Title :
Sound design of low power nested transconductance-capacitance compensation amplifiers
Author :
Xie, Xiang ; Schneider, M.C. ; Sanchez-Sinencio, E. ; Embabi, S.H.K.
Author_Institution :
Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA
fDate :
6/10/1999 12:00:00 AM
Abstract :
An amplifier design approach is presented which is based on an all region MOS transistor model. Low power analogue circuits are designed using the presented approach. For illustrative purposes a nested transconductance-capacitance compensated (NGCC) operational amplifier is designed. Verification was carried out using a CMOS chip prototype which yields an op-amp with 105 dB gain, a 1.05 MHz gain-bandwidth product, 0.28 mW power consumption and 0.137 mm/sup 2/ active area for a 2 V supply voltage and 10 k/spl Omega//20pF load.
Keywords :
low-power electronics; 0.28 mW; 105 dB; 2 V; CMOS chip prototype; NGCC operational amplifier; all region MOS transistor model; amplifier design approach; low power amplifiers; low power analogue circuits; nested transconductance-capacitance compensation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19990688
