This document describes the HMC290, a 2-bit positive control GaAs IC digital attenuator. It has a 2dB LSB step and a total attenuation of 6dB. It offers excellent accuracy with an insertion loss of less than 0.7dB and an IIP3 of up to +52dBm. The digital attenuator is suitable for applications in cellular communication, radio communication, and wireless access, among others.
The HMC290 is a broadband 2-bit positive control GaAs IC digital attenuator in a 6 lead SOT26 surface mount plastic package. It covers a frequency range of 0.7 to 4 GHz with an insertion loss typically less than 0.7 dB. The device features 2 dB LSB steps to 6 dB total attenuation and offers high accuracy with a typical bit error of +/-0.2 dB.
| Frequency Range | 0.7 - 4.0 GHz |
|---|---|
| Attenuation Range | 6 dB |
| Return Loss (0.7 - 2.7 GHz) | 20 dB |
| Package Type | SOT 26 |
| Operating Temperature | -40 to +85 °C |
The HMC290 provides attenuation states of 2 dB, 4 dB, and 6 dB.
A single Vdd bias of +3 to +5 volts applied through an external 5K Ohm resistor is required.
The typical bit error is +/-0.2 dB.