Method for increasing active inductor operating range and peaking gain

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United States of America Patent

PATENT NO 9774315
SERIAL NO

14933346

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Abstract

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Methods and apparatus are described for a differential active inductor load for inductive peaking in which cross-coupled capacitive elements are used to cancel out, or at least reduce, the limiting effect of the gate-to-drain capacitance (Cgd) of transistors in the active inductor load. The cross-coupled capacitive elements extend the range over which the active inductor load behaves inductively and increase the quality factor (Q) of each active inductor. Therefore, the achievable inductive peaking of the load is significantly increased, which leads to providing larger signal swing across the load for a given power or, alternatively, lower power for a given signal swing.

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Patent Owner(s)

Patent OwnerAddress
XILINX INC2100 LOGIC DRIVE SAN JOSE CA 95124

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Namkoong, Jinyung San Jose, CA 9 64
Upadhyaya, Parag Los Gatos, US 62 381
Zhang, Wenfeng San Jose, US 120 1779

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