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Browsing MIT Open Access Articles by Title

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  • Park, Sunghyun; Qazi, Masood; Peh, Li-Shiuan; Chandrakasan, Anantha P. (Institute of Electrical and Electronics Engineers (IEEE), 2013-03)
    Mesh NoCs are the most widely-used fabric in high-performance many-core chips today. They are, however, becoming increasingly power-constrained with the higher on-chip bandwidth requirements of high-performance SoCs. In ...
  • Paidimarri, Arun; Mercier, Patrick P.; Chandrakasan, Anantha P.; Nadeau, Phillip (Institute of Electrical and Electronics Engineers (IEEE), 2012-06)
    A 2.4GHz TX in 65nm CMOS defines three channels using three high-Q FBARs and supports OOK, BPSK and MSK. The oscillators have -132dBc/Hz phase noise at 1MHz offset, and are multiplexed to an efficient resonant buffer. ...
  • Zellem, Robert T.; Knutson, Heather A.; Griffith, Caitlin A.; Showman, Adam P.; Fortney, Jonathan J.; Cowan, Nicolas B.; Agol, Eric; Burrows, Adam; Charbonneau, David; Deming, Drake; Laughlin, Gregory; Langton, Jonathan; Lewis, Nicole (IOP Publishing, 2014-07)
    The hot Jupiter HD 209458b is particularly amenable to detailed study as it is among the brightest transiting exoplanet systems currently known (V-mag = 7.65; K-mag = 6.308) and has a large planet-to-star contrast ratio. ...
  • Sinangil, Mahmut Ersin; Verma, Naveen; Chandrakasan, Anantha P. (Institute of Electrical and Electronics Engineers, 2009-11)
    8T bit-cells hold great promise for overcoming device variability in deeply scaled SRAMs and enabling aggressive voltage scaling for ultra-low-power. This paper presents an array architecture and circuits with minimal ...
  • Grulkowski, Ireneusz; Jayaraman, Vijaysekhar; Cable, Alex E.; Kraus, Martin F.; Hornegger, Joachim; Duker, Jay S.; Fujimoto, James G.; Liu, Jonathan Jaoshin; Potsaid, Benjamin M. (SPIE, 2013-03)
    Recent advances in swept-source / Fourier domain optical coherence tomography (SS-OCT) technology enable in vivo ultrahigh speed imaging, offering a promising technique for four-dimensional (4-D) imaging of the eye. Using ...
  • Levin, Anat; Hasinoff, Samuel W.; Green, Paul; Durand, Fredo; Freeman, William T. (Association for Computing Machinery, 2009-07)
    Depth of field (DOF), the range of scene depths that appear sharp in a photograph, poses a fundamental tradeoff in photography---wide apertures are important to reduce imaging noise, but they also increase defocus blur. ...
  • Stojanovic, Vladimir Marko; Kim, Byungsub (Institute of Electrical and Electronics Engineers, 2009-05)
    This paper presents a transceiver for fast and energy-efficient global on-chip communication, consisting of a nonlinear charge-injecting (CI) 3-tap transmit filter (TX) and a sampling receiver (RX) with transimpedance ...
  • Suntharalingam, Vyshnavi; Berger, Robert; Clark, Stewart; Knecht, Jeffrey M.; Messier, Andrew V.; Newcomb, Kevin L.; Rathman, Dennis D.; Slattery, Richard L.; Soares, Antonio M.; Stevenson, Charles; Warner, Keith; Young, Douglas J.; Ang, Lin Ping; Mansoorian, Barmak; Shaver, David C. (Institute of Electrical and Electronics Engineers, 2009-02)
    The dominant trend with conventional image sensors is toward scaled-down pixel sizes to increase spatial resolution and decrease chip size and cost. While highly capable chips, these monolithic image sensors devote substantial ...
  • Schattenburg, Mark Lee; Heilmann, Ralf K.; Chang, Chih-Hao; Ahn, Minseung; Padmore, Howard A.; Yashchuk, Valeriy V.; Gullikson, Eric M.; Salmassi, Farhad; Cambie, Rossana; Anderson, Erik H.; Voronov, Dmitriy L. (The International Society for Optical Engineering, 2009-09)
    We report on recent progress in developing diffraction gratings which can potentially provide extremely high spectral resolution of 10[superscript 5]-10[superscript 6] in the EUV and soft x-ray photon energy ranges. Such ...
