Title :
A Differential CMOS Automatic Gain Control Amplifier
Author :
Bozomitu, R.G. ; Cehan, V.I.
Author_Institution :
Gh. Asachi Tech. Univ., Iasi
Abstract :
In this paper, a differential CMOS automatic gain control amplifier is presented. The proposed architecture uses a differential variable gain amplifier, implemented with a Gilbert cell and provides an automatic gain control amplifier for both alternations of the input signal. It yields almost 20 dB dynamic range of input 100 MHz sinusoidal signal and provides a constant differential output of 200 mVpp with AGC loop bandwidth of 1 MHz. The power consumption is 50 mW from a single 3.3 V voltage supply.
Keywords :
CMOS integrated circuits; automatic gain control; differential amplifiers; Gilbert cell; differential CMOS automatic gain control amplifier; frequency 1 MHz; frequency 100 MHz; power 50 mW; power consumption; Circuits; Detectors; Differential amplifiers; Dynamic range; Feedback loop; Frequency; Gain control; MOS devices; Output feedback; Voltage control;
Conference_Titel :
Signals, Circuits and Systems, 2007. ISSCS 2007. International Symposium on
Conference_Location :
Iasi
Print_ISBN :
1-4244-0969-1
Electronic_ISBN :
1-4244-0969-1
DOI :
10.1109/ISSCS.2007.4292677
