A/D conversion circuit, temperature-sensor circuit, integrated circuit, and method of adjusting the temperature-sensor circuit
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 18, 2005
Grant Date -
Nov 18, 2004
app pub date -
Mar 4, 2004
filing date -
Mar 5, 2003
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An A/D-conversion circuit is provided that includes: a counter, which outputs a count value CT; a voltage generation circuit, which generates a monotonically increasing or monotonically decreasing analog voltage AV1; a comparator, which compares the analog voltage AV1 with an analog voltage AV2 to which A/D conversion is conducted, and outputs an signal CQ according to the comparison result; a digital filter circuit, which conducts digital filtering processing to the signal CQ and outputs a signal DQ; and a count value hold circuit EFF, which holds the count value CT from the counter based on the signal DQ. The digital filter includes hold circuits FF1 to FF3 and changes the voltage level of the signal DQ, when a pattern of the output signals Q1 to Q3 thereof matches a predetermined pattern.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully