公开(公告)号：US20240322834A1

公开(公告)日：2024-09-26

申请号：US18454435

申请日：2023-08-23

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： John P. LESSO ,  Ivan PERRY ,  Salvatore CAPORALE ,  Gagan MIDHA ,  James WELLS

IPC: H03M1/10 ,  H01M6/02 ,  H01M6/50

CPC classification number: H03M1/1009 ,  H01M6/02 ,  H01M6/5044 ,  H03M1/1071

Abstract: Circuitry for processing an analyte signal obtained from an electrochemical cell, the circuitry comprising: measurement circuitry having a first measurement input coupled to a first electrode of the electrochemical cell, the measurement circuitry configured to convert the analyte signal at the first measurement input to a first analog output signal; an analog-to-digital converter (ADC) having an first ADC input for receiving the first analog output signal, the ADC configured to convert the first analog output signal to a first digital output signal at an ADC output; compensation circuitry configured in a measurement mode to: apply a first compensation to the first digital output signal to obtain a first compensated digital output signal, the first compensation to compensate for non-linearity in the ADC; and apply a second compensation to the first compensated digital output signal to obtain a second compensated digital output signal, the second compensation to compensate for non-linearity in the measurement circuitry; control circuitry configured in a calibration mode to: apply a first calibration signal at the first ADC input and adapt the first compensation based on the first calibration signal and the first compensated digital output signal; and apply a second calibration signal at the first electrode and adapt the second compensation based on the second calibration signal and the second compensated digital output signal.

公开(公告)号：US20240302322A1

公开(公告)日：2024-09-12

申请号：US18594434

申请日：2024-03-04

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： James WELLS ,  Gagan MIDHA ,  Gordon J. BATES ,  Sunil SAUNDERS

IPC: G01N27/416

CPC classification number: G01N27/4163

Abstract: Circuitry for processing a response from an electrochemical cell to a stimulus, the circuitry comprising: sense circuitry configured to measure the response of the electrochemical cell to the stimulus; and processing circuitry configured to: sample the measured response to obtain a plurality of samples; and output the plurality of samples, wherein the processing circuitry is operable in: a continuous sampling mode in which the processing circuitry is configured to periodically sample the measured response at a fixed sampling rate; a discontinuous sampling mode in which the processing circuitry is configured to periodically sample the measured response during macro periods separated by macro intervals during which sampling of the measured response is disabled.