INA128UG4

Overview

The INA128UG4 is a precision, low-power instrumentation amplifier manufactured by Texas Instruments. It features a single circuit in an 8-pin SOIC package. Key electrical specifications include a supply voltage range of 4.5 V to 36 V and a typical quiescent current of 700 µA. The device offers a gain bandwidth product of 1.3 MHz and a slew rate of 4 V/µs. It provides high common-mode rejection ratio performance suitable for precise signal conditioning applications.

Feature Summary

• Precision instrumentation amplifier design
• Low power consumption characteristics
• High common-mode rejection ratio capability

Applications

• Strain gauge measurements
• Bridge sensor interfaces
• Medical equipment signal conditioning
• Industrial process control systems

Procurement Notes

Verify the specific suffix 'G4' indicates lead-free compliance and RoHS status according to the official Texas Instruments datasheet. Confirm the package type and temperature range match the design requirements before procurement.

Selection Notes

Select this component when high precision and low power are required in a compact surface-mount package. Ensure the input bias current and offset voltage specifications meet the sensitivity requirements of the target application circuit.

Part Context

This part belongs to the INA128 family of instrumentation amplifiers from Texas Instruments. The family is known for providing excellent DC accuracy and low power consumption in a small form factor, widely used in battery-powered and portable measurement devices.

Replacement Considerations

Official substitutes within the same family include the INA128U and INA128UA. Verify pin compatibility and electrical parameter equivalence with the manufacturer's documentation before substitution.