TD250 V8 Manual
3
Rev 2, 31-09-2020
1
Introduction
The TD250 is an ultra-low noise, six-channel voltage amplifier with +/-250V output range. The six
channels can be ordered as either independent (TD250-SGL), or as three channels with non-inverting
and inverting outputs (TD250-INV), which are ideal for driving piezoelectric tube scanners. The
inverting configuration can also be used to /-500V with a bridged load.
The TD250 can drive unlimited capacitive loads such as piezoelectric tubes, stack actuators, standard
piezoelectric actuators, and bender actuators. Applications include nanopositioning, microscopy,
electro-optics, and vibration control.
The input and output connectors are industry standard 9-Pin D-Sub connectors. The amplifier is
supplied with two 90cm DSUB cables and two breakout boxes that include BNC connectors and plug-
in screw-terminals. OEM and customized versions are also available.
The TD250 Version 8 provides a number of improvements over previous hardware:
The enclosure contains no fans and generates zero mechanical noise,
Increased output current from 22 to 28 mArms,
Improved noise performance, particularly at low-frequencies,
Remote status monitoring and remote shutdown.
Example applications include:
Compatible Actuators
Piezoelectric tubes
+/-250V
Piezoelectric plates
and other actuators
+/-250V with a grounded load, or
+/-500V in bridged configuration
Two wire benders
+/-250V with one electrode grounded (six actuators), or
+/-500V in bridged configuration (three actuators)
Three wire benders
+/-250V on each electrode (3 actuators), or
up to +/-250V on 5 act HV Bias.
2
Warnings / Notes
This device produces hazardous potentials and requires qualified personnel
and observation of mandatory safety protocols. Do not operate the device
with exposed conductors.
