A81-2

Overview

The A81-2 is a general-purpose RF amplifier from MACOM Technology Solutions, designed for frequencies between 10MHz and 500MHz. It features a gain of 22.5dB and a noise figure of 2.8dB. The device operates with a P1dB compression point of 15dBm and an OIP3 of 26dBm. It utilizes a TO-8 package with four leads and supports operating temperatures from -40°C to +125°C.

Feature Summary

• Discrete hybrid design utilizing thin film manufacturing processes for high reliability
• Cascadable architecture suitable for multi-stage amplification applications
• General-purpose performance optimized for accurate signal processing

Applications

• GPS receiver front-end amplification
• Wireless communication systems requiring low noise amplification
• Test and measurement equipment signal conditioning

Procurement Notes

Verify the specific datasheet version and component marking codes prior to procurement. Ensure that the TO-8 package configuration matches the target PCB footprint requirements. Confirm thermal management capabilities align with the specified operating temperature range during system integration planning.

Selection Notes

Select this component when a cascadable RF amplifier is required within the 10MHz to 500MHz frequency band. Consider its discrete hybrid construction for applications demanding high reliability and accurate performance characteristics over standard monolithic alternatives.

Part Context

The A81-2 belongs to the broader family of MACOM RF amplifiers, sharing design philosophies with models like the A82-1. It serves as a specialized solution for mid-frequency applications where hybrid thin-film technology provides distinct advantages in stability and linearity compared to other available options.

Replacement Considerations

The SMA81-2 is documented as a related variant within the same product family. Verify pinout compatibility and electrical parameter alignment before substituting.