uMod-EC.sch-bak
EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 1 1
Title "MOD-EC"
Date "2020-12-10"
Rev "1"
Comp "uFire LLC"
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L Device:C_Small C1
U 1 1 5EB7A5D1
P 10800 3800
F 0 "C1" H 10892 3846 50  0000 L CNN
F 1 "1uF" H 10892 3755 50  0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric" H 10800 3800 50  0001 C CNN
F 3 "~" H 10800 3800 50  0001 C CNN
	1    10800 3800
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0102
U 1 1 5EB7B6FD
P 10800 3900
F 0 "#PWR0102" H 10800 3650 50  0001 C CNN
F 1 "GND" H 10804 3745 50  0000 C CNN
F 2 "" H 10800 3900 50  0001 C CNN
F 3 "" H 10800 3900 50  0001 C CNN
	1    10800 3900
	1    0    0    -1  
$EndComp
$Comp
L uMod-EC-rescue:ATSAMD21E18A-MU-ATSAMD21E18A-MU-uMod-pH-rescue U1
U 1 1 5EBADA19
P 9200 4800
F 0 "U1" H 9200 6167 50  0000 C CNN
F 1 "ATSAMD21E18A-MU" H 9200 6076 50  0000 C CNN
F 2 "Package_DFN_QFN:QFN50P500X500X100-33N" H 9200 4800 50  0001 L BNN
F 3 "29698" H 9200 4800 50  0001 L BNN
F 4 "IPC 7351B" H 9200 4800 50  0001 L BNN "Field4"
F 5 "C" H 9200 4800 50  0001 L BNN "Field5"
F 6 "Microchip" H 9200 4800 50  0001 L BNN "Field6"
	1    9200 4800
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0104
U 1 1 5EBCB2B4
P 10000 5850
F 0 "#PWR0104" H 10000 5600 50  0001 C CNN
F 1 "GND" H 10004 5695 50  0000 C CNN
F 2 "" H 10000 5850 50  0001 C CNN
F 3 "" H 10000 5850 50  0001 C CNN
	1    10000 5850
	1    0    0    -1  
$EndComp
Wire Wire Line
	9900 5800 10000 5800
Wire Wire Line
	10000 5800 10000 5850
Wire Wire Line
	9900 5700 10000 5700
Wire Wire Line
	10000 5700 10000 5800
Connection ~ 10000 5800
Text GLabel 9900 4400 2    50   Input ~ 0
SWC
Text GLabel 9900 4300 2    50   Input ~ 0
SWD
$Comp
L Connector:Conn_01x06_Female J5
U 1 1 5F926647
P 2500 6700
F 0 "J5" H 2528 6676 50  0000 L CNN
F 1 "RIGHT" H 2528 6585 50  0000 L CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical" H 2500 6700 50  0001 C CNN
F 3 "~" H 2500 6700 50  0001 C CNN
	1    2500 6700
	1    0    0    -1  
$EndComp
$Comp
L Connector:Conn_01x06_Female J4
U 1 1 5F927571
P 1600 6700
F 0 "J4" H 1628 6676 50  0000 L CNN
F 1 "LEFT" H 1628 6585 50  0000 L CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical" H 1600 6700 50  0001 C CNN
F 3 "~" H 1600 6700 50  0001 C CNN
	1    1600 6700
	1    0    0    -1  
$EndComp
Text GLabel 2300 6500 0    50   Input ~ 0
GND
Text GLabel 2300 6700 0    50   Input ~ 0
SDA
Text GLabel 2300 6800 0    50   Input ~ 0
SCL
Text GLabel 1400 6900 0    50   Input ~ 0
USB_D-
Text GLabel 1400 7000 0    50   Input ~ 0
USB_D+
Text GLabel 1400 6800 0    50   Input ~ 0
1_WIRE
Text GLabel 1400 6500 0    50   Input ~ 0
PROBE_1
Text GLabel 1400 6600 0    50   Input ~ 0
PROBE_2
Text GLabel 1400 6700 0    50   Input ~ 0
PROBE_3
$Comp
L power:VCC #PWR0101
U 1 1 5FA45BAD
P 10250 3600
F 0 "#PWR0101" H 10250 3450 50  0001 C CNN
