CPC H03M 1/1014 (2013.01) | 21 Claims |
1. A circuit comprising:
a nonlinear analog-to-digital converter (ADC) having a nonlinear ADC input and a nonlinear ADC output, the nonlinear ADC is configured to:
receive an analog input signal at the nonlinear ADC input; and
provide a first digital output signal at the nonlinear ADC output based on the analog input signal;
a linearization circuit having a linearization circuit input, a linearization circuit output and a lookup table (LUT) memory configured to store initial calibration data, the linearization circuit input is coupled to the nonlinear ADC output and the linearization circuit is configured to:
determine updated calibration data based on the initial calibration data;
replace the initial calibration data in the LUT memory with the updated calibration data; and
provide a second digital output signal at the linearization circuit output based on the first digital output signal and the updated calibration data; and
a calibration control circuit coupled to the linearization circuit, and the calibration control circuit is configured to:
access the initial calibration data stored in the LUT memory; and
average the initial calibration data to determine the updated calibration data.
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