HMC680LP4ETR

RF Amplifiers Overview

The HMC680LP4ETR is a BiCMOS MMIC 5-bit digital variable gain amplifier operating from 30 MHz to 400 MHz. It provides 31 dB of gain control in 1 dB steps with a maximum gain of 27 dB and minimum gain of -4 dB. The device features low noise figure, typically 2.5 dB, and high linearity with an output IP3 of +33 dBm. It operates on a single 5 V supply, drawing 100 mA current, and is housed in a compact 24-lead QFN package measuring 4x4 mm.

RF Amplifiers Feature Summary

• Digitally controlled variable gain functionality via SPI interface
• Wide dynamic range with 31 dB step-wise attenuation capability
• High linearity performance suitable for demanding RF applications

RF Amplifiers Applications

• Wireless infrastructure base stations
• Test and measurement equipment
• Military radar systems

RF Amplifiers Procurement Notes

Verify component authenticity through authorized Analog Devices distributors or certified partners. Confirm RoHS compliance status and check for product change notifications prior to procurement. Ensure storage conditions meet moisture sensitivity level requirements to maintain device integrity during assembly.

RF Amplifiers Selection Notes

Select this component when precise digital gain control is required across the 30 MHz to 400 MHz band. Consider its low noise figure and high IP3 for signal chain integrity. Evaluate power consumption against system thermal constraints and ensure compatibility with existing digital control interfaces.

RF Amplifiers Part Context

This part belongs to the HMC680 series of BiCMOS MMICs designed for high-performance analog signal processing. It integrates gain control and buffering within a single chip, reducing board space compared to discrete solutions. The LP4 suffix indicates the specific lead frame and package configuration used for surface mount technology.

RF Amplifiers Replacement Considerations

HMC680LP4E