The HMC121G8 is an absorptive voltage variable attenuator provided in a surface-mount hermetic package. It features wide bandwidth (DC - 8 GHz) and low phase shift. It is ideal for 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. Applications include military ECM and communications as well as commercial microwave radios and VSAT.
The HMC121G8 is an absorptive voltage variable attenuator provided in a surface-mount hermetic package. It features an on-chip reference attenuator designed for use with an external op-amp to provide simple single-voltage attenuation control.
Ideal for designs where an analog control signal must manage RF signal levels over a 30 dB amplitude range, this device is suitable for applications such as AGC circuits and temperature compensation of multiple gain stages. Common uses include military ECM, communications, commercial microwave radios, and VSAT systems.
| Frequency Range | DC - 8 GHz |
|---|---|
| Attenuation Range | 30 dB |
| Insertion Loss (DC - 4 GHz) | 1.5 to 3.0 dB |
| Operating Temperature | -55 to +125 deg C |
The device operates from DC up to 8 GHz.
It provides an attenuation range of 30 dB.
The control voltage must be between -6.0 Vdc and +1.0 Vdc.