HMC274

Obsolete

1 dB LSB 5-Bit Digital Attenuator SMT, 0.7 - 2.7 GHz

Data Sheet Product Selection Table
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Overview

  • 1 dB LSB Steps to 31 dB
  • Single Positive Control (+3 to +5V)/Bit
  • ±0.5 dB Typical Bit Error
  • Small QSOP16 Plastic Package

The HMC274QS16(E) is a broadband 5-bit positive control GaAs IC digital attenuator in a 16 lead QSOP plastic package. Covering 0.7 to 2.7 GHz the insertion loss is typically less than 2.3 dB. The attenuator bit values are 1 (LSB), 2, 4, 8, and 16 dB for a total attenuation of 31 dB. Accuracy is excellent at ± 0.5 dB typical with an IIP3 of up to +50 dBm. Five bit control voltage inputs, toggled between 0 and +3 to +5 volts, are used to select each attenuation state. A single Vdd bias of +3 to +5 volts applied through an external 5K Ohm resistor is required.

Applications

  • Cellular/PCS/3G Infrastructure
  • 2.4 GHz ISM Radios
  • Wireless Data 

Suggested Replacement Parts

HMC542B RECOMMENDED FOR NEW DESIGNS

0.5dB LSB GaAs MMIC 6-Bit Digital Serial Control Attenuator, DC - 4 GHz

HMC274
1 dB LSB 5-Bit Digital Attenuator SMT, 0.7 - 2.7 GHz
hmc274qs16_fbl
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Documentation

Obsolete Data Sheet 1

Data Sheet

This is the most up-to-date revision of the Data Sheet.

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Software Resources

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Hardware Ecosystem

Parts Product Life Cycle Description
HMC542B
RECOMMENDED FOR NEW DESIGNS 0.5dB LSB GaAs MMIC 6-Bit Digital Serial Control Attenuator, DC - 4 GHz
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Tools & Simulations

S-Parameter 1

Evaluation Kits
EVAL-HMC274QS16
HMC274QS16 Evaluation Board

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