
F 3 "~" H 4850 4200 50  0001 C CNN
	1    4850 4200
	-1   0    0    1   
$EndComp
$Comp
L Device:R R?
U 1 1 60A50679
P 4850 3800
AR Path="/60A50679" Ref="R?"  Part="1" 
AR Path="/60A4A1AA/60A50679" Ref="R7"  Part="1" 
F 0 "R7" H 4920 3846 50  0000 L CNN
F 1 "R" H 4920 3755 50  0000 L CNN
F 2 "Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder" V 4780 3800 50  0001 C CNN
F 3 "~" H 4850 3800 50  0001 C CNN
	1    4850 3800
	1    0    0    -1  
$EndComp
Wire Wire Line
	4850 3650 4850 3500
Wire Wire Line
	4850 3500 5300 3500
$Comp
L Amplifier_Operational:LTC6081xMS8 U?
U 3 1 60A5066F
P 5800 1800
AR Path="/60A5066F" Ref="U?"  Part="3" 
AR Path="/60A4A1AA/60A5066F" Ref="U2"  Part="3" 
F 0 "U2" H 5758 1846 50  0000 L CNN
F 1 "LTC6081xMS8" H 5758 1755 50  0000 L CNN
F 2 "Package_SO:MSOP-8_3x3mm_P0.65mm" H 5800 1800 50  0001 C CNN
F 3 "https://www.analog.com/media/en/technical-documentation/data-sheets/60812fd.pdf" H 5800 1800 50  0001 C CNN
	3    5800 1800
	1    0    0    -1  
$EndComp
Wire Wire Line
	5900 3900 5900 3600
Wire Wire Line
	5150 3900 5900 3900
Wire Wire Line
	5150 3700 5150 3900
Wire Wire Line
	5300 3700 5150 3700
$Comp
L Amplifier_Operational:LTC6081xMS8 U?
U 2 1 60A50665
P 6850 3700
AR Path="/60A50665" Ref="U?"  Part="2" 
AR Path="/60A4A1AA/60A50665" Ref="U2"  Part="2" 
F 0 "U2" H 6850 4067 50  0000 C CNN
F 1 "LTC6081xMS8" H 6850 3976 50  0000 C CNN
F 2 "Package_SO:MSOP-8_3x3mm_P0.65mm" H 6850 3700 50  0001 C CNN
F 3 "https://www.analog.com/media/en/technical-documentation/data-sheets/60812fd.pdf" H 6850 3700 50  0001 C CNN
	2    6850 3700
	1    0    0    -1  
$EndComp
$Comp
L Amplifier_Operational:LTC6081xMS8 U?
U 1 1 60A5065F
P 5600 3600
AR Path="/60A5065F" Ref="U?"  Part="1" 
AR Path="/60A4A1AA/60A5065F" Ref="U2"  Part="1" 
F 0 "U2" H 5600 3967 50  0000 C CNN
F 1 "LTC6081xMS8" H 5600 3876 50  0000 C CNN
F 2 "Package_SO:MSOP-8_3x3mm_P0.65mm" H 5600 3600 50  0001 C CNN
F 3 "https://www.analog.com/media/en/technical-documentation/data-sheets/60812fd.pdf" H 5600 3600 50  0001 C CNN
	1    5600 3600
	1    0    0    -1  
$EndComp
$Comp
L Device:R R?
U 1 1 60A6F52E
P 6500 4250
AR Path="/60A6F52E" Ref="R?"  Part="1" 
AR Path="/60A4A1AA/60A6F52E" Ref="R8"  Part="1" 
F 0 "R8" H 6350 4300 50  0000 L CNN
F 1 "R" H 6350 4200 50  0000 L CNN
F 2 "Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder" V 6430 4250 50  0001 C CNN
F 3 "~" H 6500 4250 50  0001 C CNN
	1    6500 4250
	1    0    0    -1  
$EndComp
$Comp
L Device:R R?
U 1 1 60A706BD
P 6800 4100
AR Path="/60A706BD" Ref="R?"  Part="1" 
AR Path="/60A4A1AA/60A706BD" Ref="R9"  Part="1" 
F 0 "R9" V 6950 4050 50  0000 L CNN
F 1 "R" V 6870 4055 50  0000 L CNN
F 2 "Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder" V 6730 4100 50  0001 C CNN
F 3 "~" H 6800 4100 50  0001 C CNN
	1    6800 4100
	0    1    1    0   
$EndComp
Wire Wire Line
	7350 4100 7350 3700
Wire Wire Line
	6650 4100 6500 4100
Wire Wire Line
	6500 4100 6500 3800
Wire Wire Line
	6500 3800 6550 3800
Connection ~ 6500 4100
$Comp
L power:GND #PWR?
