A411

Overview

The A411 is a discrete hybrid RF amplifier from MACOM Technology Solutions, designed for broadband applications between 5 MHz and 450 MHz. It utilizes thin film manufacturing processes to ensure accurate performance and high reliability. The device features a single-stage bipolar transistor feedback design with an impedance transformer for high dynamic range and efficiency. It is available in hermetically sealed TO-8 and surface mount packages, with MIL-STD-883 environmental screening options. Typical specifications include a 3.0 dB noise figure, 16 mA current consumption at +5 Vdc, +29 dBm third-order intercept point at +8 Vdc, and +14.5 dBm output level at +8 Vdc.

Feature Summary

• Discrete hybrid design using thin film manufacturing for accuracy and reliability
• Single-stage bipolar transistor feedback architecture with impedance transformer
• Hermetically sealed TO-8 and surface mount package options
• MIL-STD-883 environmental screening availability

Applications

• Point-to-point radio systems
• Aerospace and defense electronics
• Electronic warfare (EW) equipment
• IMS infrastructure

Procurement Notes

Verify the specific package variant required, as both TO-8 and surface mount versions exist. Confirm if MIL-STD-883 environmental screening is necessary for the application, as this is an optional feature. Ensure the supplier documentation explicitly references the A411 part number to avoid confusion with similar cascadable amplifiers like the CA411 or A87 series. Cross-reference datasheet revisions to confirm electrical parameters match system requirements.

Selection Notes

Select the A411 when a broadband RF amplifier covering up to 450 MHz is required with high linearity and low noise characteristics. The choice depends on the need for a discrete hybrid design offering superior performance consistency compared to monolithic alternatives. Consider the power supply constraints, as the device operates efficiently at +5 Vdc and +8 Vdc. Evaluate thermal management needs based on the hermetic package type selected for the specific environmental conditions of the deployment.

Part Context

The A411 belongs to MACOM's portfolio of high-performance analog RF and microwave components. It is categorized as a cascadable amplifier within the company's discrete hybrid product line. This family of devices is engineered for demanding applications requiring precise gain control and stability across wide frequency bands. The component supports next-generation communication systems and specialized electronic warfare platforms requiring reliable signal amplification.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material. Similar functional descriptions list Tyco Electronics parts such as CA411, A87, and A87-1, which cover overlapping frequency ranges but may differ in specific electrical characteristics or packaging. Verify compatibility before substitution.