Title :
A high slew-rate CMOS amplifier for analog signal processing
Author :
Lee, Bang W. ; Sheu, Bing J.
Author_Institution :
Dept. of Electr. Eng., Univ. of Southern California, Los Angeles, CA, USA
fDate :
6/1/1990 12:00:00 AM
Abstract :
The performances of several types of analog VLSI circuits are limited by the setting behavior of CMOS amplifiers. An amplifier with a nonsaturated input stage which achieves a high slew-rate response is presented. The impact of this slew-rate amplifier on switched-capacitor circuits is described. Prototyping amplifier circuits were fabricated by the MOSIS service using a 2-μm scalable CMOS technology. When biased at a DC power dissipation of 1 mW, the two-stage amplifier achieves a slew rate of 80 V/μs, a positive-supply rejection ratio of 73 dB, and a negative-supply rejection ratio of 57 dB and 50 kHz
Keywords :
CMOS integrated circuits; DC amplifiers; VLSI; linear integrated circuits; operational amplifiers; switched capacitor networks; 1 mW; 2 micron; CMOS amplifier; DC power dissipation; MOSIS service; VLSI; analog signal processing; negative-supply rejection ratio; nonsaturated input stage; positive-supply rejection ratio; scalable CMOS technology; setting behavior; slew-rate; switched-capacitor circuits; two-stage amplifier; CMOS process; CMOS technology; Differential amplifiers; Dynamic range; Image processing; Power amplifiers; Signal processing; Switching circuits; Very large scale integration; Voltage;
Journal_Title :
Solid-State Circuits, IEEE Journal of
