Title :
Distributed Active Decoupling Capacitors for On-Chip Supply Noise Cancellation in Digital VLSI Circuits
Author :
Gu, Jie ; Harjani, Ramesh ; Kim, Chris
Author_Institution :
Dept. of Electr. & Comput. Eng., Minnesota Univ., Minneapolis, MN
Abstract :
A distributed active decoupling capacitor (decap) circuit is proposed to suppress the on-chip power supply noise in digital VLSI circuits. Effectiveness on suppressing local supply noise is verified from a 0.18mum test chip using multiple on-chip supply noise generators and supply noise sensors. Measurements show 4-11times boost in decap value over conventional passive decaps for frequencies up to 1 Hz. Decap area reduction of 40% is achieved
Keywords :
VLSI; capacitors; digital integrated circuits; integrated circuit noise; interference suppression; system-on-chip; 0.18 micron; digital VLSI circuits; distributed active decoupling capacitors; on-chip supply noise cancellation; supply noise generators; supply noise sensors; Active noise reduction; Area measurement; Capacitors; Circuit noise; Circuit testing; Frequency measurement; Noise cancellation; Noise generators; Power supplies; Very large scale integration;
Conference_Titel :
VLSI Circuits, 2006. Digest of Technical Papers. 2006 Symposium on
Conference_Location :
Honolulu, HI
Print_ISBN :
1-4244-0006-6
DOI :
10.1109/VLSIC.2006.1705387
