OPA445BM

Instrumentation, Op Amps, Buffer Amps Overview

The OPA445BM is a high-voltage operational amplifier manufactured by Texas Instruments, featuring a single FET-input channel. It operates within a supply voltage range of 20 V to 90 V and delivers an output current of 15 mA per channel. Key electrical specifications include a gain-bandwidth product of 2 MHz, a slew rate of 15 V/µs, and a common-mode rejection ratio of 95 dB. The device utilizes a TO-99-8 metal can package and supports extended operating temperatures from -55°C to +125°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• High-voltage operation capability up to 90 V
• FET-input architecture for low bias current
• Metal can packaging for robust performance

Instrumentation, Op Amps, Buffer Amps Applications

• Industrial process control systems
• Medical equipment requiring high isolation
• Test and measurement instrumentation
• Sensor signal conditioning circuits

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific datasheet version for the OPA445BM to confirm exact mechanical dimensions and electrical tolerances. Ensure compatibility with existing thermal management solutions due to the metal can package characteristics. Cross-reference official manufacturer documentation for any recent design changes or lifecycle status updates before finalizing procurement plans.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select the OPA445BM when high supply voltages and low input bias currents are required in a ruggedized package. Compare against SOIC variants if surface-mount technology is preferred, noting that the TO-99-8 package offers different thermal and mechanical properties. Evaluate the 15 V/µs slew rate against application bandwidth requirements to ensure adequate signal fidelity.

Instrumentation, Op Amps, Buffer Amps Part Context

The OPA445BM belongs to the OPA445 family of high-voltage operational amplifiers designed for demanding analog applications. This series provides precision amplification capabilities while handling significant voltage swings. The BM suffix specifically denotes the TO-99-8 metal can package variant, distinguishing it from plastic package options like the AD or AU series within the same functional family.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Consult official Texas Instruments documentation for confirmed substitute part numbers. Verify pinout compatibility and electrical parameter equivalence before replacing the OPA445BM with alternative high-voltage op-amps.