INA125P

Overview

The INA125P is a precision instrumentation amplifier manufactured by Texas Instruments, featuring an integrated precision voltage reference. It operates on a single supply ranging from 2.7 V to 36 V and consumes a maximum operating current of 460 µA. The device offers a 3 dB bandwidth of 150 kHz with a slew rate of 200 mV/µs. Key electrical specifications include a common-mode rejection ratio (CMRR) of 100 dB, an input bias current of 25 nA, and an input offset voltage of 500 µV. It is housed in a through-hole package and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Integrates a precision voltage reference for simplified circuit design
• Supports wide single-supply operation up to 36 V
• Provides high common-mode rejection for accurate signal conditioning

Applications

• Precision sensor signal conditioning
• Data acquisition systems
• Industrial process control

Procurement Notes

Verify the specific suffix 'PA' against the manufacturer's official datasheet to confirm pinout compatibility and package dimensions. Ensure the selected component matches the required thermal performance and electrical tolerances for the intended application environment before finalizing procurement.

Selection Notes

Select this component when a built-in reference voltage is required to reduce external component count. It is suitable for applications demanding low power consumption alongside moderate bandwidth. Verify that the input offset voltage and bias current specifications meet the system's accuracy requirements.

Part Context

This part belongs to the INA125 series of instrumentation amplifiers. It is designed as a cost-effective solution for general-purpose analog signal processing tasks where integration of a reference source provides a distinct advantage over discrete solutions.

Replacement Considerations

Check for direct replacements within the INA125 family, such as the INA125UA, ensuring package type and electrical parameters align with the existing design constraints.