Auto-polarity dual ramp analog to digital converter

Details Auto-polarity dual ramp analog to digital converter Auto-polarity dual ramp analog to digital converter

1975-06-30

1978-02-14

Miller, Charles D.

Communications: electrical

Audible indication

Percussion-type sound producer

340347AD, H03K 1320

Patent

active

040742571

ABSTRACT:
A dual ramp analog to digital converter which employs a single supply voltage and internal logic circuitry for automatically generating automatic zero and full scale calibration voltages and a virtual second supply voltage of opposite polarity to the single supply voltage for automatically accommodating unknown opposite polarity input voltages to be measured.

REFERENCES:
patent: 3667055 (1972-05-01), Uchida
patent: 3747089 (1973-07-01), Sharples
patent: 3750146 (1973-07-01), Lucas
patent: 3872466 (1975-03-01), Wold
patent: 3906486 (1975-09-01), Phillips
patent: 3930252 (1975-12-01), Storar

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