High resolution analogue-to-digital converter

Details High resolution analogue-to-digital converter High resolution analogue-to-digital converter

1991-12-23

1992-09-15

Williams, Howard L.

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

307271, H03M 160

Patent

active

051481707

ABSTRACT:
A monolithic integrated high resolution analog-to-digital converter based on a charge balancing process, characterized in that the output of a charge balancing integrator is connected to the control input of a pulse width modulator. An output of the pulse width modulator controls the temporal activity of the feedback signal in the charge balancing integrator. The output of the pulsewidth modulator is also connected to a digital calculation circuit which evaluates the pulse width result of the conversion. The input of the analog-to-digital converter is connected to one input of the charge balancing integrator and the feedback signal from the pulse width modulator is connected to the other input.

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Redfern, Thomas P., Pulse Modulation A/D Converter, Microprocessor Controller Developments, Feb. 27-Mar. 34, 1978.

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