A80-1

Overview

The A80-1 is a cascadable RF amplifier IC from MACOM Technology Solutions, designed for general-purpose applications within the 5 MHz to 200 MHz frequency range. Housed in a hermetically sealed TO-8 package, this device utilizes discrete hybrid design and thin film manufacturing processes to ensure accurate performance and high reliability. It features a two-stage silicon bipolar feedback architecture with an isolation transformer in the feedback loop, providing high reverse isolation of approximately 39 dB typical. The amplifier delivers a gain of roughly 27.3 dB and maintains a very low noise figure of about 2.0 dB, while offering medium level output power of +14.3 dBm typical.

Feature Summary

• Discrete hybrid design utilizing thin film manufacturing processes for high reliability
• Two-stage silicon bipolar feedback architecture with isolation transformer
• Hermetically sealed TO-8 package suitable for MIL-STD-883 environmental screening

Applications

• GPS receiver front ends
• General purpose RF amplification in communication systems
• IF stage amplification in radio frequency circuits

Procurement Notes

Verify the specific datasheet version and manufacturer documentation to confirm electrical parameters such as gain, noise figure, and frequency range match system requirements. Ensure the TO-8 package compatibility with existing PCB layouts or test fixtures. Check for availability of MIL-STD-883 environmental screening options if operating in harsh environments. Confirm RoHS compliance status based on current production batches. Cross-reference part numbers carefully as similar models may exist from other manufacturers with different specifications.

Selection Notes

Select the A80-1 when low noise and high reverse isolation are critical within the 5 MHz to 200 MHz band. Consider its cascadable nature for multi-stage amplification needs requiring precise gain control. Evaluate the TO-8 package constraints against space limitations. Compare performance metrics like noise figure and gain flatness against alternative surface mount devices if size reduction is prioritized over hermetic sealing capabilities.

Part Context

The A80-1 belongs to MACOM's family of cascadable RF amplifiers, which employ discrete hybrid designs for superior performance consistency. These amplifiers are engineered for broadband operation using thin film technology, distinguishing them from monolithic integrated circuits. The series typically offers hermetically sealed packages to support demanding military and aerospace applications where reliability under extreme conditions is mandatory.

Replacement Considerations

Public confirmed substitute part numbers are not explicitly documented in the provided source material. Users should consult official MACOM documentation or authorized distributors for validated equivalents. Generic replacements may differ significantly in noise figure, gain, or package type, requiring careful validation of electrical characteristics before substitution.