A double-MOSFET switched-capacitor auto-tuned high frequency filter

Author

Hong, Ming-Chan ; Wu, Wen-Chi ; Wang, Chrong-Kuang

Author_Institution

Dept. of Electr. Eng., Nat. Central Univ., Chung-Li, Taiwan

Volume

5

fYear

1994

fDate

30 May-2 Jun 1994

Firstpage

603

Abstract

This paper proposes an auto-tuned high frequency low distortion double-MOSFET filter. A 7 MHz fourth-order Butterworth lowpass filter for a disk-drive servo PES (Position Error Signal) system is designed and laid out using a single power supply 5 V 0.8 μm DPDM (double-poly double-metal) N-well CMOS technology. The f_3dB cutoff frequency tolerance is 1.1% simulated according to process variation and temperature change in the 0°-75°C range. The active area, including biasing, the double-MOSFET SC tuned system, and the filter, is 0.8 mm×1.3 mm, and the filter consumes 68 mW

Keywords

Butterworth filters; CMOS analogue integrated circuits; circuit tuning; low-pass filters; radiofrequency filters; switched capacitor filters; 0 to 75 C; 0.8 micron; 5 V; 68 mW; 7 MHz; SC filter; active filters; auto-tuned high frequency filter; disk-drive servo position error signal system; double-MOSFET filter; double-poly double-metal technology; fourth-order Butterworth lowpass filter; low distortion; n-well CMOS; switched-capacitor HF filter; Active filters; Circuit optimization; Clocks; Control systems; Frequency; Low pass filters; MOSFET circuits; Master-slave; Resistors; Tuning;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1994. ISCAS '94., 1994 IEEE International Symposium on

Conference_Location

London

Print_ISBN

0-7803-1915-X

Type

conf

DOI

10.1109/ISCAS.1994.409448

Filename

409448