1V CMOS Gm-C Filters Design and Applications
1V CMOS Gm-C Filters: Design and Applications discusses the design aspects of transconductor and Gm-C filter circuits, with a special focus on 1V circuit implementations. The emphasis is on high linearity voltage-to-current blocks for wireless and wirelin
- PDF / 14,363,548 Bytes
- 168 Pages / 439.37 x 666.142 pts Page_size
- 47 Downloads / 166 Views
ANALOG CIRCUITS AND SIGNAL PROCESSING SERIES Consulting Editor: Mohammed Ismail. Ohio State University
For other titles published in this series, go to www.springer.com/series/7381
Tien-Yu Lo
•
Chung-Chih Hung
1V CMOS Gm-C Filters Design and Applications
123
Dr. Tien-Yu Lo MediaTek Inc. No.1, Dusing Rd. 1 Hsinchu 30078 Hsinchu Science Park Taiwan [email protected]
Assoc. Prof. Chung-Chih Hung National Chiao Tung University Department of Electrical Engineering 1001 University Road Hsinchu 300 Taiwan [email protected]
ISBN 978-90-481-2409-1 e-ISBN 978-90-481-2410-7 DOI 10.1007/978-90-481-2410-7 Springer Dordrecht Heidelberg London New York Library of Congress Control Number: PCN applied for c Springer Science+Business Media B.V. 2009 No part of this work may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, microfilming, recording or otherwise, without written permission from the Publisher, with the exception of any material supplied specifically for the purpose of being entered and executed on a computer system, for exclusive use by the purchaser of the work. Printed on acid-free paper Springer is part of Springer Science+Business Media (www.springer.com)
This book is dedicated to Our Families
Preface
There are growing demands for low-voltage circuits and systems, especially for system-on-a-chip applications. When switched to low supply voltage, digital circuits do not suffer the degradation in performance. On the other hand, the circuit performance of analog circuits are strongly affected by reduced supply voltage. In addition, chip area should also be taken into consideration to reduce the cost of advanced multi-function SOC design. Therefore, there is urgent need to develop new design techniques for analog circuits at 1-V supply. In Chapter 2, novel transconductors with the applications for wireless and wireline systems are introduced. The transconductor is a basic building block for analog circuits, such as the Gm -C filter, continuous-time delta-sigma modulator, voltage-controlled oscillator, and multiplier. First, the configuration of a linearized transconductor for low-voltage and high-frequency applications is proposed. By using double pseudo-differential pairs and the source degeneration structure under nano-scale CMOS technology, the nonlinearity caused by short channel effect from small feature size can be minimized. Then, another transconductor with pseudo-differential structures is proposed. The linearity is improved by mobility compensation techniques as the device size is scaled down to achieve high-speed operation. Short channel effects in the nano-scale technology are discussed and eliminated, and the results show superior performance even at high-speed operation. Finally, a transconductor with the specific target for ADSL2C application is discussed. A precise model is adopted to eliminate short channel effects and high linearity performance can thus be achieved. Chapter 3 focuses on the basic con
Data Loading...
