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HMC920

RECOMMENDED FOR NEW DESIGNS

Active Bias Controller SMT

Data Sheet Product Selection Table

Part Models: 2
1ku List Price: price unavailable

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Overview

Single Positive Voltage Supply (5V to 16.5V)
Adjustable Drain Voltage 3V to 15V
Adjustable Drain Current up to 500mA
Internal Negative Voltage Generator
Active Bias Current Regulation
Stable Bias Current Over Temperature and Process Variation and Aging
Short Circuit Protection (Power Foldback)
Adjustable Over/Under-Current Alarm
Adjustable Low Vdd Voltage Alarm
Automated Power-up Sequencing
Enable Input for Active Bias Control
Trigger-out Output for Daisy Chain Power-Up and Power-Down Sequencing

HMC920LP5E is an active bias controller which generates a regulated Drain voltage and actively adjusts the gate voltage of an external amplifier to achieve constant bias current. It can be used to bias any enhancement and depletion type amplifiers operating in Class-A regime with Drain voltages (VDRAIN) from 3V to 15V and drain currents (IDRAIN) up to 500mA, offering a complete biasing solution.

The HMC920LP5E achieves excellent bias stability over supply, temperature and process variations, and eliminates the required calibration procedures used to prevent RF performance degradation due to such variations.

The HMC920LP5E is housed in an RoHS compliant 5x5 mm QFN leadless package with an exposed backside pad to improve thermal characteristics.

Applications

Cellular Base Station
Wireless Infrastructure Equipment
Microwave Radio & VSAT
Military & Space
Test Instrumentation

Part Models: 2
1ku List Price: price unavailable

Documentation

Data Sheet 1

HMC920 Active Bias Controller Data Sheet 09/07/2023

Application Note 2

AN-2622: Selecting an Analog Devices RF Low Noise Amplifier 09/04/2025

AN-1363: Meeting Biasing Requirements of Externally Biased RF/Microwave Amplifiers with Active Bias Controllers 05/13/2020

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
HMC920LP5E	32-Lead QFN (5mm x 5mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
HMC920LP5ETR	32-Lead QFN (5mm x 5mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys