Integrated circuit D/A converter
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United States of America Patent
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-
Dec 1, 1998
Grant Date -
N/A
app pub date -
Feb 12, 1997
filing date -
Feb 14, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A D/A converter implemented by an integrated circuit has a first section for conversion of higher-order N1 bits of an input digital signal to output a first current signal I.sub.1, a second section for conversion of lower-order N2 bits of the input digital signal to output a second current signal I.sub.2, a dividing section for dividing the second current signal to output a third current signal I.sub.2 .times.1/2.sup.N2, and an adding section for adding the first and third current signal. The D/A converter can be implemented by a reduced number of MOSFETs and has a reduced occupied area.
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