Patent ID: 11955984
Assignee: TEXAS INSTRUMENTS INCORPORATED
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 15:
16. The circuit of claim 13, wherein the ADC is a first ADC, the calibration circuit includes a second ADC in parallel with the first ADC, the second ADC includes the second set of comparators, and the offset error is estimated as: offset error=E(y1−y0, prbs=1)−E(y1−y0,prbs=−1), where E(y1−y0, prbs=1) is the expectation or mean in the digital output code of the first ADC minus a digital output code of the second ADC for the analog signal when the PRBS value=1, and E(y1−y0,prbs=−1) is the expectation or mean in the digital output code of the first ADC minus the digital output code of the second ADC for the analog signal when the PRBS value=−1.