A DC-2.5GHz voltage variable attenuator in 0.18-μm CMOS technology

I. L. Abdalla, A. Allam, Ramesh Pokharel, Hongting Jia

Research output: Contribution to conferencePaperpeer-review

4 Citations (Scopus)

Abstract

A CMOS variable voltage attenuator(VVA) with wide bandwidth has been designed and fabricated in a 0.18-μm CMOS process. Four bridge-T stages are cascaded to achieve 12 dB of dynamic range attenuation over a frequency range from DC up to 2.5 GHz. Cascaded bridge-T stages can be programmed to achieve the full scale attenuation and ensure good input and output matching. The design operates with 1.5-dB step size and with a maximum input power of -13 dBm in the entire frequency DC-2.5 GHz range. Worst case S11 is -11.5 dB across the frequency band. The design achieves an input third order intercept point (IIP3) of+31 dBm at maximum-attenuation.

Original languageEnglish
Pages352-355
Number of pages4
DOIs
Publication statusPublished - Feb 5 2015
Event2014 IEEE Asia Pacific Conference on Circuits and Systems, APCCAS 2014 - Ishigaki Island, Okinawa, Japan
Duration: Nov 17 2014Nov 20 2014

Other

Other2014 IEEE Asia Pacific Conference on Circuits and Systems, APCCAS 2014
CountryJapan
CityIshigaki Island, Okinawa
Period11/17/1411/20/14

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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