A 3-V high-bandwidth integrator for magnetic disk read channel continuous-time filtering applications

Author

Wang, Yong ; Uehara, Gregory T. ; Ren, Min

Author_Institution

Hawaii Univ., Honolulu, HI, USA

fYear

1998

fDate

11-14 May 1998

Firstpage

427

Lastpage

430

Abstract

This paper describes circuit techniques for the implementation of low-voltage CMOS integrators for continuous-time filters. A prototype sixth-order Butterworth lowpass filter with two programmable zeros was designed and developed to demonstrate the proposed techniques. The filter is suitable for magnetic disk read channel applications and achieves a 4.8:1 bandwidth tuning range with a maximum -3 dB bandwidth of 130 MHz. The spurious free dynamic range for an input signal of 300 mV peak-to-peak differential is greater than 40 dB. The prototype filter alone consumes 130 mW from a 3.0 V supply and is implemented in a 0.35 μm CMOS technology

Keywords

Butterworth filters; CMOS analogue integrated circuits; continuous time filters; integrating circuits; low-pass filters; magnetic disc storage; 0.35 micron; 130 MHz; 130 mW; 3 V; 300 mV; continuous-time filtering applications; high-bandwidth integrator; low-voltage CMOS integrators; magnetic disk read channel; programmable zeros; sixth-order Butterworth lowpass filter; submicron CMOS technology; CMOS process; CMOS technology; Digital filters; Digital signal processing; Filtering; Frequency; Integrated circuit technology; Magnetic separation; Nonlinear filters; Prototypes;

fLanguage

English

Publisher

ieee

Conference_Titel

Custom Integrated Circuits Conference, 1998. Proceedings of the IEEE 1998

Conference_Location

Santa Clara, CA

Print_ISBN

0-7803-4292-5

Type

conf

DOI

10.1109/CICC.1998.695012

Filename

695012