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- Sample_and_hold abstract "In electronics, a sample and hold (S/H, also "follow-and-hold") circuit is an analog device that samples (captures, grabs) the voltage of a continuously varying analog signal and holds (locks, freezes) its value at a constant level for a specified minimum period of time. Sample and hold circuits and related peak detectors are the elementary analog memory devices. They are typically used in analog-to-digital converters to eliminate variations in input signal that can corrupt the conversion process.A typical sample and hold circuit stores electric charge in a capacitor and contains at least one fast FET (field effect transistor) switch and at least one operational amplifier. To sample the input signal the switch connects the capacitor to the output of a buffer amplifier. The buffer amplifier charges or discharges the capacitor so that the voltage across the capacitor is practically equal, or proportional to, input voltage. In hold mode the switch disconnects the capacitor from the buffer. The capacitor is invariably discharged by its own leakage currents and useful load currents, which makes the circuit inherently volatile, but the loss of voltage (voltage drop) within a specified hold time remains within an acceptable error margin.".
- Sample_and_hold thumbnail Sample-hold-circuit.svg?width=300.
- Sample_and_hold wikiPageExternalLink product_detail.jsf?isbn=0&catno=k12557.
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- Sample_and_hold wikiPageExternalLink v=onepage&q=sample%20and%20hold&f=false.
- Sample_and_hold wikiPageExternalLink MT-090.pdf.
- Sample_and_hold wikiPageExternalLink an517.pdf.
- Sample_and_hold wikiPageID "571325".
- Sample_and_hold wikiPageLength "5927".
- Sample_and_hold wikiPageOutDegree "35".
- Sample_and_hold wikiPageRevisionID "683022855".
- Sample_and_hold wikiPageWikiLink Active_matrix.
- Sample_and_hold wikiPageWikiLink Analog-to-digital_converter.
- Sample_and_hold wikiPageWikiLink Analog_circuit.
- Sample_and_hold wikiPageWikiLink Analog_signal.
- Sample_and_hold wikiPageWikiLink Analog_signal_to_discrete_time_interval_converter.
- Sample_and_hold wikiPageWikiLink Analogue_electronics.
- Sample_and_hold wikiPageWikiLink Buffer_amplifier.
- Sample_and_hold wikiPageWikiLink Capacitor.
- Sample_and_hold wikiPageWikiLink Category:Digital_signal_processing.
- Sample_and_hold wikiPageWikiLink Category:Electronic_circuits.
- Sample_and_hold wikiPageWikiLink Digital-to-analog_converter.
- Sample_and_hold wikiPageWikiLink Display_motion_blur.
- Sample_and_hold wikiPageWikiLink Electric_charge.
- Sample_and_hold wikiPageWikiLink Electronics.
- Sample_and_hold wikiPageWikiLink Field-effect_transistor.
- Sample_and_hold wikiPageWikiLink Grayscale.
- Sample_and_hold wikiPageWikiLink Greyscale.
- Sample_and_hold wikiPageWikiLink Hold_time.
- Sample_and_hold wikiPageWikiLink IEEE_Jun-ichi_Nishizawa_Medal.
- Sample_and_hold wikiPageWikiLink Input_impedance.
- Sample_and_hold wikiPageWikiLink Leakage_(electronics).
- Sample_and_hold wikiPageWikiLink Liquid_crystal.
- Sample_and_hold wikiPageWikiLink Memory.
- Sample_and_hold wikiPageWikiLink Neil_Young.
- Sample_and_hold wikiPageWikiLink Operational_amplifier.
- Sample_and_hold wikiPageWikiLink Pixel.
- Sample_and_hold wikiPageWikiLink Precision_rectifier.
- Sample_and_hold wikiPageWikiLink Remix_album.
- Sample_and_hold wikiPageWikiLink Simian_Mobile_Disco.
- Sample_and_hold wikiPageWikiLink Successive_approximation_ADC.
- Sample_and_hold wikiPageWikiLink Successive_approximation_converter.
- Sample_and_hold wikiPageWikiLink Thin-film_transistor.
- Sample_and_hold wikiPageWikiLink Volatile_memory.
- Sample_and_hold wikiPageWikiLink Voltage.
- Sample_and_hold wikiPageWikiLink File:Sample-hold-circuit.svg.
- Sample_and_hold wikiPageWikiLink File:Sampled.signal.svg.
- Sample_and_hold wikiPageWikiLink File:Zeroorderhold.signal.svg.
- Sample_and_hold wikiPageWikiLinkText "S&H".
- Sample_and_hold wikiPageWikiLinkText "S/H".
- Sample_and_hold wikiPageWikiLinkText "Sample and Hold".
- Sample_and_hold wikiPageWikiLinkText "Sample and hold".
- Sample_and_hold wikiPageWikiLinkText "sample and hold".
- Sample_and_hold wikiPageWikiLinkText "sample-and-hold amplifiers".
- Sample_and_hold wikiPageWikiLinkText "track-and-hold".
- Sample_and_hold hasPhotoCollection Sample_and_hold.
- Sample_and_hold wikiPageUsesTemplate Template:About.
- Sample_and_hold wikiPageUsesTemplate Template:Cite_book.
- Sample_and_hold wikiPageUsesTemplate Template:Reflist.
- Sample_and_hold subject Category:Digital_signal_processing.
- Sample_and_hold subject Category:Electronic_circuits.
- Sample_and_hold hypernym Device.
- Sample_and_hold type Device.
- Sample_and_hold type Algorithm.
- Sample_and_hold type Circuit.
- Sample_and_hold comment "In electronics, a sample and hold (S/H, also "follow-and-hold") circuit is an analog device that samples (captures, grabs) the voltage of a continuously varying analog signal and holds (locks, freezes) its value at a constant level for a specified minimum period of time. Sample and hold circuits and related peak detectors are the elementary analog memory devices.".
- Sample_and_hold label "Sample and hold".
- Sample_and_hold sameAs Sample-and-Hold-Schaltung.
- Sample_and_hold sameAs Näytteenotto-_ja_pitopiiri.
- Sample_and_hold sameAs Sample_and_hold.
- Sample_and_hold sameAs m.02r6tz.
- Sample_and_hold sameAs Устройство_выборки_и_хранения.
- Sample_and_hold sameAs Q836482.
- Sample_and_hold sameAs Q836482.
- Sample_and_hold wasDerivedFrom Sample_and_hold?oldid=683022855.
- Sample_and_hold depiction Sample-hold-circuit.svg.
- Sample_and_hold isPrimaryTopicOf Sample_and_hold.