INA159AIDGKT

Overview

The INA159AIDGKT is a high-speed precision differential amplifier manufactured by Texas Instruments. It features a fixed gain of 0.2 V/V and provides level translation capabilities. The device operates on a single supply voltage ranging from 1.8 V to 5.5 V, with a maximum rating of 5.5 V. 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. It delivers an output current of 60 mA per channel and maintains a common-mode rejection ratio of 80 dB. The component functions within a temperature range of -40 C to +125 C.

Feature Summary

• Provides precise signal conditioning through a fixed internal gain of 0.2 V/V
• Integrates level translation functionality for interfacing with varying voltage domains
• Supports high-speed operation with a 1.5 MHz gain-bandwidth product and 15 V/us slew rate
• Operates efficiently on low-voltage single supplies starting at 1.8 V

Applications

• Level shifting in data acquisition systems
• Signal conditioning for analog-to-digital converters
• Interface circuits for sensor networks requiring voltage translation

Procurement Notes

Verify the specific suffix 'DGKT' corresponds to the VSSOP-8 package and tape-and-reel shipping configuration. Confirm that the 'A' grade designation aligns with the required input offset voltage and bias current tolerances for your design. Ensure the operating environment stays within the specified -40 C to +125 C thermal limits. Cross-reference the datasheet for moisture sensitivity levels and recommended soldering profiles during assembly.

Selection Notes

Select this component when a fixed attenuation gain of 0.2 V/V is required alongside simultaneous level translation. It is suitable for applications needing high-speed performance with a 1.5 MHz bandwidth. Consider this part for low-voltage systems operating down to 1.8 V where rail-to-rail input or output swing is not strictly defined but high output drive capability of 60 mA is beneficial. Evaluate the 100 uV input offset voltage against system accuracy requirements.

Part Context

This device belongs to the INA159 series of differential amplifiers designed for precision applications. It integrates a fixed-gain architecture to simplify circuit design by eliminating external resistors. The family targets industrial and communication interfaces where signal integrity and voltage domain compatibility are critical. The DGKT variant specifically denotes the surface-mount VSSOP-8 packaging option optimized for automated assembly processes.

Replacement Considerations

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