General Description

The HMC290 & HMC290E are broadband 2 - bit positive control GaAs IC digital attenuators in 6 lead SOT26 surface mount plastic packages. Covering 0.7 to 4 GHz, the insertion loss is typically less than 0.7 dB. The attenuator bit values are 2 (LSB) and 4 dB for a total attenuation of 6 dB. Accuracy is excellent at ± 0.2 dB typical with an IIP3 of up to +52 dBm. Two bit control voltage inputs, toggled between 0 and +3 to +5 volts, are used to select each attenuation state at less than 50 uA each. A single Vdd bias of +3 to +5 volts applied through an external 5K Ohm resistor is required. Occupying less than 9 mm2, this is the smallest 2 - bit digital attenuator available.

特性 Features

2 dB LSB Steps to 6 dB

Single Positive Control Per BIT

+/-0.2 dB Typical Bit Error

Miniature SOT 26 Package: 9 mm2

Typical Applications

The HMC290 / HMC290E is ideal for:

? Cellular

? PCS, ISM, MMDS

? WLL Handset & BaseStation