Title :
Effect of the transistor mismatches on the performance of fully-differential OTAs
Author :
Silva-Martínez, José ó
Author_Institution :
Dept. of Integrated Circuits Design, Inst. Nacional de Astrofisica, Opt. y Electron., Puebla, Mexico
fDate :
30 May-2 Jun 1994
Abstract :
This paper deals with the effect of the transistor mismatches on the performance of Fully Differential Operational Transconductance Amplifiers (FDOTA). A simple macro model including transistor mismatches is proposed. From this model, the four transfer functions that determine the behavior of the FDOTA can be easily obtained. These transfer functions are further discussed and some clues in the design of high-performance FDOTAs are provided. Experimental results for a 6 μA/V FDOTA fabricated in a 1.2 μm CMOS process are in good agreement with the theoretical and simulated ones
Keywords :
CMOS analogue integrated circuits; differential amplifiers; operational amplifiers; transfer functions; 1.2 micron; CMOS process; FDOTAs; Fully Differential Operational Transconductance Amplifiers; macro model; transfer functions; transistor mismatches; CMOS process; Circuit topology; Detectors; Integrated circuit synthesis; Integrated optics; Optical distortion; Transconductance; Transducers; Transfer functions; Voltage;
Conference_Titel :
Circuits and Systems, 1994. ISCAS '94., 1994 IEEE International Symposium on
Conference_Location :
London
Print_ISBN :
0-7803-1915-X
DOI :
10.1109/ISCAS.1994.409353