F 1 "VCC" H 10265 3773 50  0000 C CNN
F 2 "" H 10250 3600 50  0001 C CNN
F 3 "" H 10250 3600 50  0001 C CNN
	1    10250 3600
	1    0    0    -1  
$EndComp
Text GLabel 9900 4800 2    50   Input ~ 0
USB_D-
Text GLabel 9900 4700 2    50   Input ~ 0
USB_D+
Text GLabel 9900 4900 2    50   Input ~ 0
UART_RX
Text GLabel 9900 5000 2    50   Input ~ 0
UART_TX
Text GLabel 8500 5200 0    50   Input ~ 0
SCL
Text GLabel 8500 5100 0    50   Input ~ 0
SDA
Text GLabel 8500 4500 0    50   Input ~ 0
A0_D1
Text GLabel 8500 4900 0    50   Input ~ 0
A1_D2
Text GLabel 8500 4800 0    50   Input ~ 0
A2_D3
Text GLabel 8500 5000 0    50   Input ~ 0
A3_D4
Text GLabel 8500 4300 0    50   Input ~ 0
A4_D5
Text GLabel 8500 4400 0    50   Input ~ 0
A5_D6
Text GLabel 8500 4700 0    50   Input ~ 0
D7
$Comp
L Device:C_Small C2
U 1 1 5FB9A268
P 10250 4000
F 0 "C2" H 10342 4046 50  0000 L CNN
F 1 "10uF" H 10342 3955 50  0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric" H 10250 4000 50  0001 C CNN
F 3 "~" H 10250 4000 50  0001 C CNN
	1    10250 4000
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR01
U 1 1 5FB9A653
P 10250 4100
F 0 "#PWR01" H 10250 3850 50  0001 C CNN
F 1 "GND" H 10254 3945 50  0000 C CNN
F 2 "" H 10250 4100 50  0001 C CNN
F 3 "" H 10250 4100 50  0001 C CNN
	1    10250 4100
	1    0    0    -1  
$EndComp
Wire Wire Line
	9900 3700 10800 3700
Wire Wire Line
	10250 3600 10250 3800
Wire Wire Line
	9900 3800 10250 3800
Connection ~ 10250 3800
Wire Wire Line
	10250 3800 10250 3900
Wire Wire Line
	9900 3900 10250 3900
Connection ~ 10250 3900
$Comp
L Connector:Conn_01x02_Male J2
U 1 1 5FBAB637
P 3350 6900
F 0 "J2" H 3458 7081 50  0000 C CNN
F 1 "Conn_01x02_Male" H 3458 6990 50  0000 C CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical" H 3350 6900 50  0001 C CNN
F 3 "~" H 3350 6900 50  0001 C CNN
	1    3350 6900
	1    0    0    -1  
$EndComp
Text GLabel 3550 6900 2    50   Input ~ 0
SWD
Text GLabel 3550 7000 2    50   Input ~ 0
SWC
Text GLabel 2300 7000 0    50   Input ~ 0
UART_TX
Text GLabel 2300 6900 0    50   Input ~ 0
UART_RX
Text GLabel 2300 6600 0    50   Input ~ 0
VCC
$Comp
L ADG704:ADG704 IC1
U 1 1 5FD2FFA6
P 3050 3500
F 0 "IC1" H 3200 3450 50  0000 L CNN
F 1 "ADG704" H 3150 3350 50  0000 L CNN
F 2 "ADG704:SO10" H 3050 3500 50  0001 L BNN
F 3 "" H 3050 3500 50  0001 L BNN
	1    3050 3500
	1    0    0    -1  
$EndComp
$Comp
L ADM8829:ADM8829ARTZ-REEL U3
U 1 1 5FD32131
P 2100 5350
F 0 "U3" H 2100 6120 50  0000 C CNN
F 1 "ADM8829ARTZ-REEL" H 2100 6029 50  0000 C CNN
F 2 "ADM8829:SOT95P280X145-6N" H 2100 5350 50  0001 L BNN
F 3 "" H 2100 5350 50  0001 L BNN
F 4 "Analog Devices" H 2100 5350 50  0001 L BNN "Manufacturer"
F 5 "SOT95P280X145-6N" H 2100 5350 50  0001 L BNN "Package"
	1    2100 5350
	1    0    0    -1  
$EndComp
Text GLabel 2800 5750 2    50   Input ~ 0
GND
Text GLabel 2800 4850 2    50   Input ~ 0
VCC
$Comp
L Device:C_Small C3
U 1 1 5FD3517F
