INA146UAG4

Overview

The INA146UAG4 is a precision, low-power instrumentation amplifier manufactured by Texas Instruments. It features a single-channel architecture housed in an SOIC-8 surface-mount package. Key electrical specifications include a common-mode rejection ratio of 107 dB and an input bias current of 5 nA. The device operates with a supply voltage range from 2.7 V to 36 V and maintains functionality across a temperature range of -40°C to +85°C. Its quiescent current is typically 350 µA, ensuring efficient power consumption for battery-operated applications.

Feature Summary

• High common-mode rejection ratio ensures accurate signal amplification in noisy environments
• Low power consumption suitable for portable and battery-powered systems
• Wide single-supply voltage operation provides design flexibility
• Precision performance with low input offset voltage and drift

Applications

• Industrial process control sensor interfaces
• Medical equipment signal conditioning
• Data acquisition systems requiring high accuracy
• Strain gauge and bridge sensor amplification

Procurement Notes

Verify the specific ordering suffix AG4 confirms the tape-and-reel packaging variant when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure ESD handling procedures are followed during assembly due to the sensitivity of the internal circuitry.

Selection Notes

Select this component when high common-mode rejection is required alongside low power constraints. Compare against the INA118 series if different gain configurations or pinouts are needed. Verify that the SOIC-8 package dimensions fit the target PCB layout constraints.

Part Context

This part belongs to the INA146 family of instrumentation amplifiers designed for precision applications. It shares architectural similarities with other low-power TI amplifiers but offers specific gain and bandwidth characteristics tailored for industrial sensing. The AG4 suffix indicates a specific manufacturing lot and packaging configuration.

Replacement Considerations

Official substitutes may include other parts within the INA146 family or compatible devices from the INA118 series if pinout and electrical parameters align. Verify functional equivalence through official cross-reference tools provided by Texas Instruments.