INA159AIDGKRG4

Overview

The INA159AIDGKRG4 is a high-precision differential amplifier manufactured by Texas Instruments, featuring a fixed gain of 0.2 V/V and level translation capabilities. It operates within a supply voltage range of 1.8 V to 5.5 V with a quiescent current of 1.1 mA. Key electrical specifications include a gain-bandwidth product of 1.5 MHz, a slew rate of 15 V/us, and an input offset voltage of 100 uV. The device provides a common-mode rejection ratio (CMRR) of 80 dB and delivers an output current of 60 mA per channel. It supports a common-mode voltage range extending from -300 mV to the positive supply rail and functions reliably across an operating temperature range of -40°C to +125°C.

Feature Summary

• Fixed gain configuration of 0.2 V/V for precise signal attenuation
• Integrated level translation functionality for interfacing different voltage domains
• High precision performance with low input offset voltage characteristics

Applications

• Signal conditioning in industrial measurement systems
• Level shifting between microcontrollers and analog sensors
• Data acquisition front-end circuits requiring attenuation

Procurement Notes

Verify the specific suffix 'R4' against the manufacturer's official documentation to confirm tape-and-reel packaging and RoHS compliance status. Ensure the ordering part number matches the exact pinout and thermal requirements for your PCB layout. Cross-reference the datasheet revision date to validate all electrical parameters before finalizing procurement decisions.

Selection Notes

Select this component when a fixed attenuation ratio of 0.2 is required alongside level translation. It is suitable for applications needing a wide common-mode voltage range that extends below ground. Consider the 1.5 MHz bandwidth and 100 uV offset voltage when designing for precision signals. Verify that the VSSOP-8 package fits your spatial constraints and thermal management strategy.

Part Context

This device belongs to the INA159 family of high-precision differential amplifiers designed for robust signal processing. It integrates fixed-gain architecture to minimize external component count while maintaining accuracy. The series is engineered for industrial environments, offering reliable operation over extended temperature ranges and providing stable performance under varying supply conditions.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.