Calibration of continuous-time residue generation systems for analog-to-digital converters

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United States of America Patent

PATENT NO 11563442
APP PUB NO 20220045687A1
SERIAL NO

17389428

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Abstract

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Calibration of continuous-time (CT) residue generation systems can account and compensate for mismatches in magnitude and phase that may be caused by fabrication processes, temperature, and voltage variations. In particular, calibration may be performed by providing one or more known test signals as an input to a CT residue generation system, analyzing the output of the system corresponding to the known input, and then adjusting one or more parameters of a forward and/or a feedforward path of the system so that the difference in transfer functions of these paths may be reduced/minimized. Calibrating CT residue generation systems using test signals may help decrease the magnitude of the residue signals generated by such systems, and, consequently, advantageously increase an error correction range of such systems or of further stages that may use the residue signals as input.

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Patent Owner(s)

Patent OwnerAddress
ANALOG DEVICES INTERNATIONAL UNLIMITED COMPANYBAY F-1 RAHEEN INDUSTRIAL ESTATE CO LIMERICK

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kozlov, Victor Toronto, CA 10 51
Patil, Sharvil Pradeep Toronto, CA 12 31
Shibata, Hajime Toronto, CA 54 455

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