Model 9400 400Vp-p Four-Channel Signal Amplifier0 pages
MODEL 9400
400Vp-p Four Channel
Signal Amplier
• High voltage output to 400Vp-p (±200V)
• Output current to 50mA
• Full power bandwidth from DC to >500kHz
• Slew rate to 400V/μs
• Monitor Outputs for each channel
• Precise signal amplication for multiple applications
• Compatible with any of the Tabor waveform generators
• Special unipolar mode for MEMS engine drivers
Model 9400 was designed as a general
purpose, wide band and high voltage
amplier however, with specic applications
in mind. It has four channels built in a
small case size to save space and cost
but without compromising bandwidth and
signal integrity.
Solve Common Problems
Model 9400 can output signals from -200V
to +200V with continuous currents up to
50mA per channel. The output is driven from
a 0.1W source and, with some degradation
of its bandwidth, can drive capacitive
loads up to 1nF, while maintaining its full
amplitude range. Model 9400 has a rearpanel monitor output that divides the main
output signal by 100 for applications that
require monitoring of the output signal with
low voltage sensors.
Modes of Operation
The 9400 has two modes of operation. The
rst is normal mode where each channel
amplies and outputs bipolar signals with a
gain of x50. In this mode, the input signal
is amplied and delivered to the output
terminals without modication of its original
properties, except its amplitude level. Using
this mode of operation, each channel can be
used separately to amplify a unique signal.
The second mode of operation is the
unipolar mode where the signal is applied
to one input, rectied, amplied and output
through two separate outputs. Using
this mode, the amplier is converted to a
one-input, two-output system, specically
designed to operate the up/down and
right/left actuators of a typical MEMS micro
engine, as well as for other applications
requiring the precise conversion of bipolar
to unipolar signals.
Target Applications
The amplier case was designed to stack
on top or below other Tabor products. It
can also be mounted alongside a Tabor
generator in a standard 19" rack. The
waveform-amplier combo is an ideal
solution for virtually any high-voltage, wide
bandwidth application.
Safety
Safety played a major role during the design
of the Model 9400. The high voltage path to
the amplier circuit is blocked by a front panel
mechanical switch and accidental application
of high power to the UUT is prevented by a
safety latch. The 9400 will output high voltage
signals only after the safety latch has been
lifted and the high voltage switch ipped to
ON position. In emergency situations, one
can hit the protective latch to immediately
remove the high voltage power from the
output terminals. As an additional visual
safety feature, a red light glows on the front
panel whenever the high voltage is turned
on.