MADL-011008-14120T

RF Diode Overview

The MADL-011008-14120T is a silicon PIN diode limiter manufactured by MACOM Technology Solutions, designed for medium signal applications within the 50 MHz to 4 GHz frequency range. It operates without DC bias and provides low insertion loss alongside fast signal response times. The device features a lead-free 1.2 x 1.5 mm 6-lead PQFN package with an exposed ground pad. Electrical specifications at 2.7 to 3.0 GHz include a typical insertion loss of 0.15 dB, input return loss of 20 dB, and a P1dB compression point of +10 dBm. It supports up to +40 dBm peak incident power and +30 dBm CW incident power, with a flat leakage of +16 dBm.

RF Diode Feature Summary

• Provides passive limiting functionality to protect sensitive receiver components such as LNAs, detectors, and mixers from high-power signals.
• Features a small I-region length specifically engineered for medium signal applications, ensuring fast recovery times.
• Operates effectively at zero bias, maintaining low insertion loss and low flat leakage power simultaneously.

RF Diode Applications

• Protection of low noise amplifiers (LNAs) in RF front-end circuits.
• Safeguarding detector components against excessive input power levels.
• Shielding mixer stages from high-power interference signals.

RF Diode Procurement Notes

Verify the specific ordering suffix when purchasing. The -14120T suffix indicates tape and reel packaging, whereas -141200 denotes bulk packaging. Confirm that the required quantity aligns with the manufacturer's standard reel sizes. Ensure ESD precautions are observed during handling due to the sensitivity of the silicon integrated circuit structure.

RF Diode Selection Notes

Select this component for applications requiring passive protection in the 50 MHz to 4 GHz band. It is suitable where low insertion loss and fast recovery are critical. Verify that the maximum incident power requirements do not exceed the absolute maximum ratings. Consider the 1.2 x 1.5 mm package dimensions for board layout constraints.

RF Diode Part Context

This part belongs to the MADL-011008 family of PIN diode limiters. The -14120T variant specifically designates the tape and reel packaging format. Other variants in the series may offer different packaging options or sample boards. The core electrical performance remains consistent across the family for the specified frequency range.

RF Diode Replacement Considerations

No direct public substitute part numbers are confirmed in the official documentation. Evaluate alternative limiters based on matching frequency range, power handling capabilities, and package footprint compatibility if replacement is necessary.

RF Diode FAQ

Does the MADL-011008 require DC bias for operation?

No, the device is designed to operate passively at zero bias, providing limiting functionality without external DC power.

What is the recovery time specification?

The recovery time to within 1 dB of final insertion loss is typically 50 ns under peak incident power conditions of +30 dBm with a 1 µSec pulse width and 0.1% duty cycle.

How should the exposed pad be connected?

The exposed pad centered on the package bottom must be connected to both RF and DC ground to ensure proper operation and thermal management.