Method and system for improving analog-to-digital conversion performance

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12132492
APP PUB NO 20240204789A1
SERIAL NO

18081490

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Abstract

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A frontend circuit of a time-interleaved ADC is provided. The frontend circuit can include a track-and-hold circuit to sample an analog input signal to the ADC, a sub-ADC circuit to convert the sampled analog input signal to a digital output signal, and a source-follower circuit. An input of the source-follower circuit can be coupled to an output of the track-and-hold circuit, and an output of the source-follower circuit can be coupled to an input of the sub-ADC circuit. The source-follower circuit is to provide buffering between the track-and-hold circuit and the sub-ADC circuit. The circuit further includes a common-mode-adjusting circuit to dynamically adjust common-mode settings of the time-interleaved ADC. While adjusting the common-mode settings, the common-mode-adjusting circuit can adjust, separately, an input common-mode voltage of the track-and-hold circuit and an input common-mode voltage of the sub-ADC circuit based on current Process, Voltage, and Temperature (PVT) conditions.

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Patent Owner(s)

Patent OwnerAddress
HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP11445 COMPAQ CENTER DRIVE WEST HOUSTON TX 77070

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Barnhill, Ryan Fort Collins, US 6 2
Kurahashi, Peter Tsugio Fort Collins, US 3 6
Marshall, Michael James Fort Collins, US 3 1
Zhou, Dacheng Fort Collins, US 34 146

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