7-65
PZ3 Low Impedance Amplifier
PZ3
Low
Impedance
Amplifier
PZ3 Overview
The PZ3 is a high channel count, low
impedance amplifier well suited for ECOG,
Evoked Potentials, EEGs, LFP’s, EMGs, and
other similar recording applications. Available in
32, 64, and 128 channel models, the PZ3
amplifier offers shared or true differential
operation, low input referred noise, impedance
checking, and an optional high input range
mode.
System Hardware
A standard configuration for low sample rate,
low impedance recordings includes 1.5 mm
TouchProof connectors for electrodes, a PZ3
amplifier, and an RZ2 base station.
The battery powered PZ3 digitizes and amplifies
signals recorded from each of the electrode
channels. All digitized signals are sent via a
single fiber optic connection to the RZ2 base
station for further processing. The RZ2 also sends amplifier configuration information
to the PZ3 across the fiber optics.
The diagram below illustrates this flow of data and control information through the
system.
PZ3
Data
and
Control
Flow
Diagram
