A72

Overview

The A72 is a general-purpose RF amplifier IC from MACOM Technology Solutions, designed for high reliability in demanding environments. It operates within a frequency range of 2 MHz to 700 MHz, providing a typical gain of 15 dB and a noise figure of 3.3 dB. The device features a P1dB output power of 12.5 dBm and requires a supply voltage of 5 V with a current consumption of 31 mA. Packaged in a hermetic TO-8 form factor with four leads, it supports cascading capabilities for signal chain applications.

Feature Summary

• Hermetic packaging ensures high reliability for aerospace and defense applications
• Cascadable design allows for flexible signal chain integration
• General-purpose RF architecture suitable for broad frequency coverage

Applications

• GPS receiver front-end amplification
• Aerospace and defense communication systems
• Test and measurement equipment signal conditioning

Procurement Notes

Verify the specific datasheet version and manufacturer part marking against the required frequency specifications, as some sources indicate variations between 5-500 MHz and 2-700 MHz ranges. Confirm that the TO-8 package meets environmental standards for the target application. Ensure compatibility with the 5V supply requirement and check for any recent product change notices affecting performance parameters or availability.

Selection Notes

Select the A72 when a hermetically sealed, cascadable RF amplifier is required for frequencies up to 700 MHz. Its low noise figure and moderate gain make it suitable for sensitive receiver stages. Consider the TO-8 package size and lead count for board layout constraints. Verify that the 31 mA supply current fits within the system power budget and that the 5V operation aligns with existing circuitry.

Part Context

The A72 belongs to MACOM's series of high-reliability RF amplifiers, often utilized in critical infrastructure where component failure is not an option. As a cascadable unit, it enables designers to build multi-stage amplification chains without complex impedance matching networks at each stage. This characteristic simplifies design while maintaining signal integrity across the specified bandwidth.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Users should consult MACOM directly for qualified alternatives if the A72 becomes obsolete or unavailable.

FAQ

Is the A72 amplifier cascadable?

Yes, the A72 is designed to be cascadable, allowing multiple units to be connected in series for increased gain.

What is the operating frequency range of the A72?

The A72 operates within a frequency range of 2 MHz to 700 MHz.