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A Band-Limited Active Damping Circuit With 13 dB Power Supply Resonance Reduction

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11 Author(s)

The impedance of a microprocessor power-delivery network peaks at ~140 MHz, resulting in power-grid resonance, which lowers operating frequency and compromises gate oxide integrity. A suppression circuit is designed using an active-damping technique with a maximum of 13 dB supply voltage noise reduction from 70 to 250 MHz in a 90 nm CMOS process.

Published in:

Solid-State Circuits, IEEE Journal of  (Volume:43 ,  Issue: 1 )