P 900 5450
F 0 "C3" H 992 5496 50  0000 L CNN
F 1 "1uF" H 992 5405 50  0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric" H 900 5450 50  0001 C CNN
F 3 "~" H 900 5450 50  0001 C CNN
	1    900  5450
	1    0    0    -1  
$EndComp
Wire Wire Line
	1400 5350 900  5350
Wire Wire Line
	1400 5550 900  5550
$Comp
L Device:C_Small C4
U 1 1 5FD361A1
P 3150 5050
F 0 "C4" H 3242 5096 50  0000 L CNN
F 1 "1uF" H 3242 5005 50  0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric" H 3150 5050 50  0001 C CNN
F 3 "~" H 3150 5050 50  0001 C CNN
	1    3150 5050
	1    0    0    -1  
$EndComp
Wire Wire Line
	2800 4950 3150 4950
Text GLabel 3150 5150 0    50   Input ~ 0
GND
Text GLabel 3550 4950 2    50   Input ~ 0
-3.3_VCC
Wire Wire Line
	3550 4950 3150 4950
Connection ~ 3150 4950
$Comp
L Amplifier_Operational:TL074 U2
U 1 1 5FD3A542
P 1750 1350
F 0 "U2" H 1750 1717 50  0000 C CNN
F 1 "TL074" H 1750 1626 50  0000 C CNN
F 2 "Package_SO:SOIC-14_3.9x8.7mm_P1.27mm" H 1700 1450 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/tl071.pdf" H 1800 1550 50  0001 C CNN
	1    1750 1350
	1    0    0    -1  
$EndComp
$Comp
L Amplifier_Operational:TL074 U2
U 2 1 5FD3B6B3
P 3000 1450
F 0 "U2" H 3000 1817 50  0000 C CNN
F 1 "TL074" H 3000 1726 50  0000 C CNN
F 2 "Package_SO:SOIC-14_3.9x8.7mm_P1.27mm" H 2950 1550 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/tl071.pdf" H 3050 1650 50  0001 C CNN
	2    3000 1450
	1    0    0    -1  
$EndComp
$Comp
L Amplifier_Operational:TL074 U2
U 3 1 5FD3C723
P 3900 1550
F 0 "U2" H 3900 1917 50  0000 C CNN
F 1 "TL074" H 3900 1826 50  0000 C CNN
F 2 "Package_SO:SOIC-14_3.9x8.7mm_P1.27mm" H 3850 1650 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/tl071.pdf" H 3950 1750 50  0001 C CNN
	3    3900 1550
	1    0    0    -1  
$EndComp
$Comp
L Amplifier_Operational:TL074 U2
U 4 1 5FD3DFE2
P 5000 1650
F 0 "U2" H 5000 2017 50  0000 C CNN
F 1 "TL074" H 5000 1926 50  0000 C CNN
F 2 "Package_SO:SOIC-14_3.9x8.7mm_P1.27mm" H 4950 1750 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/tl071.pdf" H 5050 1850 50  0001 C CNN
	4    5000 1650
	1    0    0    -1  
$EndComp
$Comp
L Amplifier_Operational:TL074 U2
U 5 1 5FD3E9AA
P 700 1650
F 0 "U2" H 658 1696 50  0000 L CNN
F 1 "TL074" H 658 1605 50  0000 L CNN
F 2 "Package_SO:SOIC-14_3.9x8.7mm_P1.27mm" H 650 1750 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/tl071.pdf" H 750 1850 50  0001 C CNN
	5    700  1650
	1    0    0    -1  
$EndComp
$Comp
L Device:R_Small_US R4
U 1 1 5FD40B02
P 2200 3250
F 0 "R4" V 1995 3250 50  0000 C CNN
F 1 "1M" V 2086 3250 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" H 2200 3250 50  0001 C CNN
F 3 "~" H 2200 3250 50  0001 C CNN
	1    2200 3250
	0    1    1    0   
$EndComp
$Comp
L Device:R_Small_US R2
U 1 1 5FD42CB9
P 1700 3450
F 0 "R2" V 1500 3250 50  0000 C CNN
F 1 "1K" V 1600 3250 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" H 1700 3450 50  0001 C CNN
