INA117AM-BB

Overview

The INA117AM-BB is a precision unity-gain difference amplifier manufactured by Burr-Brown. It features a very high common-mode input voltage range of ±200V when supplied with ±15V power rails. The device is housed in a TO-99-8 metal can package, designed for applications requiring accurate differential signal amplification under extreme common-mode conditions.

Feature Summary

• Precision unity-gain difference amplifier architecture
• Very high common-mode input voltage capability
• Metal can packaging for robust environmental protection

Applications

• High voltage differential signal acquisition
• Industrial process control instrumentation
• Medical equipment signal conditioning

Procurement Notes

Verify the specific suffix 'BB' and 'AM' against the manufacturer's current datasheet to confirm pinout compatibility and electrical specifications. Ensure the TO-99-8 metal can package matches the target PCB footprint or adapter requirements. Cross-reference the part number with official Burr-Brown or Texas Instruments documentation to validate authenticity and revision status before procurement.

Selection Notes

Select this component when the application demands a fixed unity-gain difference amplifier capable of handling input signals with large common-mode offsets relative to ground. The high common-mode voltage rating makes it suitable for sensing in high-voltage environments where standard instrumentation amplifiers would fail. Consider the metal can package constraints regarding thermal management and mounting.

Part Context

The INA117 series belongs to Burr-Brown's line of precision difference amplifiers. These devices are engineered to provide accurate subtraction of two input voltages while rejecting common-mode noise. The AM variant typically denotes a specific grade or temperature range within the family, housed in a hermetic metal can for reliability.

Replacement Considerations

Check for direct replacements such as the INA117BM or INA117P from the same manufacturer family, ensuring pinout and specification alignment. Verify if newer generations from Texas Instruments offer equivalent performance with updated packaging options.