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INA821 Datasheet(PDF) 27 Page - Texas Instruments

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Part # INA821
Description  INA597 High-Precision, Wide-Bandwidth e-trim??Difference Amplifier
PDF  47 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

INA821 Datasheet(HTML) 27 Page - Texas Instruments

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9.2.2 Precision Instrumentation Amplifier
The INA597 can be combined with op amps to form a complete instrumentation amplifier (IA) with specialized
performance characteristics, as shown in Figure 9-5.
5
6
1
3
INA597
2
V
1
V
O
A
2
A
1
R
2
R
2
R
1
–IN
V
2
+IN
V
O = (1 + 2R2 / R 1) (V2 – V1)
Figure 9-5. Precision Instrumentation Amplifier
9.2.3 Low Power, High-Output Current, Precision, Difference Amplifier
5
6
1
INA597
BUF634
2
3
VO
RL
–IN
+IN
(Low I mode)
Q
BUF634 inside feedback
loop contributes no error.
Figure 9-6. Low Power, High-Output Current, Precision, Difference Amplifier
9.2.4 Pseudoground Generator
5
6
2
(V+) / 2
INA597
V+
1
7
4
V+
Ground
Ground
3
Figure 9-7. Pseudoground Generator
www.ti.com
INA597
SBOS385B – AUGUST 2019 – REVISED APRIL 2021
Copyright © 2021 Texas Instruments Incorporated
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Product Folder Links: INA597



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