INA101SM

Overview

The INA101SM is a high-accuracy instrumentation amplifier manufactured by Texas Instruments. It operates on a single supply voltage ranging from 10 V to 40 V, with a typical operating current of 6.7 mA. The device features a gain bandwidth product of 25 kHz and a common-mode rejection ratio of 106 dB. It has an input offset voltage of 50 uV and input bias current of 30 nA. The component is housed in a TO-99-8 package and supports through-hole mounting. It functions within a temperature range of -55 C to +125 C.

Feature Summary

• Provides very high accuracy signal conditioning for precision measurement applications
• Offers high common-mode rejection ratio to effectively suppress noise interference
• Supports wide dual power supply operation for flexible system integration

Applications

• Precision industrial sensor signal conditioning
• Medical equipment data acquisition systems
• High-accuracy test and measurement instrumentation

Procurement Notes

Verify the exact part number suffix against official Texas Instruments documentation to ensure correct package type and electrical specifications. Confirm RoHS compliance status and moisture sensitivity level requirements prior to procurement. Check for obsolescence notices as some variants may be nearing end-of-life. Ensure supplier authorization to guarantee genuine components and traceability.

Selection Notes

Select this component when high DC accuracy and low offset voltage are critical for the application. Consider the TO-99 metal can package for superior shielding and thermal performance compared to plastic packages. Evaluate the 25 kHz bandwidth limitation against the required signal frequency range. Ensure the power supply voltage stays within the 10 V to 40 V operational limits for reliable performance.

Part Context

The INA101 belongs to Texas Instruments' legacy instrumentation amplifier family designed for high-precision analog signal processing. It utilizes bipolar technology to achieve low offset and drift characteristics. This series is commonly used in applications requiring stable amplification of small differential signals in noisy environments, serving as a foundational component in precision analog front-end designs.

Replacement Considerations

Public confirmed substitute part numbers: None identified.