Flash ADC with variable LSB

Details Flash ADC with variable LSB Flash ADC with variable LSB

2006-06-13

2006-06-13

Nguyen, Linh V. (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

C341S159000

Reexamination Certificate

active

07061421

ABSTRACT:
A differential analog-to-digital data converter (ADC) is disclosed for receiving a positive input signal and a negative input signal. A distributed resistive device is provided having taps associated therewith. A plurality of comparators each having a signal input and a reference input are provided, the signal input connected to one of the positive and negative input signals and the reference input connected to a tap on said distributed resistive device. A driver drives current through the distributed resistive device with one of the taps of the distributed resistive device disposed at substantially the other of the positive and negative input signals. A current varying device varys the current through the distributed resistive device to vary the voltage between taps.

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