A CMOS 650 MHz seventh-order current-mode 0.05° equiripple linear phase filter

Xi Zhu*, Yichuang Sun, James Moritz

*Corresponding author for this work

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

2 Citations (Scopus)

Abstract

Read/write channels for hard disk drives (HDD) require high-frequency continuous time filters (CTF) [1-5]. A 650 MHz current-mode seventh-order 0.05° equiripple linear phase low-pass filter for computer hard disk read/write channels with data rates up to 1Gbit/s is presented in this paper. It is implemented in CMOS using a leap-frog multiple loop feedback structure. The operational transconductance amplifier (OTA) used is based on a differential pair and uses source degeneration to achieve linearization and tuning. Simulated using a standard 0.18μm CMOS process, the dynamic range at 1% THD of the filter is 48dB, cut-off frequency can be tuned from 590MHz to 690MHz, group delay ripple is about 5%, and power consumption is 370mW from supply voltage of 2.5V.

Original languageEnglish
Title of host publication2007 50th Midwest Symposium on Circuits and Systems, MWSCAS - Conference Proceedings
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages167-170
Number of pages4
ISBN (Print)1424411769, 9781424411764
DOIs
Publication statusPublished - 2007
Externally publishedYes
Event2007 50th Midwest Symposium on Circuits and Systems, MWSCAS - Conference - Montreal, QC, Canada
Duration: 5 Aug 20078 Aug 2007

Other

Other2007 50th Midwest Symposium on Circuits and Systems, MWSCAS - Conference
CountryCanada
CityMontreal, QC
Period5/08/078/08/07

Fingerprint Dive into the research topics of 'A CMOS 650 MHz seventh-order current-mode 0.05° equiripple linear phase filter'. Together they form a unique fingerprint.

Cite this