Multiplication circuit capable of directly multiplying digital data with analog data
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United States of America Patent
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Apr 18, 1995
Grant Date -
N/A
app pub date -
Dec 7, 1993
filing date -
Dec 8, 1992
priority date (Note) -
Expired
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Abstract
A new and unique multiplication circuit solves the problems associated with digital multiplication circuits which operate on digital operands only. The multiplication circuit according to the present invention uses negative feedback in conjunction with an operational amplifier to maintain the output voltage of the operational amplifier at a level which depends on the logic level of the digital input datum applied to the gate of a field-effect transistor in the negative feedback loop. This unique multiplication circuit is capable of directly multiplying digital data with analog data.
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