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A 10bit 35MS/s Pipeline ADC with Low Power Consumption Applied in Medical Image Sensor
Abstract:
In this paper, a Pipeline ADC applied in medical image sensor was designed, and the analog / digital operating voltage was 3.3/1.2V respectively, the area was 0.326mm2. Because the gain bootstrap op-amp structure has been improved and the dynamic comparator was used, which reduced the overall power consumption of the ADC. The simulation results showed that in the normal working mode, the total current of ADC was about 6.5 mA; when the sampling rate was lower than 17.5 MHz, the working mode was switched to the LP (low power) mode, and the total current was 4.5 mA. In addition, the tapeout test results showed that the other performance parameters of ADC were good, the sampling rate was 35 M/s, and SNR was 58dB.
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193-198
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May 2014
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© 2014 Trans Tech Publications Ltd. All Rights Reserved
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