USER MANUAL
● High voltage: 20x amplification up to +75V and -75V output voltage
● DC to 20kHz large signal bandwidth and 50kΩ output resistance
● Power supply 24V DC, battery powered operation possible
● No overshoot with capacitive loads: bandwidth changes automatically
to ensure stability
● Short-circuit protected output
About this manual
This user manual is an integral part of the
Falco Systems WMA-005 and WMA-
005LF high voltage amplifier products.
Please read it carefully and pay attention
to the recommendations and instructions
for safe use.
The WMA-005 high voltage
amplifier: general description
The Falco Systems WMA-005 and WMA-
005LF are high voltage amplifiers that run
from an 24V DC power supply and can be
battery powered if required, e.g. for use in
a Faraday cage. Its internal high voltage
generator is inductor-free and hence does
not spread magnetic interference in
sensitive experimental setups. Its large
voltage range makes it an excellent choice
for use with MEMS devices, EO-
modulators, piezo actuator positioning
systems, beam steering components, and
many more.
The amplifiers’ full-power frequency
response has a -3dB corner frequency at
20kHz. The input impedance is 100kΩ and
the output 50kΩ.
The output noise of the WMA-005 is
<3mVrms. For extremely low noise
applications where bandwidth is not an
issue, the dedicated WMA-005LF version
is available. This amplifier contains an
output low pass filter capacitor which
reduces the bandwidth to 50Hz, but makes
the noise drop to 0.1mVrms. This
bandwidth-limited amplifier is ideal for
MEMS or piezo positioning with manual
voltage adjustment requiring extremely low
noise.
Falco Systems WMA-005 High Voltage Amplifier DC – 20kHz
