Study on calibration technique of large scale mixed-signal integrated circuits

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A monitoring circuit which can detect frequency and transient response of analog circuit blocks in large scale mixed-signal integrated circuits has been developed. A sampling circuit with both positive and negative bootstrapped clock generator has been proposed. Fabricated test chips successfully demonstrated the wide frequency and dynamic range operation. An area efficient phase interpolator has been proposed and designed for the monitoring of phase characteristics of the analog circuit blocks. The size of the developed monitoring circuit is smaller than 0.1mm-square and can be embedded in the LSI for the monitoring and calibration of analog circuit blocks.