Error cancellation delta-sigma DAC with an inverting amplifier-based filter

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United States of America Patent

PATENT NO 12126363
APP PUB NO 20240039554A1
SERIAL NO

17876679

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Abstract

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An apparatus includes a delta-sigma modulator digital-to-analog converter section having a multiple stag cascaded error cancellation architecture, each stage including a delta-sigma modulator followed by a digital-to-analog converter, the delta-sigma modulator digital-to-analog converter section configured to receive a digital input and to generate an analog output. An inverting amplifier-based analog filter is coupled to receive the analog output, the inverting amplifier-based analog filter configured to filter the analog output to produce a filtered analog output.

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Patent Owner(s)

Patent OwnerAddress
CISCO TECHNOLOGY INC170 WEST TASMAN DRIVE SAN JOSE CA 95134

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Booth, Richard Van Hoesen Riegelsville, US 3 19
Das, Bibhu Prasad Philadelphia, US 3 1
Hanumolu, Pavan Kumar Champaign, US 6 13
Lakshmikumar, Kadaba Hillsborough, US 28 80
Nandwana, Romesh Kumar Chapel Hill, US 21 34

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