INA128UA/2K5G4

Overview

The INA128UA/2K5G4 is a precision, low-power instrumentation amplifier manufactured by Texas Instruments. It features a single channel in an 8-SOIC surface-mount package. Key electrical specifications include a gain bandwidth product of 1.3 MHz, a slew rate of 4 V/µs, and a supply current of 700 µA. The device operates within a voltage range of 4.5 V to 36 V and supports temperatures from -40°C to 85°C.

Feature Summary

• High common-mode rejection ratio for accurate signal conditioning
• Low power consumption suitable for battery-operated systems
• Precision performance with low input offset voltage

Applications

• Strain gauge and load cell measurements
• Medical equipment signal processing
• Industrial process control systems
• Data acquisition channels

Procurement Notes

Verify the specific suffix 'G4' against the official manufacturer datasheet to confirm lead-free compliance and exact ordering details. Ensure the selected packaging matches the required reel or tube specifications for the production line.

Selection Notes

Select this component when high accuracy and low power are critical. Compare the 1.3 MHz bandwidth and 700 µA supply current against system requirements. Verify that the 8-SOIC package fits the PCB layout constraints.

Part Context

This part belongs to the INA12x family of instrumentation amplifiers from Texas Instruments. It is designed for general-purpose precision applications requiring high input impedance and excellent DC accuracy. The family is widely used in sensor interface circuits.

Replacement Considerations

Official substitutes include other parts within the INA12x series such as the INA128U. Verify pin compatibility and electrical parameters before substitution.

FAQ

What is the maximum supply voltage for the INA128UA/2K5G4?

The maximum supply voltage is 36 V.

What is the operating temperature range?

The operating temperature range is from -40°C to 85°C.