Switched capacitor bandgap reference circuit

Details Switched capacitor bandgap reference circuit Switched capacitor bandgap reference circuit

2006-03-07

2006-03-07

Vu, Bao Q. (Department: 2838)

Electricity: power supply or regulation systems

Self-regulating

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

C323S315000, C327S543000, C327S337000

Reexamination Certificate

active

07009373

ABSTRACT:
A circuit is provided which is adapted to compensate for the inherent parasitic capacitance which is implicit in switched capacitor circuits. By shielding the parasitic capacitance to a common node of the circuit and then connecting this shield to a voltage source that tracks the voltage change at the input to an amplifier, the present invention provides a bootstrapping effect that enables a minimization of the effect of the parasitic capacitance. The invention also provides a circuit that is adapted to compensate for curvature in the output of a switched capacitor bandgap reference.

REFERENCES:
patent: 5059820 (1991-10-01), Westwick
patent: 5352972 (1994-10-01), Pernici et al.
patent: 5352973 (1994-10-01), Audy
patent: 5821807 (1998-10-01), Brooks
patent: 5867012 (1999-02-01), Tuthill
patent: 6060874 (2000-05-01), Doorenbos
patent: 6784725 (2004-08-01), Wadhwa et al.
Meijer, G.C.M., et al, “A New Curvature-Corrected Bandgap Reference”, IEEE Journal of Solid-State Circuits, vol. SC-17, No. 6, Dec. 1982.
Razavi, B., “CMOS Processing Technology”, Chap. 17—Design of Analog CMOS Integrated Circuits,McGraw Hill, International Edition 2001.

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