Title :
Fixed time constant AGC circuits
Author_Institution :
Dept. of Electr. Eng., Columbia Univ., New York, NY, USA
Abstract :
The generalized design of Automatic Gain Control (AGC) circuits that have constant settling time is described. Each of the major components of the AGC circuit is modeled and the criteria to obtain a gain settling time independent of the absolute gain is determined. The method developed works with arbitrary monotonic nonlinear functions in the gain control characteristic of the variable gain amplifier. Three AGC circuits are simulated at the behavioral level to show the benefits of the technique developed
Keywords :
CMOS analogue integrated circuits; amplifiers; automatic gain control; nonlinear network analysis; automatic gain control; behavioral level simulation; constant settling time; fixed time constant AGC circuits; generalized design; monotonic nonlinear functions; variable gain amplifier; Bandwidth; Circuit simulation; Circuits and systems; Detectors; Dynamic range; Filters; Gain control; Laboratories; Microelectronics; Voltage;
Conference_Titel :
Circuits and Systems, 1997. ISCAS '97., Proceedings of 1997 IEEE International Symposium on
Print_ISBN :
0-7803-3583-X
DOI :
10.1109/ISCAS.1997.608694
