Method and Apparatus for Non-Uniform Analog-to-Digital Conversion

摘要

A method and apparatus for converting an analog input into a final digital output. A first digital output is generated in response to receiving an analog input at a first converter. A second digital output is generated in response to receiving the analog input at a second converter. The first digital output is output to form the final digital output when an amplitude of the analog input is within a first portion of an overall range of amplitudes for the analog input and the second digital output is output to form the final digital output when the amplitude is within a second portion of the overall range of amplitudes.

主权项

1. An apparatus comprising:
a first converter that produces a first digital output in response to receiving an analog input; a second converter that produces a second digital output in response to receiving the analog input; and a comparator that performs a comparison of a first output value in the first digital output generated by the first converter to a reference output value; wherein the first digital output is output to form a final digital output when an amplitude of the analog input is within a first portion of an overall range of amplitudes for the analog input and wherein the second digital output is output to form the final digital output when the amplitude is within a second portion of the overall range of amplitudes based on the comparison.