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[Keyword] self-calibrated current bias(1hit)

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  • A Fully Integrated Current-Steering 10-b CMOS D/A Converter with On-Chip Terminated Resistors

    Sanghoon HWANG  Minkyu SONG  

     
    PAPER-Integrated Electronics

      Vol:
    E87-C No:12
      Page(s):
    2179-2185

    A fully integrated current-steering 10-b CMOS Digital-to-Analog Converter with on-chip terminated resistors is presented. In order to improve the device-mismatching problem of internal termination resistors, a self-calibrated current bias circuit is designed. With the self-calibrated current bias circuit, the gain error of the output voltage swing is reduced within 0.5%. For the purpose of reducing glitch noises, furthermore, a novel current switch based on a deglitching circuit is proposed. The prototype circuit has been fabricated with a 3 V 0.35 µm 2-poly 3-metal CMOS technology, and it occupies 1350 µm750 µm silicon area with 45 mW power consumption. The measured INL and DNL are within 0.5LSB, respectively. The measured SFDR is about 65 dB, when an input signal is about 8 MHz at 100 MHz clock frequency.