A novel high-order temporal moving average filter in sampler-based discrete-time receiver

  • Soo Hwan Shin
  • , Yong Ho Cho
  • , Sung Hun Jo
  • , Hyung Joun Yoo

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

A discrete-time (DT) filter with high-order temporal moving average (TMA) by actively-weighted charge sampling is proposed. The weight of sampled charge can be effectively controlled by digitally-controlled variable operational transconductance amplifier (OTA). By switching the control transistors of the OTA, the transconductance can be changed according to the desired weight ratio. Therefore, high-order TMA operation can be possible. It has small size, increased voltage gain, and low parasitic effects. The suggested high-order TMA filter is implemented in the TSMC 0.18 μm CMOS process. DC current is about 9.7 mA.

Original languageEnglish
Title of host publication2011 IEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2011
Pages117-120
Number of pages4
DOIs
StatePublished - 2011
Event4th IEEE International Symposium on Radio-Frequency Integration Technology, RFIT2011 - Beijing, China
Duration: 30 Nov 20112 Dec 2011

Publication series

Name2011 IEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2011

Conference

Conference4th IEEE International Symposium on Radio-Frequency Integration Technology, RFIT2011
Country/TerritoryChina
CityBeijing
Period30/11/112/12/11

Keywords

  • actively-weighted charge sampling
  • charge sampler
  • DT filter
  • TMA
  • transconductance

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