Publications related to A 1.8V 12-bit 230-MS/s pipeline ADC in 0.18um CMOS technology

Design and Exploration of Low-Power Analog to Information Conversion Based on Compressed Sensing

David Atienza Alonso, Pierre Vandergheynst, Nadia Khaled, Hossein Mamaghanian

The long-standing analog-to-digital conversion paradigm based on Shannon/Nyquist sampling has been challenged lately, mostly in situations such as radar and communication signal processing where signal bandwidth is so large that sampling architectures cons ...

2012

Diffractionless Fourier Domain Microscopy

Theo Lasser, Rainer Leitgeb, Cédric Blatter, Tilman Schmoll

Several methods have been proposed and realized to increase the lateral resolution in microscopy and ultimately to beat the actual diffraction limit as stated by Abbe. Structured illumination for example enhances the lateral resolution by virtually extendi ...

2011

Random Sampling ADC for Sparse Spectrum Sensing

Andreas Peter Burg

Scanning large bandwidths (spectrum sensing) pushes today’s analog hardware to its limits since periodic sampling at Nyquist rate with sufficient resolution is often prohibitively complex. In this paper, we consider a scenario where the signal to be acquir ...

2011

Subthreshold Current-Mode Delta-Sigma Quantizer with 3-Decade Scalable Sampling Rate and pico-Ampere Range Resolution

Seyed Armin Tajalli, Yusuf Leblebici

A current-mode

\Delta\Sigma

analog-to-digital data converter (ADC) for biomedical readout front-end systems is being presented. The core of this circuit is a current-controlled ring oscillator (CCO) whose oscillation frequency is proportional to the inpu ...

2010

Multichannel Sampling with Unknown Gains and Offsets: A Fast Reconstruction Algorithm

Martin Vetterli, Yue Lu

We study a multichannel sampling scheme, where different channels observe scaled and shifted versions of a common bandlimited signal. The channel gains and offsets are unknown a priori, and each channel samples at sub-Nyquist rates. This setup appears in m ...

2010

Suppression of the zero-order in off-axis digital holography through nonlinear filtering

Michaël Unser, Christian Depeursinge, Nicolas Pavillon, Jonas Kühn, Chandra Sekhar Seelamantula

We present experimental validation of a new reconstruction method for off-axis digital holographic microscopy (DHM). This method effectively suppresses the object auto-correlation — namely the zero-order term — from holographic data, thereby improving the ...

2009

Low-power and low-voltage delta-sigma analog-to-digital converters for digital radio in standard CMOS technology

Nicola Scolari

The transceivers of a wireless sensor network (WSN) have to fulfill the low-power and low-voltage constraints. The WiseNET project has already proven that it is possible to design a receiver working at 1V and consuming less than 2mW. However this transceiv ...

EPFL2007

Flexible Ultra Low Power Successive Approximation Analog-to-Digital Converter with Asynchronous Clock Generator

Rafal Tomasz Dlugosz

An ultra low power 8-bit current-mode successive approximation (SAR) analog-to-digital (ADC) converter for Wireless Sensor Network (WSN) applications is presented. The proposed ADC contains a new asynchronous clock generator, which works only during data p ...

2007

Super-Resolution from Unregistered and Totally Aliased Signals Using Subspace Methods

Martin Vetterli, Luciano Sbaiz, Patrick Vandewalle

In many applications, the sampling frequency is limited by the physical characteristics of the components: the pixel pitch, the rate of the A/D converter, etc. A low-pass filter is then often applied before the sampling operation to avoid aliasing. However ...

Institute of Electrical and Electronics Engineers2007

Sampling Moments and Reconstructing Signals of Finite Rate of Innovation: Shannon Meets Strang-Fix

Martin Vetterli, Thierry Blu, Pier Luigi Dragotti

Consider the problem of sampling signals which are not bandlimited, but still have a finite number of degrees of freedom per unit of time, such as, for example, nonuniform splines or piecewise polynomials, and call the number of degrees of freedom per unit ...

Institute of Electrical and Electronics Engineers2007

A 1.8V 12-bit 230-MS/s pipeline ADC in 0.18um CMOS technology

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Design and Exploration of Low-Power Analog to Information Conversion Based on Compressed Sensing

Diffractionless Fourier Domain Microscopy

Random Sampling ADC for Sparse Spectrum Sensing

Subthreshold Current-Mode Delta-Sigma Quantizer with 3-Decade Scalable Sampling Rate and pico-Ampere Range Resolution

Multichannel Sampling with Unknown Gains and Offsets: A Fast Reconstruction Algorithm

Suppression of the zero-order in off-axis digital holography through nonlinear filtering

Low-power and low-voltage delta-sigma analog-to-digital converters for digital radio in standard CMOS technology

Flexible Ultra Low Power Successive Approximation Analog-to-Digital Converter with Asynchronous Clock Generator

Super-Resolution from Unregistered and Totally Aliased Signals Using Subspace Methods

Sampling Moments and Reconstructing Signals of Finite Rate of Innovation: Shannon Meets Strang-Fix

Design and Exploration of Low-Power Analog to Information Conversion Based on Compressed Sensing

Diffractionless Fourier Domain Microscopy

Random Sampling ADC for Sparse Spectrum Sensing

Multichannel Sampling with Unknown Gains and Offsets: A Fast Reconstruction Algorithm

Subthreshold Current-Mode Delta-Sigma Quantizer with 3-Decade Scalable Sampling Rate and pico-Ampere Range Resolution

Sampling Moments and Reconstructing Signals of Finite Rate of Innovation: Shannon Meets Strang-Fix

Suppression of the zero-order in off-axis digital holography through nonlinear filtering

Flexible Ultra Low Power Successive Approximation Analog-to-Digital Converter with Asynchronous Clock Generator

Low-power and low-voltage delta-sigma analog-to-digital converters for digital radio in standard CMOS technology

Super-Resolution from Unregistered and Totally Aliased Signals Using Subspace Methods