Scheduled System Maintenance on May 29th, 2015:
IEEE Xplore will be upgraded between 11:00 AM and 10:00 PM EDT. During this time there may be intermittent impact on performance. We apologize for any inconvenience.
By Topic

Low-voltage CMOS current-mode preamplifier: analysis and design

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

1 Author(s)
Fei Yuan ; Dept. of Electr. & Comput. Eng., Ryerson Univ., Toronto, Ont., Canada

This paper presents the analysis and design of a new low-voltage fully balanced differential CMOS current-mode preamplifier for multi-Gbps series data communications. The minimum supply voltage of the proposed preamplifier is VT+Vsat. The preamplifier employs a balanced configuration to achieve large bandwidth and to minimize the effect of bias-dependent mismatches. Two new bandwidth enhancement techniques, namely inductive series peaking and current feedback that are specific to low-voltage CMOS current-mode circuits, are introduced. The inductive series peaking technique utilizes the resonant characteristics of LC networks to achieve both a flat frequency response and maximum bandwidth. Current feedback extends bandwidth, lowers input impedance, and improves dynamic range. The employment of both techniques further increases the bandwidth, reduces the value of the series peaking inductor, and improves noise performance of the pre-amplifier at high frequencies. The preamplifier has been designed using a 0.18-μm 6-metal 1-poly 1.8-V CMOS technology. Simulation results from Spectre with BSIM3.3 device models that account for device parasitics demonstrate that the preamplifier has a flat frequency response with 25.3 dB dc current gain or equivalently 60 dBΩ transimpedance gain with a 50-Ω load and bandwidth of 2.15 GHz.

Published in:

Circuits and Systems I: Regular Papers, IEEE Transactions on  (Volume:53 ,  Issue: 1 )