NO1
1
COM1
2
NO2
3
COM2
4
IN2
5
IN3
6
GND
7
NO3
8
COM3
9
COM4
10
NO4
11
IN4
12
IN1
13
V+
14
U7
TS12A44514PW
2
3
1
A
V+
V-
8
4
U8A
OPA2320AIDGK
6
5
7
B
V+
V-
U8B
OPA2320AIDGK
3
1
2
Q1
MMBT3904
3
1
2
Q2
MMBT3906
1
2
3
4
5
6
7
8
9
10
11
12
J7
2700pF
C63
2700pF
C60
20.0k
R76
ADCREF
0
R79
0
R74
AVDD/DVDD
AGND
17.4
R77
17.4
R80
AGND
AGND
AGND
AGND
0.1μF
C58
AGND
0
R72
0
R73
ADC3
ADC2
ADC1
ADC0
IOVDD
IOVDD
GND
AMC D2-
AMC D2+
AMC D1-
AMC D1+
1
2
JP6
GND
DIODE SELECT
DACREF
Onboard Temperature Diode Selection
Jumper Table:
- JP6 (DIODE SELECT): Remote temperature diode selection.
Installed shunt selects external temperature diodes connected to J2-1,2 and J3-1,2
Uninstalled shunt selects onboard temperature diodes Q1 and Q2
Onboard ADC Filter and Buffer
0.1μF
C54
GND
Note: If onboard buffers are not used,
jumpers should be installed
on J7-5,6 and J7-7,8.
AGND
R75
NI
R78
NI
C53
NI
C55
NI
C56
NI
C57
NI
C62
NI
AGND
270pF
C59
270pF
C61
AMC7812EVM Documentation
Figure 35. AMC7812EVM Schematic (2 of 3)
23
SBAU177D – September 2010 – Revised August 2014
AMC7812EVM-PDK User’s Guide
Copyright © 2010–2014, Texas Instruments Incorporated
