Inventors:
Dennis J. Buckland - Bethpage NY
Assignee:
Grumman Aerospace Corporation - Bethpage NY
International Classification:
H03M 136
Abstract:
To provide for a higher speed operation, lower cost and less complexity in terms of manufacturing, the present invention analog-to-digital converter has feedforwards, from the more significant comparators, to the less significant comparators. As the respective outputs of the comparators change state, the voltage representing that state, for that comparator, is fed to succeeding less significant comparators. With the exception of the most significant comparator whose reference bias voltage remains static, the respective bias voltages of the rest of the successive less significant comparators are shifted, either higher or lower, as the output states of their predecessor comparator(s) change. Consequently, the respective outputs of the comparators correspond, in a binary progressive manner, to a digital word that is representative of the voltage of an input analog signal.