Title :
On the optimum design of gain-boosting amplifier for high-speed and low-voltage applications
Author :
Ahmadi, Mohammad Mahdi ; Sharif-Bakhtiar, Mehrdad
Author_Institution :
Dept. of Electr. & Comput. Eng., Calgary Univ., Alta., Canada
Abstract :
Currently, there are no studies investigating the issue of speed optimization of gain-boosted cascode amplifier in low voltage applications. This is mainly because of the complicated transfer function of high-swing gain-boosted cascode amplifier structures. This paper proposes a novel and generic model for this amplifier and presents a thorough analysis of its behavior. The aim of this optimization is to eliminate the well-known slow timing component in the step response and obtain the minimum achievable settling time. An ultra high-speed amplifier is presented finally.
Keywords :
amplifiers; circuit optimisation; low-power electronics; transfer functions; circuit optimization; gain boosted cascode amplifier; gain boosting amplifier design; low voltage applications; step response; transfer function; Application software; Capacitance; Circuits; Low voltage; MOS devices; MOSFETs; Optimization methods; Threshold voltage; Transconductance; Transfer functions;
Conference_Titel :
Circuits and Systems, 2004. MWSCAS '04. The 2004 47th Midwest Symposium on
Print_ISBN :
0-7803-8346-X
DOI :
10.1109/MWSCAS.2004.1353882
