Title :
Low-Voltage CMOS Single Ended and Fully Differential Amplifier with Programmable Gain.
Author :
Ruiz-Chavira, Jose Luis ; Ramirez-Angulo, Jaime ; Lopez-Martin, Antonio J. ; Carvajal, Ramón G. ; Torralba, Antonio
Author_Institution :
Klipsch Sch. of Electr. & Comput. Eng., New Mexico State Univ., Las Cruces, NM
Abstract :
Singled ended and fully differential low-voltage programmable gain amplifiers are presented. They have close to rail-to-rail input/output swing, and wide bandwidth. The operation is based on the technique of the floating voltage controlled voltage source in the feedback loop of an op-amp. Experimental results are shown that validate the proposed design in 0.5mum CMOS technology with a single supply VDD=1.5V and with NMOS and PMOS threshold voltages of 0.73V and 0.93V respectively.
Keywords :
CMOS analogue integrated circuits; differential amplifiers; operational amplifiers; programmable circuits; 0.5 micron; 0.73 V; 0.93 V; 1.5 V; CMOS single ended amplifier; CMOS technology; NMOS threshold voltages; PMOS threshold voltages; floating voltage controlled voltage source; fully differential amplifier; low-voltage programmable gain amplifiers; operational amplifiers; Bandwidth; CMOS technology; Differential amplifiers; Feedback loop; Low voltage; MOS devices; Operational amplifiers; Rail to rail inputs; Threshold voltage; Voltage control;
Conference_Titel :
Circuits and Systems, 2007. ISCAS 2007. IEEE International Symposium on
Conference_Location :
New Orleans, LA
Print_ISBN :
1-4244-0920-9
Electronic_ISBN :
1-4244-0921-7
DOI :
10.1109/ISCAS.2007.378718
