A ΣΔ Closed-Loop Interface for a MEMS Accelerometer with Digital Built-In Self-Test Function
Micromachines, 2018 Sigma-delta (ΣΔ) closed-loop operation is the best candidate for realizing the interface circuit of MEMS accelerometers. However, stability and reliability problems are still the main obstacles hindering its further development for high-end ...
Dongliang Chen +5 more
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Analogue to Digital and Digital to Analogue Converters (ADCs and DACs): A Review Update [PDF]
, 2016 This is a review paper updated from that presented for CAS 2004. Essentially, since then, commercial components have continued to extend their performance boundaries but the basic building blocks and the techniques for choosing the best device and ...
Pickering, J.
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A Driving Technique for AC-AC Direct Matrix Converters Based on Sigma-Delta Modulation
Energies, 2019 Direct conversion of AC power between three-phase systems operating at different frequencies can be achieved using solid-state circuits known as matrix converters.
Simone Orcioni +3 more
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Description of a 2-Bit Adaptive Sigma-Delta Modulation System with Minimized Idle Tones
EURASIP Journal on Advances in Signal Processing, 2007 A 2-bit adaptive sigma delta modulation system that inherently eliminates the idle tones present in conventional and other adaptive sigma delta systems is described.
G. S. Tombras, E. A. Prosalentis
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Long Term Stable Δ-Σ NDIR Technique Based on Temperature Compensation
Applied Sciences, 2019 For a fast and long term stable Non Dispersive Infrared (NDIR) technology of gas concentration measurement, the temperature compensation is required.
Chih-Hsiung Shen, Jun-Hong Yeah
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A selectable-bandwidth 3.5 mW, 0.03 mm(2) self-oscillating Sigma Delta modulator with 71 dB dynamic range at 5 MHz and 65 dB at 10 MHz bandwidth [PDF]
, 2012 In this paper we present a dual-mode third order continuous time Sigma Delta modulator that combines noise shaping and pulse-width-modulation (PWM). In our 0.18 micro-m CMOS prototype chip the clock frequency equals 1 GHz, but the PWM carrier is only ...
Gielen, Georges +3 more
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Nonlinear behaviors of bandpass sigma delta modulators with stable system matrices [PDF]
, 2005 It has been established that a class of bandpass sigma delta modulators (SDMs) may exhibit state space dynamics which are represented by elliptical or fractal patterns confined within trapezoidal regions when the system matrices are marginally stable. In
Ho, Yuk-Fan +3 more
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Second-order sigma-delta modulator in standard cmos technology [PDF]
Serbian Journal of Electrical Engineering, 2004 As a part of wider project sigma-delta modulator was designed. It represents an A/D part of a power meter IC. Requirements imposed were: SNDR and dynamic range > 50 dB for maximum input swing of 250 mV differential at 50 Hz.
Milovanović Dragiša +2 more
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Using a Second Order Sigma-Delta Control to Improve the Performance of Metal-Oxide Gas Sensors [PDF]
, 2018 Controls of surface potential have been proposed to accelerate the time response of MOX gas sensors. These controls use temperature modulations and a feedback loop based on first-order sigma-delta modulators to keep constant the surface potential ...
Domínguez Pumar, Manuel +4 more
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A Miniature Pockels Cell with Novel Electrode Geometry
Sensors, 2009 This paper discusses important elements of the Pockels sensing cell design. A novel electrode geometry is analyzed in order to obtain maximum sensitivity response from Pockels crystals (Bi12GeO20). This neither transversal nor truly longitudinal geometry,
Pedja Mihailovic +2 more
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