  • del Alamo, Jesus A.; Kim, Dae-Hyun; Chen, Peter; Ha, Wonill; Urteaga, Miguel; Brar, B. (Institute of Electrical and Electronics Engineers (IEEE), 2010-12)
    We have demonstrated 50-nm enhancement-mode (E-mode) In[subscript 0.7]Ga[subscript 0.3]As PHEMTs with f[subscript max] in excess of 1 THz. The devices feature a Pt gate sinking process to effectively thin down the In[subscript ...
  • Qazi, Masood; Stawiasz, Kevin; Chang, Leland; Chandrakasan, Anantha P. (Institute of Electrical and Electronics Engineers, 2010-02)
    An 8T SRAM fabricated in 45 nm SOI CMOS exhibits voltage scalable operation from 1.2 V down to 0.57 V with access times from 400 ps to 3.4 ns. Timing variation and the challenge of low-voltage operation are addressed with ...
  • Gehring, Mary; Erdmann, Robert Michael; Souza, Amanda L.; Clish, Clary (Genetics Society of America, The, 2014-11)
    5-Hydroxymethylcytosine (5-hmC) is an intermediate in active demethylation in metazoans, as well as a potentially stable epigenetic mark. Previous reports investigating 5-hydroxymethylcytosine in plants have reached ...
  • Kim, Tae-Woo; Kim, Dae-Hyun; del Alamo, Jesus A. (Institute of Electrical and Electronics Engineers (IEEE), 2010-12)
    We have developed a new self-aligned gate technology for InGaAs High Electron Mobility Transistors with non-alloyed Mo-based ohmic contacts and a very low parasitic capacitance gate design. The new process delivers a contact ...
  • Verma, Naveen; Ramadass, Yogesh Kumar; Kwong, Joyce; Chandrakasan, Anantha P. (Institute of Electrical and Electronics Engineers, 2008-12)
    Aggressive supply voltage scaling to below the device threshold voltage provides significant energy and leakage power reduction in logic and SRAM circuits. Consequently, it is a compelling strategy for energy-constrained ...
  • Daly, Denis C.; Chandrakasan, Anantha P. (Institute of Electrical and Electronics Engineers, 2009-08)
    A 6-bit highly digital flash ADC is implemented in a 0.18 mum CMOS process. The ADC operates in the subthreshold regime down to 200 mV and employs comparator redundancy and reconfigurability to improve linearity. The ...
  • Kumar, Vijay; Park, Daniel S.; Taylor, Washington (Springer-Verlag/International School for Advanced Studies (SISSA), 2011-04)
    We systematically investigate the finite set of possible gauge groups and matter content for supergravity theories in six dimensions with no tensor multiplets, focusing on nonabelian gauge groups which are a product of ...
  • Dawson, Joel L.; Chung, SungWon (VLSI-TSA, 2009-04)
    We present a digitally assisted subsampler, designed to serve as the downconversion path in adaptive predistorters for 800MHz–5.8GHz RF power amplifiers. We use digital averaging to overcome the noise folding problems ...
  • Nguyen, Khoa M.; Kim, Helen H.; Sodini, Charles G. (Institute of Electrical and Electronics Engineers (IEEE), 2010-01)
    A 76 GHz phase-locked loop (PLL) was designed in 0.13 μm IBM BiCMOS8HP technology with the intended application of millimeter-wave imaging. The PLL has a type II second order loop filter. The voltage-controlled oscillator ...
  • Park, Matthew; Perrott, Michael H. (Institute of Electrical and Electronics Engineers, 2009-12)
    The use of a VCO-based integrator and quantizer within a continuous-time (CT) \Delta \Sigma analog-to-digital converter (ADC) structure is explored, and a custom prototype in a 0.13 \mum CMOS with a measured performance ...
  • Mercier, Patrick P.; Bandyopadhyay, Saurav; Lysaght, Andrew C.; Stankovic, Konstantina M; Chandrakasan, Anantha P.; Stankovic, Konstantina M. (Institute of Electrical and Electronics Engineers (IEEE), 2013-09)
    This paper presents an ultra-low-standby-power radio transmitter that was designed for applications with extreme energy storage and/or energy harvesting constraints. By utilizing aggressive power gating techniques within ...
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