A/D converter with zero power mode

Details A/D converter with zero power mode A/D converter with zero power mode

1992-08-31

1994-03-15

Hoff, Marc S.

Coded data generation or conversion

Analog to or from digital conversion

Converter is part of control loop

3072963, H03K 301

Patent

active

052949281

ABSTRACT:
A semiconductor microcontroller includes the capability to perform analog to digital conversions of an analog signal representative of a variable parameter indicative of the need to exercise a control function. While the analog to digital conversions are being performed, the microcontroller processor can be placed in a sleep mode which eliminates noise arising from switching activities of the processor as a source of inaccuracy in the conversion process. At the end of the conversion, the analog to digital converter can either shut itself down or wake up the processor. Alternatively, the converter may shut itself down in response to a different user selected control signal.

REFERENCES:
patent: 4317180 (1982-02-01), Lies
patent: 4801820 (1989-01-01), Nootbaar
patent: 4906870 (1990-03-01), Gongwer
patent: 4963769 (1990-10-01), Hiltpold et al.
patent: 5023614 (1991-06-01), Fung et al.
patent: 5045717 (1991-09-01), Moen, Jr. et al.
patent: 5111079 (1992-05-01), Steele
patent: 5138198 (1992-08-01), Shen et al.

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