System and method for integration of hybrid pipeline

摘要

A system includes a pipeline analog-to-digital converter as a first stage to process an input signal, and a successive approximation register (SAR) analog-to-digital converter as a second stage to process the input signal. The SAR analog-to-digital converter includes a power adjustment element to adjust a reference voltage of the SAR analog-to-digital converter to match a full scale voltage of the pipeline-analog-to-digital converter.

主权项

1. A method, comprising:
responsive to a capacitance ratio, adjusting a successive approximation register (SAR) reference voltage of a SAR analog-to-digital converter to attempt to match a scale voltage of a pipeline analog-to-digital converter; processing a most-significant bit of an input signal with the pipeline analog-to-digital converter; and processing a least-significant bit of an input signal with the SAR analog-to-digital converter.