Bandgap generator providing low-voltage operation
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United States of America Patent
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N/A
Issued Date -
Nov 23, 2006
app pub date -
May 17, 2005
filing date -
May 17, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A bandgap reference circuit uses a pair of parallel loads and an op-amp driver circuit. The op-amp driver circuit uses NMOS inputs to sense voltage conditions at the loads. The configuration permits low-voltage response at low temperatures as a result of the configuration setting operating voltages above a saturation voltage. The op-amp driver provides an NMOS output, and a low-gain stage converts the NMOS output to an output corresponding to that of a conventional PMOS design.
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