Front-end for receivers with RF sampling ADCS

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12250015
APP PUB NO 20230069891A1
SERIAL NO

17903970

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Abstract

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Front-end circuitry is difficult to design for high sample rate, wide bandwidth receivers with high performance requirements on noise and linearity. One exemplary front-end circuitry is integrated on-chip with the RF ADC in a receiver, and the circuitry implements ESD protection, attenuation, and gain. The circuitry includes a multi-tap filter with LC circuits, and the filter implements a highly linear filter. Advantageously, the capacitors in the LC circuits are also used for ESD protection. Additionally, tunable attenuator cells are implemented across the multi-tap filter to provide a wide range of variable attenuation. The circuitry can further include a fixed or variable gain stage at the output. The resulting circuitry offers variable gain and attenuation while meeting bandwidth, noise, and linearity requirements.

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Patent Owner(s)

  • ANALOG DEVICES INTERNATIONAL UNLIMITED COMPANY

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Devarajan, Siddharth Arlington, US 10 147
Manganaro, Gabriele Winchester, US 26 187
Ramkaj, Athanasios Leuven, BE 3 12
Tavernier, Filip Oud-Heverlee, BE 3 2

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