Paper Information

Journal:   NASHRIYYAH-I MUHANDESI-I BARQ VA MUHANDESI-I KAMPYUTAR-I IRAN (PERSIAN)   FALL 2007 , Volume 5 , Number 3; Page(s) 178 To 182.
 
Paper: 

DESIGN OF A LOW-PASS SWITCHED CAPACITOR FOURTH ORDER CHEBYSHEV FILTER USING AN IMPROVED AUTO ZERO INTEGRATOR

 
Author(s):  RASHTIAN M., HASHEMIPOUR O.*, NAVI K.
 
* DEPT. OF ELECTRICAL AND COMPUTER ENG., SHAHID BEHESHTI UNIVERSITY, EVIN, TEHRAN, I.R., IRAN
 
Abstract: 

In this work the low-voltage high-speed auto zeroed integrator characteristics is improved by utilizing the non-linear properties of switches. Based on this improvement a newly designed structure for a low-pass filter is presented. The designed filter is a fourth order Chebyshev with pass band frequency of 500 KHz and sampling frequency of 5 MHz. Based on this method a fast and accurate sample and hold structure is introduced. The designed work is simulated using 0.25mm CMOS technology at 1.2 V supply voltage.

 
Keyword(s): AUTO ZEROED INTEGRATOR, HIGH-SPEED, LOW VOLTAGE SWITCHED CAPACITOR CIRCUIT, COMMON MODE FEEDBACK
 
References: 
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