Product Summary

The HMC472ALP4E are broadband 6-bit GaAs IC 
digital attenuators in low cost leadless surface mount 
packages. This single positive control line per bit 
digital attenuator incorporates off chip AC ground 

capacitors for near DC operation, making it suitable 

for a wide variety of RF and IF applications. 

Covering DC to 3.8 GHz, the insertion loss is less
than 2.0 dB typical.  The attenuator bit values are 0.5 
(LSB), 1, 2, 4, 8, and 16 dB for a total attenuation of  
31.5 dB.  Attenuation accuracy is excellent at ± 0.25 dB 
typical step error with an IIP3 of +54 dBm. Six TTL/
CMOS control inputs are used to select each attenuation state. A single Vdd bias of +5V is required.