CPC H03M 1/0609 (2013.01) [H03M 1/0612 (2013.01)] | 20 Claims |
1. An integrated circuit, comprising:
a set of analog-to-digital converters (ADCs) configured to provide quantized outputs corresponding to an input signal; and
a calibration engine, coupled to the set of ADCs, configured to provide full-scale reference corrections and DC offsets to the set of ADCs, wherein the calibration engine is configured to:
compute an average of the quantized outputs; and
determine, for a given ADC in the set of ADCs, a given full-scale reference correction in the full-scale reference corrections and a given DC offset in the DC offsets by comparing the average of the quantized outputs and a reference; and
wherein the calibration engine comprises:
full-scale reference generation circuits configured to generate full-scale reference voltages of full scales of each ADC in the set of ADCs, wherein the full-scale reference voltages correspond to variable components and a fixed component; and wherein the variable components correspond to the full-scale corrections of the full scales of the set of ADCs; and
a full-scale reference generator replica circuit configured to provide the fixed component, wherein the full-scale reference generator replica circuit is open-loop.
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