By Topic

A 1GHz, 68dB CMOS variable gain amplifier with an exponential-function circuit

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

4 Author(s)
Jia Li ; Nat. Mobile Commun. Res. Lab., Inst. of RF- & OE- ICs, Nanjing, China ; Fengyi Huang ; Xinrong Hu ; Xusheng Tang

A new wideband variable gain amplifier (VGA) is designed in digital 180nm CMOS technology for wideband and low-power application, such as UWB. The VGA consists of four stages of improved Cherry-Hooper amplifier cells, exponential function circuit and dc-offset cancellation (DCOC) network, which effectively reduces the output dc-offset. With an inductor-less technology and an additional exponential control circuit, a 3-dB bandwidth of more than 1GHz with 68dB tuning range is achieved by the proposed VGA, at the cost of 9.6mW power consumption and 0.19mm2 chip area including pads.

Published in:

Signals Systems and Electronics (ISSSE), 2010 International Symposium on  (Volume:2 )

Date of Conference:

17-20 Sept. 2010