INA128-HT Datasheet PDF – Instrumentation Amplifier – TI

Part Number: INA128-HT

Function : High Temperature Precision, Low Power Instrumentation Amplifier

Package: SOIC 8 Pin Type

Manufacturer: TI

Simplified Schematic

INA128-HT schematic


The INA128-HT and INA129-HT are low-power, general-purpose instrumentation amplifiers offering excellent accuracy. The versatile three-operational-amplifier design and small size make them ideal for a wide range of applications. Current-feedback input circuitry provides wide bandwidth even at high gain. A single external resistor sets any gain from 1 to 10000. The INA128-HT provides an industry-standard gain equation; the INA129-HT gain equation is compatible with the AD620.


1. Low Offset Voltage: 25 uV Typical

2. Low Input Bias Current: 50 nA Typical

3. High CMR: 95 dB Typical

4. Inputs Protected to ±40 V

5. Wide Supply Range: ±2.25 V to ±18 V

6. Low Quiescent Current: 2 mA Typical

Image and Pinout:

INA128-HT datasheet pinout



1. Bridge Amplifiers

2. Thermocouple Amplifiers

3. RTD Sensor Amplifiers

4. Medical Instrumentation

5. Data Acquisition

Official Homepage:

INA128-HT Datasheet PDF