U 1 1 60A78C7C
P 5700 2100
AR Path="/60A78C7C" Ref="#PWR?"  Part="1" 
AR Path="/60A4A1AA/60A78C7C" Ref="#PWR040"  Part="1" 
F 0 "#PWR040" H 5700 1850 50  0001 C CNN
F 1 "GND" H 5705 1927 50  0000 C CNN
F 2 "" H 5700 2100 50  0001 C CNN
F 3 "" H 5700 2100 50  0001 C CNN
	1    5700 2100
	1    0    0    -1  
$EndComp
$Comp
L power:+5V #PWR039
U 1 1 60A79766
P 5700 1450
F 0 "#PWR039" H 5700 1300 50  0001 C CNN
F 1 "+5V" H 5715 1623 50  0000 C CNN
F 2 "" H 5700 1450 50  0001 C CNN
F 3 "" H 5700 1450 50  0001 C CNN
	1    5700 1450
	1    0    0    -1  
$EndComp
Wire Wire Line
	5700 1450 5700 1500
$Comp
L Device:C C13
U 1 1 60A7A5D1
P 5450 1750
F 0 "C13" H 5250 1750 50  0000 L CNN
F 1 "100n" H 5250 1650 50  0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder" H 5488 1600 50  0001 C CNN
F 3 "~" H 5450 1750 50  0001 C CNN
	1    5450 1750
	1    0    0    -1  
$EndComp
$Comp
L Device:CP C12
U 1 1 60A7AFCD
P 5100 1750
F 0 "C12" H 4850 1750 50  0000 L CNN
F 1 "10u" H 4850 1650 50  0000 L CNN
F 2 "Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder" H 5138 1600 50  0001 C CNN
F 3 "~" H 5100 1750 50  0001 C CNN
	1    5100 1750
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR?
U 1 1 60A7CA7C
P 5450 2100
AR Path="/60A7CA7C" Ref="#PWR?"  Part="1" 
AR Path="/60A4A1AA/60A7CA7C" Ref="#PWR038"  Part="1" 
F 0 "#PWR038" H 5450 1850 50  0001 C CNN
F 1 "GND" H 5455 1927 50  0000 C CNN
F 2 "" H 5450 2100 50  0001 C CNN
F 3 "" H 5450 2100 50  0001 C CNN
	1    5450 2100
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR?
U 1 1 60A7CD69
P 5100 2100
AR Path="/60A7CD69" Ref="#PWR?"  Part="1" 
AR Path="/60A4A1AA/60A7CD69" Ref="#PWR037"  Part="1" 
F 0 "#PWR037" H 5100 1850 50  0001 C CNN
F 1 "GND" H 5105 1927 50  0000 C CNN
F 2 "" H 5100 2100 50  0001 C CNN
F 3 "" H 5100 2100 50  0001 C CNN
	1    5100 2100
	1    0    0    -1  
$EndComp
Wire Wire Line
	5100 2100 5100 1900
Wire Wire Line
	5450 2100 5450 1900
Wire Wire Line
	5100 1500 5450 1500
Wire Wire Line
	5450 1500 5450 1600
Wire Wire Line
	5100 1500 5100 1600
Wire Wire Line
	5700 1500 5450 1500
Connection ~ 5700 1500
Connection ~ 5450 1500
Wire Wire Line
	6500 3350 6500 3600
$Comp
L power:GND #PWR?
U 1 1 60A8D5C2
P 6500 4450
AR Path="/60A8D5C2" Ref="#PWR?"  Part="1" 
AR Path="/60A4A1AA/60A8D5C2" Ref="#PWR041"  Part="1" 
F 0 "#PWR041" H 6500 4200 50  0001 C CNN
F 1 "GND" H 6505 4277 50  0000 C CNN
F 2 "" H 6500 4450 50  0001 C CNN
F 3 "" H 6500 4450 50  0001 C CNN
	1    6500 4450
	1    0    0    -1  
$EndComp
Wire Wire Line
	6500 4450 6500 4400
$Comp
L Device:R_POT_TRIM RV?
U 1 1 60A8E422
P 7100 4100
AR Path="/60A8E422" Ref="RV?"  Part="1" 
AR Path="/60A4A1AA/60A8E422" Ref="RV2"  Part="1" 
F 0 "RV2" V 7300 4300 50  0000 R CNN
F 1 "R_POT_TRIM" V 7400 4450 50  0000 R CNN
F 2 "Potentiometer_SMD:Potentiometer_Bourns_3314J_Vertical" H 7100 4100 50  0001 C CNN
F 3 "~" H 7100 4100 50  0001 C CNN
	1    7100 4100
	0    1    1    0   
$EndComp
Wire Wire Line
	7150 3700 7350 3700
Wire Wire Line
	7350 4100 7300 4100
Wire Wire Line
	7100 4250 7300 4250
Wire Wire Line
	7300 4250 7300 4100
Connection ~ 7300 4100
Wire Wire Line
	7300 4100 7250 4100
Wire Wire Line
	7350 3700 7350 3000
Connection ~ 7350 3700
Wire Wire Line
	6500 3600 6550 3600
Wire Wire Line
	7350 3000 5950 3000
Text GLabel 7350 3000 2    50   Input ~ 0
FORCE_SENSOR_ADC
$Comp
L Jumper:SolderJumper_3_Open JP4
U 1 1 60A67FC5
P 6200 3350
F 0 "JP4" H 6200 3555 50  0000 C CNN
F 1 "SolderJumper_3_Open" H 6200 3464 50  0000 C CNN
F 2 "Jumper:SolderJumper-3_P1.3mm_Open_RoundedPad1.0x1.5mm" H 6200 3350 50  0001 C CNN
F 3 "~" H 6200 3350 50  0001 C CNN
	1    6200 3350
	1    0    0    -1  
$EndComp
Wire Wire Line
	5950 3350 6000 3350
Wire Wire Line
	6400 3350 6500 3350
Text GLabel 4700 3500 0    50   Input ~ 0
FORCE_SENSOR_IN
Wire Wire Line
	4700 3500 4850 3500
Connection ~ 4850 3500
Wire Wire Line
	4700 4200 4700 4050
Wire Wire Line
	4700 4050 4850 4050
Connection ~ 4850 4050
$EndSCHEMATC