Apparatus and method to access a plurality of pn-junctions with a limited number of pins
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United States of America Patent
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Issued Date -
Aug 18, 2005
app pub date -
Feb 18, 2004
filing date -
Feb 18, 2004
priority date (Note) -
Abandoned
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Abstract
In one embodiment, a plurality of pn-junctions are grouped into n(n-1)/2 pairs (where n is an integer greater than 1) and each pn-junction pair includes a first pn-junction coupled antiparallel to a second pn-junction. In addition, n access points are coupled to the plurality of pn-junctions, and through the n access points n-1 pn-junctions are simultaneously accessible. In another embodiment, an integrated circuit is coupled to the plurality of pn-junctions via the n access points. In one embodiment, the integrated circuit may be configured as a temperature measurement IC and the plurality of pn-junctions may be used as temperature sensors. In this embodiment, the temperature measurement IC may be configured to access the first pn-junction independently from the second pn-junction and may be configured to access n-1 pn-junctions simultaneously to perform temperature measurements.
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