F 3 "~" H 1700 3450 50  0001 C CNN
	1    1700 3450
	0    1    1    0   
$EndComp
$Comp
L Device:R_Small_US R1
U 1 1 5FD4314F
P 1450 3550
F 0 "R1" V 1250 3300 50  0000 C CNN
F 1 "100" V 1350 3300 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" H 1450 3550 50  0001 C CNN
F 3 "~" H 1450 3550 50  0001 C CNN
	1    1450 3550
	0    1    1    0   
$EndComp
Wire Wire Line
	2400 3250 2300 3250
Text GLabel 2400 3850 0    50   Input ~ 0
S_A1
$Comp
L Device:R_Small_US R3
U 1 1 5FD41356
P 1950 3350
F 0 "R3" V 2150 3600 50  0000 C CNN
F 1 "100K" V 2050 3600 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" H 1950 3350 50  0001 C CNN
F 3 "~" H 1950 3350 50  0001 C CNN
	1    1950 3350
	0    -1   -1   0   
$EndComp
Text GLabel 3050 2750 2    50   Input ~ 0
VCC
Text GLabel 3050 4200 0    50   Input ~ 0
GND
Text GLabel 2400 3950 0    50   Input ~ 0
VCC
Text GLabel 1350 3550 0    50   Input ~ 0
RES_IN
Text GLabel 1600 3450 0    50   Input ~ 0
RES_IN
Text GLabel 1850 3350 0    50   Input ~ 0
RES_IN
Text GLabel 2100 3250 0    50   Input ~ 0
RES_IN
Wire Wire Line
	2400 3350 2050 3350
Wire Wire Line
	1800 3450 2400 3450
Wire Wire Line
	2400 3550 1550 3550
Text GLabel 3700 3400 2    50   Input ~ 0
RES_OUT
Text GLabel 600  1350 2    50   Input ~ 0
VCC
Text GLabel 600  1950 2    50   Input ~ 0
-3.3_VCC
Text GLabel 1450 1250 0    50   Input ~ 0
OSC_IN
$Comp
L Device:R_Small_US R5
U 1 1 5FD591C4
P 1350 1450
F 0 "R5" V 1450 1450 50  0000 C CNN
F 1 "10K" V 1250 1450 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" H 1350 1450 50  0001 C CNN
F 3 "~" H 1350 1450 50  0001 C CNN
	1    1350 1450
	0    -1   -1   0   
$EndComp
Text GLabel 1150 1450 0    50   Input ~ 0
VCC
$Comp
L Device:R_Small_US R6
U 1 1 5FD59B1E
P 1950 1700
F 0 "R6" V 2050 1700 50  0000 C CNN
F 1 "10K" V 1850 1700 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" H 1950 1700 50  0001 C CNN
F 3 "~" H 1950 1700 50  0001 C CNN
	1    1950 1700
	0    -1   -1   0   
$EndComp
Wire Wire Line
	1150 1450 1250 1450
Wire Wire Line
	1850 1700 1250 1700
Wire Wire Line
	1250 1700 1250 1450
Connection ~ 1250 1450
Wire Wire Line
	2050 1350 2050 1700
$Comp
L Device:R_Small_US R7
U 1 1 5FD659A4
P 2250 1350
F 0 "R7" V 2350 1350 50  0000 C CNN
F 1 "100K" V 2150 1350 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" H 2250 1350 50  0001 C CNN
F 3 "~" H 2250 1350 50  0001 C CNN
	1    2250 1350
	0    -1   -1   0   
$EndComp
Wire Wire Line
	2050 1350 2150 1350
Connection ~ 2050 1350
$Comp
L Device:R_Small_US R8
U 1 1 5FD68632
P 2350 1050
F 0 "R8" V 2450 1050 50  0000 C CNN
F 1 "1K" V 2250 1050 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" H 2350 1050 50  0001 C CNN
F 3 "~" H 2350 1050 50  0001 C CNN
	1    2350 1050
	1    0    0    -1  
$EndComp
Text GLabel 2350 850  2    50   Input ~ 0
GND
Wire Wire Line
	2350 950  2350 850 
Wire Wire Line
	2350 1150 2350 1350
