Integrated circuit with a built-in D/A converter
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United States of America Patent
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-
Jan 4, 2000
Grant Date -
N/A
app pub date -
Oct 28, 1997
filing date -
Jun 27, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A D/A-converter-built-in integrated circuit which is provided with counter responsive to a count mode switching signal to switch between a count mode of repeating a count-up operation and a count mode of repeating a count-down operation, a D/A converter for converting a digital signal to analog form, and control means which, when supplied with a test enable signal for starting a test, causes the counter to start its counting and a selector to select and output a digital signal from the counter and then outputs the count mode switching signal to switch the count mode from the one to the other.
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