DESIGN OPTIMIZATION AND TESTING OF A GAAS SWITCHED-CAPACITOR FILTER

被引：9

作者：

HAIGH, DG

TOUMAZOU, C

HARROLD, SJ

STEPTOE, K

SEWELL, JI

BAYRUNS, R

机构：

[1] UNIV LONDON IMPERIAL COLL SCI & TECHNOL,DEPT ELECT ENGN,LONDON SW7 2BT,ENGLAND

[2] UNIV MANCHESTER,INST SCI & TECHNOL,DEPT ELECT ENGN & ELECTR,MANCHESTER M60 1QD,LANCS,ENGLAND

[3] CADENCE DESIGN SYST UK LTD,MAIDENHEAD,BERKS,ENGLAND

[4] UNIV GLASGOW,DEPT ELECTR & ELECT ENGN,GLASGOW G12 8QQ,SCOTLAND

[5] ANADIGICS CORP,RF & DIGITAL PROD DEV,WARREN,NJ

来源：

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS | 1991年 / 38卷 / 08期

关键词：

D O I：

10.1109/31.85625

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper is concerned with the design of high frequency switched-capacitor filters implemented using GaAs MESFET technology. The design techniques developed are illustrated by means of a 2nd-order switched-capacitor bandpass filter designed to operate at a switching frequency of 500 MHz. The design incorporates a recently proposed operational amplifier architecture with a simulated gain of 60 dB and a recently proposed switch driver circuit. Amplifiers are characterized in terms of settling time performance and a general procedure is presented for optimization of the switched-capacitor circuit to maximize switching frequency. Measurements on a fabricated chip confirm the design of the filter and its components.

引用

页码：825 / 837

页数：13

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