公开(公告)号：US12074607B2

公开(公告)日：2024-08-27

申请号：US17825864

申请日：2022-05-26

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Narasimhan Rajagopal ,  Nithin Gopinath ,  Viswanathan Nagarajan ,  Neeraj Shrivastava ,  Visvesvaraya A. Pentakota ,  Harshit Moondra ,  Abhinav Chandra

IPC: H03M1/10

CPC classification number: H03M1/1014

Abstract: A circuit includes a nonlinear analog-to-digital converter (ADC) configured to provide a first digital output based on an analog input signal. The circuit also includes a linearization circuit having a lookup table (LUT) memory configured to store initial calibration data. The linearization circuit is coupled to the nonlinear ADC and 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 at a linearization circuit output of the linearization circuit based on the first digital output and the updated calibration data.