IEEE Transactions on Very Large Scale Integration (VLSI) Systems · 2013 · 69 citations · 21 references
EngineeringComputer EngineeringElectrical EngineeringAnalog ElectronicsLow-power DesignSystem-on-chip DesignAnalog Integrated CircuitsCmos Circuit DesignDigital Integrated CircuitsDigital Signal ProcessingMixed-signal Integrated Circuit DesignMixed-signal IntegrationAnalog-digital ConversionAnalog-to-digital ConversionAnalog-to-digital ConvertersCmos Analog Integrated CircuitsLinearityLinearity EnhancementNonlinearityParasitic Effects
This paper presents the linearity analysis of a successive approximation registers (SAR) analog-to-digital converters (ADC) with split DAC structure based on two switching methods: conventional charge-redistribution and Vcm-based switching. The static linearity performance, namely the integral nonlinearity and differential nonlinearity, as well as the parasitic effects of the split DAC, are analyzed hereunder. In addition, a code-randomized calibration technique is proposed to correct the conversion nonlinearity in the conventional SAR ADC, which is verified by behavioral simulations, as well as measured results. Performances of both switching methods are demonstrated in 90 nm CMOS. Measurement results of power, speed, and linearity clearly show the benefits of using Vcm-based switching.
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A 10-bit 100-MS/s Reference-Free SAR ADC in 90 nm CMOS
Yan Zhu, Chi‐Hang Chan, U-Fat Chio et al. · IEEE Journal of Solid-State Circuits · 2010 · 713 citations
Engineering, Computer Engineering, Electrical Engineering +17
Mehdi Saberi, Reza Lotfi, Khalil Mafinezhad et al. · IEEE Transactions on Circuits and Systems I Regular Papers · 2011 · 236 citations
Engineering, Computer Engineering, Electrical Engineering +16