Patent ID: 11863196
Assignee: INFINEON TECHNOLOGIES AG
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 17:
18. An analog-to-digital converter (ADC) comprising:
a loop filter having an input for receiving an analog input signal;
a quantizer having an input coupled to an output of the loop filter, and an output for providing a digital output signal; and
a digital-to-analog converter (DAC) having an input coupled to an output of the quantizer, and an output coupled to the loop filter, wherein the DAC comprises at least one always-on DAC element, and a plurality of on-demand DAC elements, the at least one always-on DAC element and each of the plurality of on-demand DAC elements including:
a buffer configured for receiving a reference voltage;
a capacitor; and
a switch matrix coupled between the capacitor and the buffer.