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A Continuous-Time Waveform Monitoring Technique for On-Chip Power Noise Measurements in VLSI Circuits
IEICE TRANSACTIONS on Electronics
Publication Date: 2011/04/01
Online ISSN: 1745-1353
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Circuits and Design Techniques for Advanced Large Scale Integration)
on-chip monitor, power supply noise,
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A continuous-time waveform monitoring technique for quality on-chip power noise measurements features matched probing performance among a variety of voltage domains of interest in a VLSI circuit, covering digital Vdd, analog Vdd, as well as at Vss, and multiple probing capability at various locations on power planes. A calibration flow eliminates the offset as well as gain errors among probing channels. The consistency of waveforms acquired by the proposed continuous-time monitoring and sampled-time precise digitization techniques is ensured. A 90-nm CMOS on-chip monitor prototype demonstrates dynamic power supply noise measurements with 200 mV at 2.5 V, 1.0 V, and 0.0 V, respectively, with less than 4 mV deviation among 240 probing channels.