DocumentCode
2786649
Title
Accurate two-transistor current mirrors
Author
Milam, Stephen W. ; Allen, Phillip E.
Author_Institution
Sch. of Electr. Eng., Georgia Inst. of Technol., Atlanta, GA, USA
Volume
1
fYear
1994
fDate
3-5 Aug 1994
Firstpage
151
Abstract
A tuning method for current mirrors has been proposed and tested in a 2-μm CMOS process. The method compensates for mismatches in both the transconductance and threshold voltage of the transistors. Results show that with a transconductance tuning resolution of 0.78% and a threshold voltage tuning resolution of 0.088%, the mirrors can be tuned to an average accuracy of 0.25% even though the untuned circuits have current gain errors as high as 6.59%
Keywords
CMOS analogue integrated circuits; amplifiers; circuit tuning; compensation; errors; 2 micron; CMOS process; current gain errors; mismatch compensation; threshold voltage; threshold voltage tuning resolution; transconductance; transconductance tuning resolution; tuning method; two-transistor current mirrors; CMOS process; CMOS technology; Circuit optimization; Costs; MOSFETs; Mirrors; Random variables; Testing; Threshold voltage; Transconductance;
fLanguage
English
Publisher
ieee
Conference_Titel
Circuits and Systems, 1994., Proceedings of the 37th Midwest Symposium on
Conference_Location
Lafayette, LA
Print_ISBN
0-7803-2428-5
Type
conf
DOI
10.1109/MWSCAS.1994.519211
Filename
519211
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