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Texas Instruments INA128PG4 — Analog & Data Acquisition

INA128PG4 Instrumentation Amplifier, 1.3 MHz, 4 V/µs, 8-PDIP

MPNINA128PG4
End of Life

Texas Instruments INA128PG4 instrumentation amplifier, 1.3 MHz bandwidth, 4 V/µs slew rate, 10 µV offset, 2 nA bias, 4.5–36 V supply, 8-PDIP, through hole, -40°C to 85°C.

Texas Instruments INA128PG4 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

INA128PG4 specifications
ParameterValue
MountingThrough Hole
Amplifier typeInstrumentation
Voltage - input offset10 µV
Voltage - supply span4.5 V
Current - supply700µA
Current - input bias2 nA
Current - output (Channel)15 mA
Operating temperature-40°C~85°C
-3db bandwidth1.3 MHz
PackageTube
Slew rate4V/µs
Case8-DIP (0.300\", 7.62mm)
Number of circuits1

Product details

Precision amplifier for bridge and sensor conditioning

The Texas Instruments INA128PG4 is a precision instrumentation amplifier in an 8-pin PDIP package, designed for differential signal conditioning where low offset and low drift matter — weigh scales, strain-gauge bridges, thermocouple front-ends, and medical instrumentation.

Offset and bias — the error-budget numbers

The input offset voltage is 10 µV typical, and the input bias current is 2 nA typical.

Supply range and operating temperature

The supply span runs from 4.5 V minimum to 36 V maximum. Quiescent current is 700 µA.

Frequently asked questions

Is the INA128PG4 obsolete?

No.