Precision voltage reference circuit with temperature compensatio

Details Precision voltage reference circuit with temperature compensatio Precision voltage reference circuit with temperature compensatio

1999-08-03

2000-06-13

Riley, Shawn

Electricity: power supply or regulation systems

Self-regulating

Using a three or more terminal semiconductive device as the...

323907, G05F 316, G05F 320

Patent

active

060753544

ABSTRACT:
A precision voltage reference circuit for generating a constant reference voltage over a range of operating temperatures uses a bandgap voltage generator which is compensated with replicated currents fed back from the bandgap stage as control currents. These currents are attenuated and fed back in proper proportions to correct for bias conditions which would otherwise vary with temperature.

REFERENCES:
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patent: 5440305 (1995-08-01), Signore et al.
patent: 5530399 (1996-06-01), Chambers et al.
patent: 5712557 (1998-01-01), Gehrt et al.
Creager, Gray, Xicor Application Notes AN44: Variable Precision References using DCPs, Jul. 1996, pp. 1-7 (http://www.xicor.com/products/Appnotes/AN044.html).

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