INA2133U/2K5

Overview

The INA2133U/2K5 is a high-speed precision differential amplifier manufactured by Texas Instruments. It features two channels in an SOIC-14 package, designed for applications requiring fast signal processing with high accuracy. The device operates on supply voltages ranging from 4.5 V to 36 V and maintains functionality across an extended temperature range of -55°C to +125°C. Key electrical specifications include a gain-bandwidth product of 1.5 MHz, a slew rate of 4.5 V/us, and a common-mode rejection ratio of 80 dB. Input offset voltage is specified at 450 uV, with an operating supply current of 950 uA.

Feature Summary

• High-speed performance with 1.5 MHz gain-bandwidth product and 4.5 V/us slew rate
• Precision characteristics including 80 dB common-mode rejection ratio and low input offset voltage
• Wide single-supply operation capability from 4.5 V to 36 V
• Extended industrial temperature range supporting -55°C to +125°C

Applications

• Industrial process control systems requiring precise signal conditioning
• Medical instrumentation needing high common-mode rejection
• Data acquisition systems utilizing high-speed analog front ends
• Test and measurement equipment demanding accurate differential amplification

Procurement Notes

Verify the specific suffix '2K5' indicates the tape-and-reel packaging configuration as documented by the manufacturer. Confirm that the SOIC-14 package dimensions match your PCB footprint requirements. Ensure that the extended temperature rating of -55°C aligns with your environmental design constraints. Cross-reference the datasheet revision date to confirm compatibility with your system's electrical specifications.

Selection Notes

Select this component when application requirements demand both high speed and precision in a differential configuration. The wide supply voltage range allows flexibility in power design compared to lower-voltage alternatives. Consider the 80 dB CMRR for environments with significant noise interference. The extended temperature range makes it suitable for harsh industrial settings where standard commercial grade parts may fail.

Part Context

The INA2133 belongs to Texas Instruments' family of high-speed precision differential amplifiers. It integrates matched internal resistors to provide a fixed gain, simplifying circuit design by eliminating external precision resistor networks. This integration ensures better tracking and stability over temperature variations compared to discrete solutions. The U/2K5 designation specifically identifies the surface-mount variant in the SOIC-14 package with reel packaging.

Replacement Considerations

• INA2133UA/2K5
• INA2133DR