Invention Grant
- Patent Title: Method for increasing active inductor operating range and peaking gain
-
Application No.: US14933346Application Date: 2015-11-05
-
Publication No.: US09774315B2Publication Date: 2017-09-26
- Inventor: Jinyung Namkoong , Wenfeng Zhang , Parag Upadhyaya
- Applicant: Xilinx, Inc.
- Applicant Address: US CA San Jose
- Assignee: XILINX, INC.
- Current Assignee: XILINX, INC.
- Current Assignee Address: US CA San Jose
- Agent Steven Roberts
- Main IPC: H03K17/16
- IPC: H03K17/16 ; H03K3/01

Abstract:
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.
Public/Granted literature
- US20170134009A1 METHOD FOR INCREASING ACTIVE INDUCTOR OPERATING RANGE AND PEAKING GAIN Public/Granted day:2017-05-11
Information query