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Ref_V.sch
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EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 5 5
Title "Driverboard"
Date "2020-05-20"
Rev "V1.0"
Comp "UMC Utrecht"
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
Text HLabel 6000 4350 2 50 Output ~ 0
Ref_V-
Text HLabel 6000 4750 2 50 Output ~ 0
Ref_V+
Text HLabel 3700 2600 0 50 Input ~ 0
-5V
Text HLabel 3700 2900 0 50 Input ~ 0
GND
$Comp
L Reference_Voltage:LM4041LP-ADJ U2
U 1 1 5DD784DC
P 4250 4050
F 0 "U2" V 4296 3963 50 0000 R CNN
F 1 "LM4041DYM3-ADJ-TR" V 4205 3963 50 0000 R CNN
F 2 "Package_TO_SOT_SMD:SOT-23" H 4250 3850 50 0001 C CIN
F 3 "http://www.ti.com/lit/ds/symlink/lm4041-n.pdf" H 4350 4200 50 0001 C CIN
1 4250 4050
0 1 -1 0
$EndComp
$Comp
L Device:R_Small R31
U 1 1 5DD784EC
P 4650 3900
F 0 "R31" V 4454 3900 50 0000 C CNN
F 1 "6.8k" V 4545 3900 50 0000 C CNN
F 2 "Resistor_SMD:R_0805_2012Metric" H 4650 3900 50 0001 C CNN
F 3 "~" H 4650 3900 50 0001 C CNN
1 4650 3900
-1 0 0 1
$EndComp
$Comp
L Device:R_Small R32
U 1 1 5DD784F2
P 4650 4200
F 0 "R32" V 4454 4200 50 0000 C CNN
F 1 "8.2k" V 4545 4200 50 0000 C CNN
F 2 "Resistor_SMD:R_0805_2012Metric" H 4650 4200 50 0001 C CNN
F 3 "~" H 4650 4200 50 0001 C CNN
1 4650 4200
-1 0 0 1
$EndComp
Wire Wire Line
4250 3700 4250 3750
Wire Wire Line
4650 3750 4250 3750
Connection ~ 4250 3750
Wire Wire Line
4250 3750 4250 3900
Wire Wire Line
4650 4100 4650 4050
Wire Wire Line
4450 4050 4650 4050
Connection ~ 4650 4050
Wire Wire Line
4650 4050 4650 4000
Wire Wire Line
4650 3750 4650 3800
Text Notes 6000 4900 0 50 ~ 0
-0.4V
Text Notes 6000 4500 0 50 ~ 0
-2.6V
Text Notes 5450 3900 0 50 ~ 0
Vo = 1.233 * (R2/R1 + 1)\n\nR2/R1 = (V0 / 1.233) - 1
$Comp
L power:-5V #PWR0161
U 1 1 5DD7D9B8
P 3850 2600
F 0 "#PWR0161" H 3850 2700 50 0001 C CNN
F 1 "-5V" H 3700 2650 50 0000 C CNN
F 2 "" H 3850 2600 50 0001 C CNN
F 3 "" H 3850 2600 50 0001 C CNN
1 3850 2600
-1 0 0 1
$EndComp
Wire Wire Line
3700 2600 3850 2600
Wire Wire Line
3850 2900 3700 2900
$Comp
L power:GND #PWR0166
U 1 1 5DD8338C
P 3850 2900
F 0 "#PWR0166" H 3850 2650 50 0001 C CNN
F 1 "GND" H 3855 2727 50 0001 C CNN
F 2 "" H 3850 2900 50 0001 C CNN
F 3 "" H 3850 2900 50 0001 C CNN
1 3850 2900
1 0 0 -1
$EndComp
Text Notes 4950 3900 0 50 ~ 0
R1
Text Notes 4950 4250 0 50 ~ 0
R2
$Comp
L power:GND #PWR0163
U 1 1 5DD80ADE
P 4250 3700
F 0 "#PWR0163" H 4250 3450 50 0001 C CNN
F 1 "GND" H 4255 3527 50 0001 C CNN
F 2 "" H 4250 3700 50 0001 C CNN
F 3 "" H 4250 3700 50 0001 C CNN
1 4250 3700
-1 0 0 1
$EndComp
$Comp
L Device:R_Small R28
U 1 1 5DD784E5
P 4250 4500
F 0 "R28" V 4054 4500 50 0000 C CNN
F 1 "470R" V 4145 4500 50 0000 C CNN
F 2 "Resistor_SMD:R_0805_2012Metric" H 4250 4500 50 0001 C CNN
F 3 "~" H 4250 4500 50 0001 C CNN
1 4250 4500
1 0 0 -1
$EndComp
$Comp
L power:-5V #PWR0165
U 1 1 5DD81BA9
P 4250 4650
F 0 "#PWR0165" H 4250 4750 50 0001 C CNN
F 1 "-5V" H 4100 4700 50 0000 C CNN
F 2 "" H 4250 4650 50 0001 C CNN
F 3 "" H 4250 4650 50 0001 C CNN
1 4250 4650
-1 0 0 1
$EndComp
Wire Wire Line
4650 4300 4650 4350
Wire Wire Line
4250 4350 4250 4400
Wire Wire Line
4250 4350 4250 4200
Wire Wire Line
4250 4600 4250 4650
Connection ~ 4250 4350
Wire Wire Line
4250 4350 4650 4350
$Comp
L Device:R_Small R27
U 1 1 5E698E5F
P 5450 4600
F 0 "R27" H 5350 4550 50 0000 C CNN
F 1 "1k" H 5350 4650 50 0000 C CNN
F 2 "Resistor_SMD:R_0805_2012Metric" H 5450 4600 50 0001 C CNN
F 3 "~" H 5450 4600 50 0001 C CNN
1 5450 4600
1 0 0 1
$EndComp
Wire Wire Line
5450 4350 6000 4350
Wire Wire Line
5450 5050 5450 5000
$Comp
L Device:R_Small R29
U 1 1 5E699399
P 5450 4900
F 0 "R29" H 5350 4850 50 0000 C CNN
F 1 "200R" H 5300 4950 50 0000 C CNN
F 2 "Resistor_SMD:R_0805_2012Metric" H 5450 4900 50 0001 C CNN
F 3 "~" H 5450 4900 50 0001 C CNN
1 5450 4900
1 0 0 1
$EndComp
$Comp
L power:GND #PWR0162
U 1 1 5E69A1F4
P 5450 5050
F 0 "#PWR0162" H 5450 4800 50 0001 C CNN
F 1 "GND" H 5455 4877 50 0001 C CNN
F 2 "" H 5450 5050 50 0001 C CNN
F 3 "" H 5450 5050 50 0001 C CNN
1 5450 5050
-1 0 0 -1
$EndComp
Wire Wire Line
5450 4800 5450 4750
Connection ~ 5450 4750
Wire Wire Line
5450 4750 5450 4700
Wire Wire Line
5450 4750 6000 4750
Connection ~ 4650 4350
Connection ~ 5450 4350
Wire Wire Line
5450 4350 5450 4500
Wire Wire Line
4650 4350 5450 4350
$EndSCHEMATC