6-31PZ5M Medically Isolated NeuroDigitizerPZ5M Medically IsolatedNeuroDigitizerPZ5M OverviewThe PZ5M is a multi-modal neurodigitizer, suitable for recording a broad range ofbiological potentials, combining the functionality of high and low impedance amplifiersin a single device. The device is battery operated with alternative Mains power, usedprimarily for charging, with full biomedical isolation for subject safety. The rack-mountable PZ5M-512 can be used for simultaneous input of EEG, EMG, LFP andSingle Unit signals. It is available with 256 channels (PZ5M-256) or 512 channels(PZM-512).By oversampling the signal with very fast instrumentation grade converters, TDT’scustom hybrid A/D circuit yields 28 bits of resolution and unparalleled dynamicrange. Optional DC coupling offers zero phase distortion across the signal bandwidth.Sampling rate and down-sampling filters can be optimized on each logical amplifier,ensuring the best possible signal fidelity for the intended input type. The +/-500 mVinput range is large enough to accept any biological potential and most stimulusartifacts without saturating.The neurodigitizer inputs are organized into multiple banks of 64 channels. Eachbank is electrically isolated, meaning the ground and reference channels are notinherently shared between banks. Multiple banks can be grouped into a single logicalamplifier that shares the same settings and ground/reference across each bank in thelogical amplifier. There are several different referencing modes, optimizing ground andreference for different types of recording. Each logical amplifier can use the groundas a reference, use a shared reference, use a unique reference on each bank orimplement full per-channel differential referencing.A touchscreen interface provides immediate preview of inputs, impedance checkingand real-time control and configuration options for each amplifier bank.
