TDT PZ2, Manual

6-3

PZ2 PreAmp

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.