Title :
A 110 MHz 70 dB CMOS variable gain amplifier
Author :
Mostafa, Mohamed ; Elwan, Hassan ; Bellaour, Abdellatif ; Kramer, Brad ; Embabi, S.H.K.
Author_Institution :
Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA
Abstract :
This paper describes a CMOS variable gain amplifier (VGA) circuit that maintains a 3 dB bandwidth greater than 110 MHz throughout its gain range. The VGA provides a 70 dB-gain control range in 2 dB steps. The gain is controlled digitally through a decoder. The VGA is fully differential and is implemented in a standard 3 V, 0.6 μm CMOS process. The overall supply current is below 6 mA
Keywords :
CMOS analogue integrated circuits; VLSI; differential amplifiers; feedback amplifiers; radiofrequency amplifiers; 0.6 micron; 110 MHz; 3 V; 3 dB bandwidth; 70 dB; CMOS; VGA; decoder; fully differential amplifier; gain range; overall supply current; variable gain amplifier; Dynamic range; Feedback circuits; Gain control; Instruments; Linearity; Radio frequency; Radiofrequency amplifiers; Resistors; Voltage; Wireless communication;
Conference_Titel :
Circuits and Systems, 1999. ISCAS '99. Proceedings of the 1999 IEEE International Symposium on
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-5471-0
DOI :
10.1109/ISCAS.1999.780843
