Analog to digital conversion method and apparatus

Details Analog to digital conversion method and apparatus Analog to digital conversion method and apparatus

H - Electricity

03

M

354/70

H03M 1/18 (2006.01) H03M 1/00 (2006.01)

Patent

CA 1191614

ANALOG TO DIGITAL CONVERSION METHOD AND APPARATUS ABSTRACT OF THE DISCLOSURE An analog to digital conversion method and apparatus includes the use of a scaling circuit 15 to scale the magnitude of an analog signal D applied to ADC 4 to within an acceptable input range. A calibration circuit 16 generates a signal M indicative of the effect of the scaling circuit 15 upon a digital signal E produced by the ADC 4. An adder 14 adds the calibration signal M and the digital signal E of ADC 4 to yield a digital output signal N which is the digital representation of measured analog input signal A.

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