• Publications
  • Influence
Comparator-Based Switched-Capacitor Circuits for Scaled CMOS Technologies
A comparator-based switched-capacitor circuit (CBSC) technique is presented for the design of analog and mixed-signal circuits in scaled CMOS technologies. The technique involves replacing theExpand
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A modeling approach for /spl Sigma/-/spl Delta/ fractional-N frequency synthesizers allowing straightforward noise analysis
A general model of phase-locked loops (PLLs) is derived which incorporates the influence of divide value variations. The proposed model allows straightforward noise and dynamic analyses of /splExpand
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Frequency-aware rate adaptation and MAC protocols
There has been burgeoning interest in wireless technologies that can use wider frequency spectrum. Technology advances, such as 802.11n and ultra-wideband (UWB), are pushing toward wider frequencyExpand
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A 1/f noise technique to extract the oxide trap density near the conduction band edge of silicon
The use of 1/f noise measurements in n-channel MOSFETs to extract the oxide trap density in space and energy near and above the conduction band edge of silicon is investigated. The conventionalExpand
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A 27-mW CMOS fractional-N synthesizer using digital compensation for 2.5-Mb/s GFSK modulation
A digital compensation method and key circuits are presented that allow fractional-N synthesizers to be modulated at data rates greatly exceeding their bandwidth. Using this technique, a 1.8-GHzExpand
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A higher order topology for interpolative modulators for oversampling A/D converters
Oversampling interpolative coding has been demonstrated to be an effective technique for high-resolution analog-to-digital (A/D) conversion that is tolerant of process imperfections. A novel topologyExpand
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Energy efficient Modulation and MAC for Asymmetric RF Microsensor Systems
Wireless microsensor systems are used in a variety of civil and military applications. Such microsensors are required to operate for years from a small energy source. To minimize the energyExpand
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The impact of device type and sizing on phase noise mechanisms
Phase noise mechanisms in integrated LC voltage-controlled oscillators (VCOs) using MOS transistors are investigated. The degradation in phase noise due to low-frequency bias noise is shown to be aExpand
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Analog-to-Digital Converters: Digitizing the Analog World
  • H. Lee, C. Sodini
  • Engineering, Computer Science
  • Proceedings of the IEEE
  • 16 January 2008
Challenges in analog-to-digital (A/D) conversion for future scaled complementary metal-oxide-semiconductor (CMOS) technologies are investigated. The analysis of a figure of merit (FOM) that accountsExpand
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Learning to share: narrowband-friendly wideband networks
Wideband technologies in the unlicensed spectrum can satisfy the ever-increasing demands for wireless bandwidth created by emerging rich media applications. The key challenge for such systems,Expand
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