INA326EA/250G4

Overview

The INA326EA/250G4 is a precision, low-drift CMOS instrumentation amplifier manufactured by Texas Instruments. It features a single channel with a 1 kHz -3dB bandwidth and a common-mode rejection ratio of 100 dB. The device operates on a supply voltage ranging from 2.7 V to 5.5 V, drawing a typical operating current of 2.4 mA. Key electrical specifications include an input bias current of 2 nA and an input offset voltage of 100 µV. It is designed for surface-mount installation within an operating temperature range of -40°C to +85°C.

Feature Summary

• Precision low-drift CMOS architecture ensures stable signal amplification
• High common-mode rejection capability for accurate differential measurements
• Single-channel configuration optimized for compact circuit designs

Applications

• Precision sensor signal conditioning
• Low-frequency data acquisition systems
• Industrial process control instrumentation

Procurement Notes

Verify the exact suffix G4 against current manufacturer documentation to confirm lead times and availability status, as component lifecycle stages may affect procurement. Confirm RoHS compliance details directly with the supplier or official datasheet before ordering. Ensure the specific package variant matches your PCB footprint requirements. Cross-reference the Mouser number 595-INA326EA/250G4 for accurate distributor identification.

Selection Notes

Select this component when high precision and low drift are required in low-bandwidth applications. The 1 kHz bandwidth suits slow-varying signals rather than high-speed processing. Compare input offset voltage and bias current against system noise floors. Ensure the 2.7 V to 5.5 V supply range aligns with available power rails. Consider the SMD/SMT package style for automated assembly compatibility.

Part Context

This part belongs to the INA326 series of instrumentation amplifiers from Texas Instruments. It shares architectural similarities with other members like the INA327 but differs in specific performance metrics such as bandwidth and shutdown capabilities. The series targets general-purpose precision analog signal processing tasks requiring stable gain and low power consumption.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.