DocumentCode
888188
Title
Compensation for voltage dependence of diffused feedback resistors in operational amplifiers
Author
Amemiya, Y. ; Kato, K.
Volume
14
Issue
6
fYear
1979
Firstpage
1118
Lastpage
1120
Abstract
A simple and useful method is proposed to decrease the nonlinearity of the diffused resistors used in the feedback loop of an operational amplifier. The voltage dependence of the diffused resistor is decreased by controlling the potential of the island containing the resistor. An application to improve the linearity of the output amplifier in D/A converters is described. The method allows the diffused feedback resistors to have a linearity of better than 0.005 percent accuracy.
Keywords
Digital-analogue conversion; Operational amplifiers; Resistors; digital-analogue conversion; operational amplifiers; resistors; Feedback loop; Impurities; Linearity; MOSFETs; Operational amplifiers; Resistors; Resists; Solid state circuits; Video recording; Voltage;
fLanguage
English
Journal_Title
Solid-State Circuits, IEEE Journal of
Publisher
ieee
ISSN
0018-9200
Type
jour
DOI
10.1109/JSSC.1979.1051326
Filename
1051326
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