US Patent Application 17825864. ANALOG-TO-DIGITAL CONVERTER (ADC) HAVING LINEARIZATION CIRCUIT WITH RECONFIGURABLE LOOKUP TABLE (LUT) MEMORY AND CALIBRATION OPTIONS simplified abstract

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ANALOG-TO-DIGITAL CONVERTER (ADC) HAVING LINEARIZATION CIRCUIT WITH RECONFIGURABLE LOOKUP TABLE (LUT) MEMORY AND CALIBRATION OPTIONS

Organization Name

TEXAS INSTRUMENTS INCORPORATED

Inventor(s)

Narasimhan Rajagopal of Chennai (IN)

Nithin Gopinath of Bengaluru (IN)

Viswanathan Nagarajan of Bengaluru (IN)

Neeraj Shrivastava of Bengaluru (IN)

Visvesvaraya A. Pentakota of Bengaluru (IN)

Harshit Moondra of Mumbai (IN)

Abhinav Chandra of Bengaluru (IN)

ANALOG-TO-DIGITAL CONVERTER (ADC) HAVING LINEARIZATION CIRCUIT WITH RECONFIGURABLE LOOKUP TABLE (LUT) MEMORY AND CALIBRATION OPTIONS - A simplified explanation of the abstract

This abstract first appeared for US patent application 17825864 titled 'ANALOG-TO-DIGITAL CONVERTER (ADC) HAVING LINEARIZATION CIRCUIT WITH RECONFIGURABLE LOOKUP TABLE (LUT) MEMORY AND CALIBRATION OPTIONS

Simplified Explanation

The patent application describes a circuit that includes an analog-to-digital converter (ADC) and a linearization circuit.

  • The ADC converts an analog input signal into a first digital output.
  • The linearization circuit has a lookup table (LUT) memory that stores initial calibration data.
  • The linearization circuit is connected to the ADC and performs the following functions:
 - Determines updated calibration data based on the initial calibration data.
 - Replaces the initial calibration data in the LUT memory with the updated calibration data.
 - Provides a second digital output at the linearization circuit output based on the first digital output and the updated calibration data.


Original Abstract Submitted

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.

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