[CPCC] TALK: January 21 Nonuniform Distributed Amplifier

Ender Ayanoglu ayanoglu at uci.edu
Tue Jan 18 17:24:25 PST 2005


A 1.8V Three-Stage 25GHz 3dB-BW Differential Non-Uniform Downsized
			Distributed Amplifier

		  Ahmad Yazdi, Denis Lin, Payam Heydari
           Center for Pervasive Communications and Computing
       Department of Electrical Engineering and Computer Science
 		   University of California, Irvine

			Friday Jan. 21, 2005
		           2:00 PM-3:00 PM

		        Engineering Tower 331

The design and implementation of a novel performance-optimized non-uniform
downsized distributed amplifier will be presented. Originally based on
distributed topology, the proposed circuit topologies will exhibit far
superior performance (lower noise-figure and higher gain-bandwidth product)
than conventional distributed circuits, while accounting for non-ideal
losses of the circuit elements. The core concept of non-uniform downsized
distributed circuits can be employed in a broad range of applications,
including the design of broadband amplifiers and output drivers for
high-speed broadband wireline systems, as well as wideband RF front-end
for wideband wireless radios.

The amplifier achieves a differential forward gain of 7.8dB over 25GHz
bandwidth. It exhibits an IIP3 of 4.7dBm. Designed using CMOS transistors
only, the circuit was fabricated in Jazz's sbc18 SiGe process and draws
30mA current from a 1.8V supply. The chip area is 1.025x1.29mm2.

[A Presentation to the 2005 International Solid-State Circuits Conference
(ISSCC)]

Directions: http://www.cpcc.uci.edu/Directions-CPCC-UCI.htm


More information about the CPCC mailing list