CaltechAUTHORS
  A Caltech Library Service

Bandwidth Enhancement for Transimpedance Amplifiers

Analui, Behnam and Hajimiri, Ali (2004) Bandwidth Enhancement for Transimpedance Amplifiers. IEEE Journal of Solid-State Circuits, 39 (8). pp. 1263-1270. ISSN 0018-9200. http://resolver.caltech.edu/CaltechAUTHORS:ANAieeejssc04

[img]
Preview
PDF
See Usage Policy.

978Kb

Use this Persistent URL to link to this item: http://resolver.caltech.edu/CaltechAUTHORS:ANAieeejssc04

Abstract

A technique for bandwidth enhancement of a given amplifier is presented. Adding several interstage passive matching networks enables the control of transfer function and frequency response behavior. Parasitic capacitances of cascaded gain stages are isolated from each other and absorbed into passive networks. A simplified design procedure, using well-known low-pass filter component values, is introduced. To demonstrate the feasibility of the method, a CMOS transimpedance amplifier (TIA) is implemented in a 0.18-μm BiCMOS technology. It achieves 3 dB bandwidth of 9.2 GHz in the presence of a 0.5-pF photodiode capacitance. This corresponds to a bandwidth enhancement ratio of 2.4 over the amplifier without the additional passive networks. The trans-resistance gain is 54 dB[ohm], while drawing 55 mA from a 2.5-V supply. The input sensitivity of the TIA is -18 dBm for a bit error rate of 10^-12.


Item Type:Article
Additional Information:“©2004 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.” Manuscript received December 9, 2003; revised March 19, 2004. The authors would like to thank Jazz Semiconductor (formerly Conexant Systems) for fabricating the chip and M. Racanelli, S. Stetson, and A. Karroy for their support. They also acknowledge I. Aoki, H. Hashemi, D. Ham, J. Buckwalter, C. White, A. Komijani, H. Wu, S. Mukhtar, and S. Kee from Caltech’s CHIC group for useful discussions and comments on the manuscript. They would also like to thank the Lee Center for Advanced Networking for supporting this project.
Subject Keywords:Bandwidth enhancement, integrated circuits, low-pass filter, matching networks, passive networks, transimpedance amplifier (TIA), wide-band amplifiers
Record Number:CaltechAUTHORS:ANAieeejssc04
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:ANAieeejssc04
Alternative URL:http://dx.doi.org/10.1109/JSSC.2004.831783
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:463
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:21 Jun 2005
Last Modified:26 Dec 2012 08:40

Repository Staff Only: item control page