Bae Systems Information and Electronic Systems Integration Inc.

Forrest C Vatter

Dale A Rickard

Robert T Carlson

David A Haessig, Jr

Martin F Ryba

Steven G Santee

Amod V Dandawate

David C Donarski

An apparatus having an analog-to-digital converter with an increased effective resolution is disclosed. The apparatus includes a signal processing functional block and an analog-to-digital conversion block. The signal processing functional block includes a controller for providing a set of digital control signals according to a set of digital input signals received by the controller, a digital-to-analog converter for converting the digital control signals to a set of corresponding analog control signals, and a physical hardware unit for performing a specific function according to the analog control signals. The analog-to-digital conversion block includes an adder for adding a dither signal to an analog feedback signal originated from the physical hardware unit, an ADC for converting sums of dither signals and analog feedback signals to a set of oversampled digital control signals to be fed into the controller.

Method and apparatus for improving resolutions of analog-to-digital converters

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Bedford, MA, United States of America

Forrest C Vatter