Connection ~ 2350 1350
Text GLabel 2500 1550 0    50   Input ~ 0
RES_IN
Text GLabel 2500 1650 0    50   Input ~ 0
PROBE_1
Wire Wire Line
	2350 1350 2700 1350
Connection ~ 2600 1550
Wire Wire Line
	2550 1550 2600 1550
Wire Wire Line
	2500 1650 2600 1650
Wire Wire Line
	2500 1550 2600 1550
Wire Wire Line
	2600 1550 2600 1650
Wire Wire Line
	2600 1550 2700 1550
Wire Wire Line
	3300 1450 3450 1450
Wire Wire Line
	3600 1650 3500 1650
Wire Wire Line
	3500 1650 3500 1850
Wire Wire Line
	3500 1850 4350 1850
Wire Wire Line
	4350 1850 4350 1550
Wire Wire Line
	4350 1550 4200 1550
Wire Wire Line
	4350 1550 4700 1550
Connection ~ 4350 1550
$Comp
L Device:D_Schottky D1
U 1 1 5FD7BF52
P 5500 1650
F 0 "D1" H 5500 1433 50  0000 C CNN
F 1 "D_Schottky" H 5500 1524 50  0000 C CNN
F 2 "Diode_SMD:D_0805_2012Metric" H 5500 1650 50  0001 C CNN
F 3 "SD0805S040S0R1" H 5500 1650 50  0001 C CNN
	1    5500 1650
	-1   0    0    1   
$EndComp
Wire Wire Line
	4700 1750 4650 1750
Wire Wire Line
	4650 1750 4650 1950
Wire Wire Line
	4650 1950 5750 1950
Wire Wire Line
	5750 1950 5750 1650
Wire Wire Line
	5750 1650 5650 1650
Wire Wire Line
	5350 1650 5300 1650
$Comp
L Device:R_Small_US R9
U 1 1 5FD7EF68
P 6050 1750
F 0 "R9" V 6150 1750 50  0000 C CNN
F 1 "100K" V 5950 1750 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" H 6050 1750 50  0001 C CNN
F 3 "~" H 6050 1750 50  0001 C CNN
	1    6050 1750
	1    0    0    -1  
$EndComp
$Comp
L Device:C_Small C5
U 1 1 5FD7F897
P 6300 1750
F 0 "C5" H 6392 1796 50  0000 L CNN
F 1 "100nF" H 6392 1705 50  0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric" H 6300 1750 50  0001 C CNN
F 3 "~" H 6300 1750 50  0001 C CNN
	1    6300 1750
	1    0    0    -1  
$EndComp
Text GLabel 6050 2150 0    50   Input ~ 0
GND
Wire Wire Line
	6050 1850 6050 2050
Wire Wire Line
	6300 1850 6300 2050
Wire Wire Line
	6300 2050 6050 2050
Connection ~ 6050 2050
Wire Wire Line
	6050 2050 6050 2150
Wire Wire Line
	5750 1650 6050 1650
Connection ~ 5750 1650
Wire Wire Line
	6300 1650 6050 1650
Connection ~ 6050 1650
Text GLabel 3350 850  0    50   Input ~ 0
RES_OUT
Wire Wire Line
	3350 850  3450 850 
Wire Wire Line
	3450 850  3450 1450
Connection ~ 3450 1450
Wire Wire Line
	3450 1450 3600 1450
Text GLabel 4100 5800 0    50   Input ~ 0
GND
Text GLabel 4350 5800 2    50   Input ~ 0
PROBE_2
Wire Wire Line
	4100 5800 4350 5800
Text GLabel 6900 1650 2    50   Input ~ 0
V_OUT
Wire Wire Line
	6900 1650 6300 1650
Connection ~ 6300 1650
Text GLabel 7200 4800 0    50   Input ~ 0
OSC_IN
Text GLabel 7200 4950 0    50   Input ~ 0
V_OUT
Text GLabel 2400 3750 0    50   Input ~ 0
S_A0
Text GLabel 7200 4550 0    50   Input ~ 0
S_A0
Text GLabel 7200 4700 0    50   Input ~ 0
S_A1
Text GLabel 7300 4800 2    50   Input ~ 0
A3_D4
Wire Wire Line
	7300 4950 7200 4950
Text GLabel 7300 4950 2    50   Input ~ 0
A0_D1
Wire Wire Line
	7200 4800 7300 4800
$EndSCHEMATC