INA2141PA

Overview

The INA2141PA is a dual low-power instrumentation amplifier manufactured by Texas Instruments. It features a 200 kHz bandwidth and a 4 V/us slew rate. The device offers a common-mode rejection ratio of 117 dB, an input bias current of 5 nA, and an input offset voltage of 50 uV. It operates on a supply voltage range of 4.5 V to 36 V with a quiescent current of 750 uA. Available in SOIC-16 packaging, it supports fixed gains of 10 V/V and 100 V/V. The component functions within a temperature range of -40 C to +85 C.

Feature Summary

• Dual-channel architecture providing two independent instrumentation amplifiers in a single package
• Low power consumption suitable for battery-operated applications
• High common-mode rejection capability for accurate signal measurement
• Fixed gain options of 10 V/V and 100 V/V

Applications

• Industrial process control systems
• Medical equipment signal conditioning
• Data acquisition systems

Procurement Notes

Verify the specific suffix against official datasheets to confirm pinout and electrical characteristics. Ensure the package type matches the design requirements. Check for moisture sensitivity levels if reflow soldering is planned. Confirm RoHS compliance status for regulatory adherence. Validate the operating temperature range against environmental conditions.

Selection Notes

Select this component when dual channels are required in a compact form factor. Consider the 200 kHz bandwidth for moderate-speed applications. Evaluate the 50 uV offset voltage for precision needs. Compare power consumption against other dual instrumentation amplifiers. Verify compatibility with available gain settings.

Part Context

The INA2141PA belongs to the INA2141 series of instrumentation amplifiers from Texas Instruments. This series is designed for general-purpose analog signal conditioning. It complements other precision amplifier families by offering a balance of performance and power efficiency. The part is commonly used in environments requiring reliable differential amplification.

Replacement Considerations

INA2141UA: Pin-compatible alternative with similar specifications. INA2141UE4: Equivalent variant with different packaging or suffix designation.