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PZ2 PreAmp
PZ2 Overview
The PZ2 is a high channel count preamplifier
suitable for extracellular recordings. The PZ2
preamplifier features a custom 18-bit hybrid A/
D architecture that offers the advantages of
Sigma-Delta converters at significantly lower
power and a fast fiber optic connection capable
of simultaneously transferring up to 256
channels. The extended bandwidth offered by
this connection supports sampling rates up to
~50 kHz and improves signal fidelity, spike
discrimination, sorting, and analysis. Used
exclusively with Z-Series base stations, PZ2
preamplifiers are available in 32, 64, 96, 128,
or 256-channel models.
Note:
When sampling at a rate of ~50 kHz only the first 128 amplifier channels will be
available.
System Hardware
All PZ2 channels are organized into groups of 16 channel banks with each bank
corresponding to a rear panel headstage connector and front panel LED display.
Recorded signals are digitized, amplified, and transmitted to the RZ2 base station via
a single fiber optic connection for further processing. In addition, configuration
information is sent from the RZ2 to the PZ2 preamplifier across the fiber optic
connection.
A standard configuration for neurophysiology recordings includes electrodes (chronic or
acute), one or more Z-Series high impedance headstages, a PZ2 preamplifier, and
an RZ2 base station.
Hardware Set‐up
The diagram below illustrates the connections necessary for PZ2 preamplifier
operation.
6-3
PZ2 PreAmp
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Table of Contents
Related Manuals for TDT PZ2
Summary of Contents for TDT PZ2
- Page 1 System Hardware All PZ2 channels are organized into groups of 16 channel banks with each bank corresponding to a rear panel headstage connector and front panel LED display. Recorded signals are digitized, amplified, and transmitted to the RZ2 base station via a single fiber optic connection for further processing.
- Page 2 One or more Z-Series headstages can be connected to the input connectors on the PZ2 back panel. A 5-meter paired fiber optic cable is included to connect the preamplifier to the base station. The connectors are color coded and keyed to ensure proper connections.
- Page 3 The LED Indicators are also mirrored on the RZ2 LCD display. Display Button The Display button located on the front panel of the PZ2 toggles the clip warning and activity display LEDs between software control and standard operation. To toggle between display modes: •...
- Page 4 TDT hardware removes this ground loop at the cost of raising the overall noise floor a small amount. A banana jack located on the back of the PZ2 (directly to the right of the charger input) provides connections to common ground for the first bank of channels (1- 16).
- Page 5 OFF (middle) position while charging the PZ2. Charging Indicators When powered on, the PZ2 battery status LEDs are also used for each battery to indicate which battery, if any, is charging. These LEDs are found next to the Level LEDs by the headings -A- and -B-.
- Page 6 5 meters standard, cable lengths up to 20 meters** Fiber Optic Cable *Note: When sampling at a rate of 48.828 kHz the PZ2 preamplifier is limited to a maximum of 128 channels. **Note: If longer cable lengths are required, contact TDT.
- Page 7 Ground Negative Voltage (-1.5V) Reference Headstage Detect Headstage Detect Analog Input Channels Analog Input Channels Ground Not Used Note: TDT technical support (386-462-9622 or support@tdt.com) before attempting to make any custom connections to pins 6, 18, or 19. PZ2 PreAmp...
- Page 8 6-10 System 3 PZ2 PreAmp...
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