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PZ5 NeuroDigitizer
PZ5 Overview
The PZ5 is a multi-modal NeuroDigitizer suitable for recording a broad
range of biological potentials. Its analog input boards combine the
functionality of the PZ2 and PZ3 ampli
fi ers in a single device that can be
used for both high and low impedance input signals simultaneously. The
PZ5 may also include digital input boards for inputting signals from an
Intan RHD2000 ampli fi er board with up to 128 channels.
Analog input boards oversample the signal with very fast instrumentation
grade converters. TDT's custom hybrid A/D circuit yields 28 bits of
resolution and unparalleled dynamic range. Optional DC coupling offers
zero phase distortion across the signal bandwidth. Sampling rate and down-sampling fi lters
can be optimized on each logical ampli fi er for the intended input type to optimize signal
fi delity. The ± 500 mV input range is large enough to accept any biological potential and most
stimulus artifacts without saturating.
The PZ5 analog inputs are organized into 16-channel banks. Each bank is electrically isolated,
meaning the ground and reference channels are not inherently shared between banks. Multiple
banks can be grouped into a single logical ampli
fi er that shares the same settings and ground/
reference among each bank in the logical ampli fi er. There are several different referencing
modes; each logical ampli fi er can use the ground as a reference, use a shared reference, use a
unique reference on each bank or implement full per-channel differential referencing.
Digital inputs are used exclusively with RHD2000 series ampli fi er boards and SPI Interface
Cables, available from Intan Technologies. Each input serves as a bank of channels and may
be up to 128 channels, depending on the connected ampli
fi er board. Each digital board can be
its own logical ampli fi er, isolated from the other boards, or be grouped with other digital boards
in a larger logical ampli fi er con fi guration.
A touchscreen interface provides immediate preview of inputs, impedance checking and real-
time control and con
fi guration options for each ampli fi er bank.
The PZ5 is available in 32, 64, 96, or 128 analog channel models. The PZ5 is also available with
2 or 4 digital inputs and models that combine 32 or 64 analog input channels with 2 or 4 digital
PZ5 NeuroDigitizer | 4