DocumentCode
878210
Title
Input offset compensation scheme with reduced sensitivity to charge injection and leakage
Author
Ramírez-Angulo, J. ; Garimella, A. ; Garimella, L.M.K. ; López-Martin, A.J. ; Carvajal, R.G.
Author_Institution
Klipsch Sch. of Electr. & Comput. Eng., New Mexico State Univ., Las Cruces, NM, USA
Volume
42
Issue
6
fYear
2006
fDate
3/16/2006 12:00:00 AM
Firstpage
340
Lastpage
341
Abstract
A simple input offset compensation scheme, with reduced sensitivity to charge injection and leakage, is introduced. It stores an amplified version of the offset that is applied during normal operation on the input side through a capacitive divider. Offset compensation takes place in a voltage additive manner in a separate path from the input signal. Experimental results of a test chip are shown that validate the proposed scheme.
Keywords
CMOS analogue integrated circuits; charge injection; operational amplifiers; CMOS technology; capacitive divider; charge injection; charge leakage; floating-gate operational amplifier; input offset compensation scheme; sensitivity;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:20064320
Filename
1610419
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