Clocked Nanometer CMOS Comparators

  • Bernhard Goll
  • Horst Zimmermann


A circuit block, which is mostly used in the link between the analog and the digital domain, e.g. in an analog-digital converter (ADC), is the clocked, regenerative comparator. This type of comparator is implemented mostly in ADCs with a fast conversion rate, e.g. in flash-ADCs [1–4] because of its capability of a fast decision. A comparator is a circuit, which typically compares two analog input voltages (VA p , VA n ), currents or charges and delivers a logical level at the output, which indicates, what of the compared values was higher (see Fig. 8.1).


Supply Voltage Output Node Static Random Access Memory Test Chip Reset Phase 
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Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  1. 1.EMCEVienna University of TechnologyViennaAustria

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