Patent ID: 11901910
Assignee: TEXAS INSTRUMENTS INCORPORATED
Field: Basic communication processes (Electrical engineering)
Classification: CPC H  G | IPC H

Claim 8:
9. A circuit device comprising:
a voltage input configured to receive an input voltage;
a digital-to-analog converter configured to provide a reference voltage;
a register coupled to the digital-to-analog converter;
a first switch coupled to the voltage input and the digital-to-analog converter;
a sampling capacitor coupled to the first switch; and
a comparator that includes:
a transconductor that includes:
an input coupled to the sampling capacitor; and
an output;

a second switch coupled to the output of the transconductor;
a first capacitor coupled to the second switch and to a ground node;
a second capacitor coupled to the output of the transconductor; and
a level detector that includes:
an input coupled to the second capacitor; and
an output coupled to the register,

wherein the first switch is configured to couple the input voltage to the sampling capacitor and the second switch is configured to couple the output of the transconductor to the first capacitor concurrently.