Design techniques for low power ADCs Public Deposited

http://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/2v23vw98g

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  • This dissertation presents an incremental analog-to-digital converter (ADC) with digital digital-to-analog converter (DAC) mismatch correction. A theoretical time-domain analysis technique was developed to predict the noise performance of the incremental ADC, and a new optimization technique was proposed to minimize the output noise. In the calibration mode, the incremental ADC itself is used to measure the mismatches of the internal multi-bit DAC. Three new calibration techniques, equation-solving calibration, inter-DAC mismatch calibration and modified “Sarhang-Nejad” calibration are proposed. To verify the above techniques, a test chip was designed and fabricated in 0.18 µm CMOS process. The chip can work in single-sampling or double-sampling mode. Chopping with a fractal sequence is used to eliminate 1/f noise. The calibration circuit was implemented to calibrate the multi-bit DAC mismatches the in single-sampling mode and inter-DAC mismatches in the double-sampling mode. Finally, two new design techniques for low-power ADCs, the two-step split-junction successive-approximation register (SAR) ADC and the hybrid cascaded ∆Σ ADC, are proposed.
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  • description.provenance : Submitted by Wenhuan Yu (yuw@onid.orst.edu) on 2010-02-08T23:45:06Z No. of bitstreams: 1 YuWenhuan2010.pdf: 3164179 bytes, checksum: 16124dfac8d3ba7360602ff12383c842 (MD5)
  • description.provenance : Approved for entry into archive by Julie Kurtz(julie.kurtz@oregonstate.edu) on 2010-02-10T16:16:32Z (GMT) No. of bitstreams: 1 YuWenhuan2010.pdf: 3164179 bytes, checksum: 16124dfac8d3ba7360602ff12383c842 (MD5)
  • description.provenance : Approved for entry into archive by Linda Kathman(linda.kathman@oregonstate.edu) on 2010-02-10T20:45:34Z (GMT) No. of bitstreams: 1 YuWenhuan2010.pdf: 3164179 bytes, checksum: 16124dfac8d3ba7360602ff12383c842 (MD5)
  • description.provenance : Made available in DSpace on 2010-02-10T20:45:34Z (GMT). No. of bitstreams: 1 YuWenhuan2010.pdf: 3164179 bytes, checksum: 16124dfac8d3ba7360602ff12383c842 (MD5)

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