INA326EA/250

Overview

The INA326EA/250 is a precision, low-drift CMOS instrumentation amplifier manufactured by Texas Instruments. It features a single channel with a 1 kHz bandwidth and 100 dB common-mode rejection ratio. Key electrical parameters include a maximum input bias current of 2 nA, an input offset voltage of 100 µV, and a power supply range from 2.7 V to 5.5 V. The device operates with a typical supply current of 2.4 mA and functions within a temperature range of -40°C to +85°C. It is housed in a VSSOP-8 surface-mount package.

Feature Summary

• Precision low-drift CMOS architecture for stable signal amplification
• High common-mode rejection ratio for noise reduction
• Low input bias current for minimal loading effects
• Single-channel design in compact surface-mount packaging

Applications

• Precision sensor signal conditioning
• Data acquisition systems
• Industrial process control instrumentation

Procurement Notes

Verify the specific suffix '250' against the manufacturer's official datasheet to confirm reel quantity or tape-and-reel specifications. Confirm RoHS compliance status and humidity sensitivity level prior to procurement. Ensure the VSSOP-8 package dimensions match your PCB footprint requirements. Check for obsolescence notices as this component may have limited availability.

Selection Notes

Select this component when high precision and low drift are required for low-frequency signals. The 1 kHz bandwidth limits suitability for high-speed applications. Compare input offset voltage and bias current against system requirements. Consider the single-channel configuration versus dual-channel alternatives if multiple inputs are needed. Verify power supply constraints fit within the 2.7 V to 5.5 V range.

Part Context

This part belongs to the INA326 series of instrumentation amplifiers from Texas Instruments. The series is characterized by precision performance and low power consumption. The EA/250 designation indicates a specific package and reel configuration within this family. It serves as a specialized solution for applications requiring accurate differential voltage measurement with minimal error.

Replacement Considerations

INA326EA/2K5G4: Same series, different packaging or reel specification.