MAR-3+

Overview

The MAR-3+ is a monolithic microwave integrated circuit (MMIC) amplifier manufactured by Mini-Circuits, designed for broadband radio frequency applications. It operates over a frequency range from DC to 2 GHz. The device provides a typical gain of 17.8 dB with a noise figure of 3.5 dB. It requires a supply voltage of 5 V and draws a current of 25 mA. Key performance metrics include a P1dB compression point of 10 dBm and an output third-order intercept point (OIP3) of 25.5 dBm. The component is housed in a surface-mount package suitable for integration into various RF systems.

Feature Summary

• Broadband operation covering DC to 2 GHz
• High linear performance with elevated OIP3
• Low noise figure for sensitive receiver stages

Applications

• RF test and measurement instrumentation
• Wireless communication base stations
• Signal generation and distribution networks

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to ensure correct packaging and tape-and-reel specifications. Confirm that the requested variant matches the required frequency and electrical parameters. Cross-reference the part number with authorized distributors to validate authenticity and traceability. Ensure compatibility with standard SMT assembly processes for the specified package type.

Selection Notes

Select this component when a wide bandwidth extending to DC is required alongside moderate gain. Consider the 5 V supply requirement and 25 mA current draw for power budgeting. Evaluate the 3.5 dB noise figure against system sensitivity requirements. Assess the 10 dBm P1dB limit for linearity needs in signal chain placement.

Part Context

The MAR-3+ belongs to the MAR series of MMIC amplifiers from Mini-Circuits, which are known for their versatility in RF design. This series offers a balance of gain, noise, and linearity for general-purpose applications. The component is widely used in commercial and industrial RF modules where reliable performance across a broad spectrum is essential.

Replacement Considerations

Public confirmed substitute part numbers: None identified.