US 12,250,015 B2
Front-end for receivers with RF sampling ADCS
Athanasios Ramkaj, Leuven (BE); Gabriele Manganaro, Winchester, MA (US); Filip Tavernier, Oud-Heverlee (BE); and Siddharth Devarajan, Arlington, MA (US)
Assigned to Analog Devices International Unlimited Company, Limerick (IE)
Filed by Analog Devices International Unlimited Company, Limerick (IE)
Filed on Sep. 6, 2022, as Appl. No. 17/903,970.
Claims priority of provisional application 63/241,456, filed on Sep. 7, 2021.
Prior Publication US 2023/0069891 A1, Mar. 9, 2023
Int. Cl. H04B 1/18 (2006.01); H04B 1/16 (2006.01)
CPC H04B 1/18 (2013.01) [H04B 1/1607 (2013.01); H04B 1/1638 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A front-end at an input of a radio-frequency analog-to-digital converter of a receiver, the front-end comprising:
a multi-tap filter comprising inductor-capacitor circuits;
attenuator cells distributed across taps of the multi-tap filter;
electrostatic discharge protection circuitry integrated with the multi-tap filter, wherein the electrostatic discharge protection circuitry comprises a first segment upstream of a first inductor of the multi-tap filter, and a second segment downstream of the first inductor; and
a gain stage at an output of the multi-tap filter.