sigma-delta converter

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A circuit that generates a 1-bit pulse density modulated (PDM) signal from analog input. It creates fixed-width pulses in relation to the amplitude of the analog waveform. As the wave amplitude rises, 1's are produced. As it falls, 0's result. If it remains neutral, alternating 01's are created. See PDM and SACD.

sigma-delta converter [‚sig·mə ‚del·tə kən′vərd·ər]

(electronics)

A class of electronic systems containing both analog and digital subsystems whose most common application is the conversion of analog signals to digital form, and vice versa, using pulse density modulation to create a high-rate stream of single-amplitude pulses in either case. Also known as delta-sigma converter.

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No references found			Key features include advanced sigma-delta converters, which are used alongside digital decimation filters, to give high quality audio at sample rates from 8kHz to 48 kHz. Wolfson ADCs Bring High-Performance Recording to Portable Consumer ... by Business Wire The CDC is a high-resolution sigma-delta converter that accepts direct capacitance inputs and enables on a single chip a level of precision previously only possible with conventional analog voltage-to-digital converters. Analog Devices' Capacitance-to-Digital Converter Receives Sensors ... by Business Wire The NI FlexII ADC incorporates patented NI methods for reducing the linearity and temperature drift errors inherent to multi-bit sigma-delta converters to achieve unprecedented dynamic range at high sample rates. National Instruments Introduces Universal Instrument for Dynamic ... by Business Wire			Sigismund II Augustus Sigismund III Sigismund III Vasa Sigizmund Aleksandrovich Levanevskii Sigizmund Grigorevich Voislav Sigizmund Levanevskii Sigizmund Natanovich Valk Sigizmund Valk Sigizmund Voislav SIGLA Siglufjörður sigma sigma algebra Sigma and Pi Bonds sigma bond sigma factor sigma field sigma finite sigma function Sigma Functions sigma hyperon sigma phase sigma pile sigma ring sigma-delta analog-to-digital converter sigma-delta converter sigma-delta digital-to-analog converter sigma-delta modulator sigma-minus hyperonic atom sigma-T sigmaspire sigmatron sigmatropic shift sigmoid sigmoid colon sigmoid distortion sigmoidal dune sigmoidal fold sigmoiditis sigmoidoscope Sigmund Feist Sigmund Freud Sigmund Herberstein Sigmund Jahn Sigmund Jähn Sign sign bit sign check indicator sign convention sign digit sign flag			Sigma Omicron Pi Sigma periestigmenon Sigma periestigmenon Sigma periestigmenon sigma phase Sigma Phi Epsilon Sigma Phi Epsilon Colorado Area Tournament Sigma Pi Sigma Pi Parents Association Sigma Pi Sigma sigma pile Sigma Property Management Services Sigma ring Sigma Sigma Rho Sigma Tau Delta Sigma Tau Gamma Sigma Theta Phi Sigma Theta Tau Sigma Theta Tau International Sigma Theta Tau International, Inc Sigma Zeta Omega Sigma-70 Sigma-70 Sigma-70 Sigma-algebra Sigma-Bond-to-Ligand Charge Transfer sigma-delta analog-to-digital converter sigma-delta converter sigma-delta digital-to-analog converter Sigma-Delta Modulator Sigma-Delta Modulator Sigma-Dependent Pi-Orbital Electronegativity model sigma-minus hyperonic atom Sigma-Point Kalman Filter Sigma-ring sigma-T SIGMAA SIGMALOG SIGMAP Sigmaplot Worksheet sigmas sigmas sigmas sigmas Sigmas Against Teen-Age Pregnancy Sigmas Waging War Against Cancer sigmaspire sigmate sigmate sigmate Sigmatism Sigmatism Sigmatism sigmatron Sigmatropic reaction Sigmatropic shift SIGMBI SIGMET

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