General Description

The HMC121G8 is an absorptive voltage variable attenuator provided in a surface-mount hermetic package. It features an on-chip reference attenuator for use with an external op-amp to provide simple single voltage attenuation control. The device is ideal in designs where an analog control signal must control RF signal levels over a 30 dB amplitude range, such as in AGC circuits and in temperature compensation of multiple gain stages.

Features

Wide Bandwidth: DC - 8 GHz

Low Phase Shift vs. Attenuation

30 dB Attenuation Range

Simplifi ed Voltage Control

Typical Applications

• Base Station Infrastructure

• Portable Wireless CATV & DBS

• MMDS & Wireless LAN

• Wireless Local Loop

• Fiber Optics, Military, Space & Test Equipment