Voltage-to-time-to-digital converter (VTDC) with coarse analog-to-digital converter (ADC)

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United States of America Patent

PATENT NO 11012083
SERIAL NO

17169598

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Abstract

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A voltage-to-time-to-digital converter (VTDC) and conversion method are provided using a coarse analog-to-digital converter (ADC). A voltage-to-time converter (VTC) receives an analog input voltage-differential signal with a first time duration and supplies an analog first time-differential signal. An ADC receives the input voltage-differential signal and supplies a first digital code representing m bit values. A time-to-digital converter (TDC) receives a second time-differential signal with a second time duration derived from the first time duration. The TDC supplies an output digital code representing p bit values, where p>m. In one aspect the first digital code programs an initial set of TDC residue generators. In another aspect, a dither circuit controls the second time duration in response to a pseudo random signal combined with the first digital code.

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Patent Owner(s)

  • IQ-ANALOG CORP.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Waltari, Mikko Escondido, US 25 186

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