公开(公告)号：US20240372557A1

公开(公告)日：2024-11-07

申请号：US18772635

申请日：2024-07-15

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Narasimhan RAJAGOPAL ,  Nithin GOPINATH ,  Viswanathan NAGARAJAN ,  Neeraj SHRIVASTAVA ,  Visvesvaraya A. PENTAKOTA ,  Harshit MOONDRA ,  Abhinav CHANDRA

IPC: H03M1/10

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.

公开(公告)号：US20230387932A1

公开(公告)日：2023-11-30

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.