INA125PAG4

Overview

The INA125PAG4 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 draws a typical operating current of 460 µA. The device provides a 3 dB bandwidth of 150 kHz and 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 standard DIP-8 package and supports operation temperatures between -40°C and +85°C.

Feature Summary

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

Applications

• Precision data acquisition systems
• Strain gauge and bridge sensor interfaces
• Medical equipment signal conditioning

Procurement Notes

Verify the complete part number including the G4 suffix to ensure compliance with specific manufacturing standards. Confirm the package type matches the required footprint for PCB layout. Check the datasheet for detailed pinout configurations and thermal characteristics before integration into the final assembly.

Selection Notes

Select this component when a built-in voltage reference is required to reduce external component count. It is suitable for applications needing high CMRR and low power consumption within a wide supply voltage range. Ensure the input offset voltage and bias current specifications meet the sensitivity requirements of the target sensor interface.

Part Context

The INA125PAG4 belongs to the INA125 family of instrumentation amplifiers. The 'G4' suffix typically indicates lead-free packaging and RoHS compliance. This series is designed for general-purpose precision applications where space savings and reduced bill of materials are priorities due to the internal reference.