INA155UA/2K5

Overview

The INA155UA/2K5 is a single-channel, precision instrumentation amplifier manufactured by Texas Instruments. It features a CMOS architecture designed for single-supply operation with rail-to-rail output capability. The device is housed in an 8-pin SOIC package and includes the /2K5 suffix indicating tape-and-reel packaging. It is engineered for applications requiring high accuracy and low power consumption in compact form factors.

Feature Summary

• Single-supply operation with rail-to-rail output swing
• CMOS technology for low power consumption
• Precision instrumentation amplifier architecture

Applications

• Battery-powered measurement systems
• Industrial process control sensors
• Medical instrumentation front-ends

Procurement Notes

Verify the /2K5 suffix confirms tape-and-reel packaging when ordering. Ensure compatibility with single-supply voltage ranges specified in the official datasheet. Confirm RoHS compliance status through manufacturer documentation prior to integration into regulated assemblies.

Selection Notes

Select this component for designs requiring a cost-optimized, single-channel instrumentation solution. The CMOS input stage offers advantages in power efficiency compared to bipolar counterparts. Verify that the SOIC-8 package fits the available PCB footprint constraints.

Part Context

This part belongs to the INA155 family of instrumentation amplifiers from Texas Instruments. It serves as a specialized variant optimized for single-supply environments. The /2K5 designation specifically denotes the reel quantity and packaging method for automated assembly processes.

Replacement Considerations

Direct substitutes include other single-channel, rail-to-rail output instrumentation amplifiers from Texas Instruments such as the INA155UA without the reel suffix for tube packaging. Cross-reference pinouts and electrical specifications carefully before substitution.