Analog to digital converter (ADC) with comparator function for analog signals

摘要

This disclosure relates to analog to digital converter (ADC) component with a comparator function for analog signals.

主权项

1. An analog to digital converter comprising:
an analog input port to receive an analog input value; a output port to provide a digital output value; a reference voltage input port to receive a reference voltage for the analog input value; a comparator with a first and second input; a plurality of capacitors, each of the plurality of capacitors being coupled to the first input of the comparator; wherein each of the plurality of capacitors is switchable to the analog input port to receive an analog voltage level from the analog input port, wherein the analog to digital converter operates in a conversion mode to convert a first sampled analog voltage level to a digital output value, and in a compare mode compares a second sampled analog voltage level against a digital compare result derived from the digital output value, the digital compare result being a digital value from another analog to digital converter.