Schematic, Pcb Layout, And Bill Of Materials; Schematic; Figure 4-1. Ina-Dual-2Amp-Evm Schematic - Texas Instruments INA-DUAL-2AMP-EVM User Manual

Schematic, PCB Layout, and Bill of Materials

4 Schematic, PCB Layout, and Bill of Materials

4.1 Schematic

The schematic for the PCB for the INA-DUAL-2AMP-EVM is shown in
TP4 TP5 TP6 TP7
GND
C16
R12
TP14
VINA-
0
C18
C19
R15
R17
TP17
VINA+
0 0
¡ ¢
C21
GND GND
TP15
VOA
R16
GND GND
TP3
OAVinA-
R2
R6
GND
TP13
OAVinA+
C12
R9
GND
10 INA-DUAL-2AMP-EVM
Instrumentation Amplifier
TP8 TP9 TP23 TP24
GND
1
2
3
J1
V+
R8
GND
R10
R11
V-
U2
VINA-
1
2 VINA+
RGA
3
R13
4 RGA
V+
R19
RefA
5
R21
6 VOA
SenseA
7
R22
V-
8
V-
V-
C22
R14
0.1µF
0
£ GND
C20
R5
0
§
TP10
REFA
C11
C17
R1
1 OUTA
C5
R3
2 INA-
R7
3
INA+
C13
4 VS-
OAV-
GND
GND
C14
0.1µF
GND

Figure 4-1. INA-DUAL-2AMP-EVM Schematic

Copyright © 2021 Texas Instruments Incorporated
Figure
Operational Amplifier Power
Power Supply
V+
TP1 TP2
C1
C2 C3
10µF
1µF 10µF
C6 C7
C8
10µF 1µF
10µF
TP11
1
V-
2
3
J2
GND
V+
U3
16
VINB-
VINB+ 15
RGB
14
R33
13
RGB
V+
RefB
12
11
VOB
SenseB
10
V+ 9
V+
C15
0.1µF
GND
TP18
REFB C24
GND
C10
0.1µF
U1
OAV+
VS+ 8
R18
7
OUTB
C23
INB- 6
INB+ 5
C26
GND
4-1.
Supply
OAV+
C4
1µF
C9
1µF
TP12
OAV-
GND
R28
GND
GND
R30
R31 C27
V-
R32
0
¥
C30
C29
R37
0
¦
C32
R38
R39
GND GND
R40
V-
R34
TP21
VOB
0
¤
C31
R36
R25
0
¨
GND GND
C28
TP16
OAVinB-
R23
R20
R27 R26
GND
TP19
OAVinB+
C25
R29
GND GND
SBOU272 – NOVEMBER 2021
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TP20
VINB-
R35
TP22
VINB+