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HMC288MS8 / HMC288MS8E

2 dB LSB 3-Bit Digital Attenuator SMT, 0.7 - 3.7 GHz

Product Details

Data Sheet
Application Notes
Package Layout
S-Parameters
Tape & Reel
ECCN: EAR99

Quality & Reliability

Environmental Data Sheet
Qualification Test Reports

Press & Media
Freq. (GHz) Function Loss (dB) Atten. Range (dB) IIP3 (dBm) Control Input (Vdc) Package
0.7 - 3.7 3-Bit Digital 1.3 2 to 14 51 0/ +3V MS8

Features

• 2 dB LSB Steps to 14 dB
• Single Positive Control Per BIT
• Monotonic: ±0.3 dB Bit Error Typical
• Miniature MSOP-8 Package, 14.8mm²

Typical Applications

• Cellular
• PCS, ISM, MMDS
• WLL applications

Functional Diagram


HMC288MS8 Functional Diagram

General Description

The HMC288MS8(E) is a broadband 3-bit positive control GaAs IC digital attenuator in an 8 lead MSOP surface mount plastic package. Covering 0.7 to 3.7 GHz, the insertion loss is typically less than 1.2 to 1.8 dB. The attenuator bit values are 2 (LSB), 4, and 8 dB for a total attenuation of 14 dB. Accuracy is excellent at ± 0.3 dB typical with an IIP3 of up to +51 dBm. Three bit control voltage inputs, toggled between 0 and +3 to +5V, are used to select each attenuation state at less than 50 uA each. A single Vdd bias of +3 to +5V applied through an external 5K Ohm resistor is required while occupying less than 14.8 mm².