Patent ID: 9660662
Date: 2017-05-23
CPC Classifications: H03M

Claim:
1. An analog-to-digital converter comprising: a first analog-to-digital converter configured to receive an analog input signal and convert the analog input signal to a first digital signal, the first analog-to-digital converter comprising a successive approximation module, wherein the successive approximation module is configured to perform a successive approximation to generate the first digital signal; a second analog-to-digital converter configured to convert an analog output of the first-analog-to-digital converter to a second digital signal, wherein the analog output of the first analog-to-digital converter is generated based on the analog input signal, wherein the second analog-to-digital converter is a fine conversion analog-to-digital converter relative to the first analog-to-digital converter, wherein the second analog-to-digital converter performs the delta-sigma conversion process and comprises a decimation filter, and wherein the decimation filter is configured to a combination module configured to combine the first digital signal and the second digital signal to provide a resultant output signal.