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

Claim 8:
9. The ADC of claim 8, wherein the calibration circuitry includes a fourth calibration circuitry input and offset error estimation circuitry having a first offset error estimation circuitry input, a second offset error estimation circuitry input; a third offset error estimation circuitry input, a fourth offset error estimation circuitry input and an offset error estimation circuitry output, the first offset error estimation circuitry input coupled to the first threshold proximity detect circuitry output, the second offset error estimation circuitry input coupled to the second threshold proximity detect circuitry output, the second offset error estimation circuitry input coupled to the second calibration circuitry input, the fourth offset error estimation circuitry input coupled to the fourth calibration circuitry input, and the offset error estimation circuitry configured to:
receive the enable signal at the first offset error estimation circuitry input;
receive the proximity results at the second offset error estimation circuitry input;
receive the ADC values at the third offset error estimation circuitry input;
receive PRBS values at the fourth offset error estimation circuitry input;
estimate the offset error based on the enable signal, the proximity results, the ADC values and the PRBS values; and
provide offset error results at the offset error estimation circuitry output.