Title :
New highly-accurate CMOS source-degenerated based V-I converter with positive feedback
Author :
Ramirez-Angulo, J. ; Calvo, B. ; Garimella, S.R.S. ; Celma, S. ; Sanz, M.T.
Author_Institution :
Klipsch Sch. of Electr. & Comput. Eng., New Mexico State Univ., Las Cruces, NM
Abstract :
This paper presents a new CMOS V-I converter based on a positive feedback gm-boosted source degenerated differential pair. A highly linear V-I relationship is achieved by compensating both the body effect and the finite gm of the input pair transistors. Post-layout results from a 0.5 mum CMOS design supplied at 2.7 V show an accuracy in the V-I conversion of 0.993%, total harmonic distortion levels below -60 dB at 10 MHz up to 0.7 Vp-p,input and -3 dB bandwidth above 400 MHz with 2.1 mW power dissipation.
Keywords :
CMOS integrated circuits; convertors; feedback; integrated circuit design; CMOS design; CMOS source-degenerated; V-I converter; positive feedback; Bandwidth; CMOS analog integrated circuits; CMOS process; Immune system; Linearity; Negative feedback; Signal design; State feedback; Transconductance; Voltage;
Conference_Titel :
Circuit Theory and Design, 2007. ECCTD 2007. 18th European Conference on
Conference_Location :
Seville
Print_ISBN :
978-1-4244-1341-6
Electronic_ISBN :
978-1-4244-1342-3
DOI :
10.1109/ECCTD.2007.4529600
