HMC291S Series

4 dB LSB Silicon 2-Bit Positive Control Digital Attenuator, 0.7 - 4.0 GHz

Catalog

4 dB LSB Silicon 2-Bit Positive Control Digital Attenuator, 0.7 - 4.0 GHz

Part	Attenuation Value [custom]	Frequency Range [Max]	Frequency Range [Min]	Package / Case
Analog Devices HMC291SE	12 dB	4 GHz	700 MHz	SOT-23-6
Analog Devices HMC291SETR	12 dB	4 GHz	700 MHz	SOT-23-6

Catalog

4 dB LSB Silicon 2-Bit Positive Control Digital Attenuator, 0.7 - 4.0 GHz

Key Features

• RoHS compliant product

• 4 dB LSB steps to 12 dB

• Single positive control per bit, 0/+3V or +5V

• Typical step error : ±0.3 dB

• Miniature SOT 26 package: 9 mm2

Description

The HMC291SE is a general purpose broadband 2-bit positive control silicon IC digital attenuator in 6 lead SOT26 surface mount plastic package. The insertion loss is typically in between 0.4 dB - 1 dB through operating frequency range. The attenuator bit values are 4 (LSB) and 8 dB for a total attenuation of 12 dB. State error is excellent at ± 0.4 dB typical with an IIP3 of up to 57 dBm. Two bit control voltage inputs, toggled between 0V and +3V or +5V, are used to select each attenuation state at less than 25 µA each. A single VDD supply voltage of +3V to +5V applied through an external 4.7K Ohm resistor is required.ApplicationsCellularPCS, ISM, MMDSWLL handset & base station