Exact curvature-correcting method for bandgap circuits

Details Exact curvature-correcting method for bandgap circuits Exact curvature-correcting method for bandgap circuits

1999-03-29

2000-12-05

Zweizig, Jeffrey

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

327513, G05F 302

Patent

active

061572454

ABSTRACT:
A curvature corrected bandgap reference voltage circuit, the output voltage of which is substantially linear and independent of the operating temperature of the circuit. The circuit includes a voltage divider network comprised of a first resistor and a second resistor connected in series. A first compensating circuit provides a first, linear, operating temperature-dependent current, and a second compensating circuit provides a second, logarithmic, operating temperature-dependent current. The first current is supplied to the first resistor of said voltage divider network, while the second current is supplied to the second resistor of the voltage divider network.

REFERENCES:
patent: 5900773 (1999-05-01), Susak
patent: 6016051 (2000-01-01), Can

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