INA2137UA/2K5G4

Overview

The INA2137UA/2K5G4 is a dual audio differential line receiver manufactured by Texas Instruments. It operates within a supply voltage range of 4 V to 18 V and features a fixed gain configuration of ±6 dB, corresponding to voltage gains of 1/2 or 2. The device utilizes a 14-pin SOIC package and supports surface mount installation. Key electrical specifications include a slew rate of 14 V/µs, an input offset voltage of 1 mV, and an operating temperature range from -40°C to +85°C.

Feature Summary

• Dual-channel architecture designed for audio differential line reception applications
• Fixed gain configuration providing ±6 dB amplification with selectable voltage ratios of 1/2 or 2
• Rail-to-rail output capability ensuring maximum dynamic range utilization

Applications

• Audio differential line receivers in professional audio equipment
• Balanced audio signal transmission systems
• Consumer audio interface circuits requiring differential input processing

Procurement Notes

Verify the specific suffix 'G4' against current manufacturer documentation to confirm compliance status and availability, as component designations may evolve. Ensure the 14-SOIC package dimensions match the target PCB footprint. Confirm that the fixed ±6 dB gain meets the system requirements without additional external attenuation or amplification stages.

Selection Notes

Select this component when a dual-channel solution is required for balanced audio lines with a fixed gain of ±6 dB. It is suitable for designs needing rail-to-rail output swing and operation across a wide supply voltage range of 4 V to 18 V. Consider the 14-SOIC package constraints and the specified slew rate of 14 V/µs for high-fidelity audio signal integrity.

Part Context

The INA2137UA/2K5G4 belongs to the INA2137 family of audio differential line receivers. This series is engineered for robust performance in balanced audio environments, offering integrated gain setting to simplify circuit design. The device integrates two independent channels within a single compact package, optimizing board space for multi-channel audio applications.

Replacement Considerations

The INA2137UA serves as the base part number variant. Verify if the '/2K5' reel specification or 'G4' environmental marking impacts compatibility with existing assembly processes.