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INA128P Datasheet(PDF) 20 Page - Texas Instruments

Part # INA128P
Description  INA12x Precision, Low-Power Instrumentation Amplifiers
PDF  35 Pages
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Manufacturer  TI2 [Texas Instruments]
Direct Link  https://www.ti.com
Logo TI2 - Texas Instruments

INA128P Datasheet(HTML) 20 Page - Texas Instruments

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INA128
R
G
I
B
R
V
1
IN
+
A
1
I
O
Load
Ref
I
O
V
IN
R
1
G
A1
I
ERROR
B
OPA177
±1.5 nA
OPA131
±50 pA
OPA602
±1 pA
OPA128
±75 fA
=
•
Figure 9-11. Differential Voltage to Current Converter
INA128
R
G/2
R
G = 5.6kΩ
V
O
LA
RL
RA
10kΩ
Ref
G = 10
2.8kΩ
V
V
G
G
2.8kΩ
1/2
OPA2131
390kΩ
390kΩ
1/2
OPA2131
NOTE: Due to the INA128’s current-feedback
topology, VG is approximately 0.7V less than
the common-mode input voltage. This DC offset
in this guard potential is satisfactory for many
guarding applications.
Figure 9-12. ECG Amplifier With Right-Leg Drive
INA128, INA129
SBOS051F – OCTOBER 1995 – REVISED MAY 2022
www.ti.com
20
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Copyright © 2022 Texas Instruments Incorporated
Product Folder Links: INA128 INA129



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