HMC425

Features:

·0.5 dB LSB Steps to 31.5 dB
·Single Control Line Per Bit
·+/- 0.5 dB Typical Bit Error
·Die Size: 0.85 mm x 1.5 mm x 0.1 mm


Application

The HMC425 is ideal for:
• Fiber Optics & Broadband Telecom
• Microwave Radio & VSAT
• Military Radios, Radar, & ECM
• Space Applications


Specifications

Control Voltage (V1 - V6)	Vdd + 0.5 Vdc
Bias Voltage (Vdd)	+7.0 Vdc
Storage Temperature	-65 to +150
Operating Temperature	-55 to +85
RF Input Power (2.4 - 8.0 GHz)	+30 dBm

Description

The HMC425 die is a broadband 6-bit GaAs IC digital attenuator MMIC chip. Covering 2.4 to 8.0 GHz, the insertion loss is less then 3.5 dB typical. The attenuator bit values of HMC425 are 0.5 (LSB), 1, 2, 4, 8, and 16 dB for a total attenuation of 31.5 dB. Attenuation accuracy is excellent at ± 0.5 dB typical step error with an IIP3 of +40 dBm. Six control voltage inputs, toggled between 0 and +3 to +5V, are used to select each attenuation state. A single Vdd bias of +3 to +5V is required.