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Catalog excerpts
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Differential AC Amplifier A-M SYSTEMS • Four independent amplifiers in one instrument • No Headstage required • Three gain settings • Adjustable Low-Pass and High-Pass filters • Notch filter for power line frequency • Low noise • High input impedance • High common-mode rejection • Low input bias current The Model 1700 Differential AC Amplifier has been designed for research or teaching applications which require extracellular neurophysiological recording from excitable tissue, such as nerve, muscle (EMG), EEG, EKG, and ERG recordings. The instrument contains four independent, isolated amplifiers in a single enclosure allowing the researcher to record several signals simultaneously. Combining four channels in one instrument significantly reduces equipment costs while providing a more convenient research environment. Each channel in the Model 1700 consists of an high-gain, low-noise differential amplifier stage followed by high-pass, low-pass, and notch filters. A stimulator input is also integrated into each channel to allow for recording or stimulating through the same electrode. Simply connect your stimulation signal source to the input and set the MODE switch to STIM; this eliminates the need to disconnect the electrode inputs from the amplifier during stimulation. Four 1-meter-long input cables are included with the amplifier. These cables can be extended up to a total length of 4 meters for an additional fee. The Model 1700 Differential AC Amplifier is designed for use with low impedance (<1.5 ' Driven cable shield provides reduced megohm) electrodes, and is therefore suitable for use with suction, nerve cuff, hook, capacitance surface, and simple metal electrodes. A-M Systems recommends the use of a headstage Custom gain and filter settings available probe (preamplifier) for use with higher impedance electrodes (see Application notes on reverse for add'itional information). • Includes Four one-meter long input cables • Includes rack mount hardware • 3-year warranty Common applications for the Model 1700 Differential AC Amplifier include, but are not limited to: ° Multiple-Unit Recordings ° Evoked Potentials ° EEG / EMG / EKG / ERG recordings ° Long-term Potentiation The Model 1700 Differential AC Amplifier is designed for research grade recording quality, with a straightforward interface that also makes it ideal for teaching applications
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Differential AC Amplifier Application Notes: Recording with high-impedance electrodes While the Model 1700 Differential AC Amplifier was designed to record using low-impedance electrodes, many researchers have requested headstage probes that could be mated to one or more channels of the Model 1700 for measurements using electrodes with impedances greater than 1.5 megohms. A-M Systems can modify one, two, three, or all four channels to work with one of our headstage probes (pictured below). Following the modification, the overall gain of the Model 1700 is not altered; however, the impedance...
Open the catalog to page 2All A-M Systems catalogs and technical brochures
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Model 3600
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Model 3000
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Model 2400
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Model 4000
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Model 3500
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Model 1800
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MODEL 3100
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Model 1600
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Model 3300
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Model 2200 & Model 2300
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Model 3800
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Model 2100
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Model 4100
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