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An 8-b 300MS/s folding and interpolating ADC for embedded applications

Lu Yan, Lin Li, Xia Jiefeng, Ye Fan and Ren Junyan

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Abstract: A 1.4-V 8-bit 300-MS/s folding and interpolating analog-to-digital converter (ADC) is proposed. Fabricated in the 0.13-μm CMOS process and occupying only 0.6-mm2 active area, the ADC is especially suitable for embedded applications. The system is optimized for a low-power purpose. Pipelining sampling switches help to cut down the extra power needed for complete settling. An averaging resistor array is placed between two folding stages for power-saving considerations. The converter achieves 43.4-dB signal-to-noise and distortion ratio and 53.3-dB spurious-free dynamic range at 1-MHz input and 42.1-dB and 49.5-dB for Nyquist input. Measured results show a power dissipation of 34 mW and a figure of merit of 1.14 pJ/convstep at 250-MHz sampling rate at 1.4-V supply.

Key words: analog-to-digital convertor

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    Received: 18 August 2015 Revised: 28 January 2010 Online: Published: 01 June 2010

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      Lu Yan, Lin Li, Xia Jiefeng, Ye Fan, Ren Junyan. An 8-b 300MS/s folding and interpolating ADC for embedded applications[J]. Journal of Semiconductors, 2010, 31(6): 065015. doi: 10.1088/1674-4926/31/6/065015 Lu Y, Lin L, Xia J F, Ye F, Ren J Y. An 8-b 300MS/s folding and interpolating ADC for embedded applications[J]. J. Semicond., 2010, 31(6): 065015. doi: 10.1088/1674-4926/31/6/065015.Export: BibTex EndNote
      Citation:
      Lu Yan, Lin Li, Xia Jiefeng, Ye Fan, Ren Junyan. An 8-b 300MS/s folding and interpolating ADC for embedded applications[J]. Journal of Semiconductors, 2010, 31(6): 065015. doi: 10.1088/1674-4926/31/6/065015

      Lu Y, Lin L, Xia J F, Ye F, Ren J Y. An 8-b 300MS/s folding and interpolating ADC for embedded applications[J]. J. Semicond., 2010, 31(6): 065015. doi: 10.1088/1674-4926/31/6/065015.
      Export: BibTex EndNote

      An 8-b 300MS/s folding and interpolating ADC for embedded applications

      doi: 10.1088/1674-4926/31/6/065015
      • Received Date: 2015-08-18
      • Accepted Date: 2010-01-04
      • Revised Date: 2010-01-28
      • Published Date: 2010-06-03

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