INA2321EA/250

Overview

The INA2321EA/250 is a dual-channel, micropower instrumentation amplifier from Texas Instruments. It operates on a single supply voltage ranging from 2.7 V to 5.5 V with an operating supply current of 40 uA. Key electrical specifications include a 3dB bandwidth of 500 kHz, a slew rate of 400 mV/us, and a common-mode rejection ratio (CMRR) of 90 dB. The device features low input bias current of 10 pA and input offset voltage of 1 mV. Gain is adjustable from 5 V/V to 1000 V/V with a gain error of 0.01%. It is housed in a TSSOP-14 package and supports operation temperatures from -55°C to +125°C.

Feature Summary

• Dual-channel architecture for simultaneous signal processing
• Micropower CMOS design optimized for low energy consumption
• High precision performance with low offset voltage and bias current
• Wide common-mode rejection capability for noisy environments

Applications

• Battery-powered sensor interfaces
• Industrial process control systems
• Medical instrumentation equipment

Procurement Notes

Verify the specific suffix '/250' against the manufacturer's official datasheet to confirm packaging configuration and reel quantity specifications. Ensure compatibility with the required TSSOP-14 footprint and thermal management requirements for the target application environment.

Selection Notes

Select this component when dual-channel amplification is required within a micropower constraint. The wide gain range and high CMRR make it suitable for precision applications where power efficiency and signal integrity are critical priorities.

Part Context

This part belongs to the INA2321 series of instrumentation amplifiers. It shares core electrical characteristics with variants like the INA2321EA/2K5, differing primarily in packaging quantities and distribution formats rather than functional performance.

Replacement Considerations

The INA2321EA/2K5 serves as a direct functional substitute within the same series, offering identical electrical specifications and pinout compatibility.