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Trek Model PZD350A M/S Piezo Driver/Amplifier

The Trek Model PZD350A M/S is a high-voltage DC power amplifier designed to provide precise control of output voltages in the bipolar range of 0 to ±350 V and unipolar ranges of 0 to +700 V or 0 to -700 V DC or peak AC.

Output current ratings are ±400 mA for the bipolar range or ±200 mA for the unipolar ranges. Bipolar or unipolar ranges are customer specified and factory set. The Model PZD350A M/S is configured as a noninverting amplifier with a variable DC gain to 150 V/V. An inverting amplifier configuration is optionally available.

Applications for the Model PZD350A M/S include piezoelectric driving/control, laser modulation, semiconductor research, ER fluid research, and ion beam control.

Features include an all-solid-state design, a slew rate greater than 500 V/us with a small signal bandwidth of 350 kHz for the ±350 volt range, a slew rate greater than 400 V/us for either of the 700 V ranges with a small signal bandwidth of greater than 250 kHz. A four-quadrant active output stage sinks or sources current into reactive or resistive loads throughout the output voltage range. This technique is essential for achieving the accurate output responses and high slew rates demanded by reactive loads.

Precision voltage and current monitors provide buffered low-voltage representations of the high-voltage output and load current for monitoring purposes or for use as feedback signals in a closed-loop system. The Digital Enable feature provides a connection for a remote device to turn ON and OFF the high voltage of the instrument.

Trek Model PZD350A (with 1/2 the current capability) is available in single channel or dual channel instruments and can be operated on a bench top or, with optional hardware, in a standard 19-inch rack. (To PZD350A web page...)

Show/Hide Product Technical Information

AMPLIFIER INPUT & Output

Output (Factory set per customer requirement)

Bipolar Model
0 to ±350 V DC or peak AC.

Current
0 to ±400 mA.

Slew Rate (10% to 90%, typical)
Greater than 500 V/us.

Large Signal Bandwidth (-3 dB)
DC to greater than 250 kHz.

Large Signal Bandwidth (1% distortion)
DC to greater than 90 kHz.

Small Signal Bandwidth (-3 dB)
DC to greater than 350 kHz.

Unipolar Model
0 to +700 V DC or peak AC.

Current
0 to ±200 mA.

Slew Rate (10% to 90%, typical)
Greater than 400 V/us.

Large Signal Bandwidth (-3 dB)
DC to greater than 200 kHz.

Large Signal Bandwidth (1% distortion)
DC to greater than 70 kHz.

Small Signal Bandwidth (-3 dB)
DC to greater than 250kHz.

Unipolar Model
0 to -700 V DC or peak AC.

Current
0 to ±200 mA.

Slew Rate (10% to 90%, typical)
Greater than 400 V/us.

Large Signal Bandwidth (-3 dB)
DC to greater than 200 kHz.

Large Signal Bandwidth (1% distortion)
DC to greater than 70 kHz.

Small Signal Bandwidth (-3 dB)
DC to greater than 250kHz.


Input

Input Voltage Range
0 to ±10 V DC or peak AC. (See Gain Control.)

Input Impedance (noninverting)
90 kΩ, nominal.

Input Impedance (inverting)
1 MΩ, nominal.

PERFORMANCE

DC Voltage Gain
0 to 150 V/V, adjustable using front panel potentiometer.

DC Voltage Gain Accuracy
(input to output)
Better than 0.1% for factory set gain of 100 V/V.

Offset Voltage
Less than ±500 mV.

Settling Time to 1%
Less than 30 us when critically damped.

HV Output Noise (all ranges)
Less than 100 mV rms to 20 kHz for a 100 pF load.
Less than 150 mV rms to 20 kHz with no load.
Measured with the true rms feature of the Hewlett Packard Model 34401A digital multimeter.

Stability (with factory set gain of 100 V/V)
Drift with Temperature
Less than 100 ppm/°C.
Drift with Time
Less than 50 ppm/hr, noncumulative.

Automatic Power Limit
Automatically limits the internal power dissipation to protect the Model PZD350A M/S from overheating. The following graphs illustrate the automatic power limit.

PRODUCT FEATURES

Digital Enable
A BNC connection for a TTL compatible signal to turn on and off the high-voltage output is provided for each channel. A TTL high (or open) turns off the high-voltage output. A TTL low turns on the high-voltage output.

Gain Control
The DC gain of the Model PZD350A M/S is adjustable from 0 to 150 V/V.

Dynamics Adjustment
A graduated potentiometer is used to optimize the AC damping and response of the output signal for various load parameters.

High-Voltage LED
Front panel green LED illuminates when the high-voltage is on.

Input Configuration
The PZD350A M/S is factory configured as a noninverting amplifier. An inverting amplifier configuration is available. Specify when ordering or contact TREK, INC. for more information.

Voltage Monitor
A buffered output providing a low-voltage replica of the high-voltage output.

  • Scale
    1 V/100 V.
  • DC Accuracy
    Better than 0.1% of full scale.
  • Offset Voltage
    Less than 5 mV.
  • Output Noise
    Less than 10 mV rms (measured using the true rms feature of the Hewlett Packard Model 34401A digital multimeter).
  • Output Impedance
    Less than 47 Ω.

Current Monitor
A buffered output providing a low-voltage representation of the load current.

  • Scale
    0.025 V/mA.
  • DC Accuracy
    Better than 1% of full scale.
  • Offset Voltage
    Less than 25 mV.
  • Output Noise
    Less than 25 mV rms (measured using the true rms feature of the Hewlett Packard Model 34401A digital multimeter).
  • Output Impedance
    Less than 0.1 Ω.

Power On LED
Front panel green LED illuminates when the power is on.

Limit Indicator
An amber indicator will illuminate when the Model PZD350A M/S fails to produce the required high-voltage output such as from the Automatic Power Limit or output shorting.

ACCESSORIES SUPPLIED

Operator's manual, SHV mating connector, fuses, and line cord.

 

GENERAL

Dimensions
110 mm H x 434 mm W x 445 mm D
(4.3" H x 17" W x 17.5" D).

Weight
10 kg (22 lb).

High-Voltage Output Connector
SHV connector.

High-Voltage Output Impedance
0.1 Ω.

Amplifier Input
BNC coaxial connector.

Digital Enable Connector
BNC coaxial connector.

Power Requirements

  • Line Supply
    Factory set for one of two ranges: 90 to 127 V AC or 180 to 250 V AC, at 48 to 63 Hz.
  • Power Consumption
    175 VA.

AC Line Receptacle
Standard three-prong AC line connector with an integral fuse holder.

Operating Conditions

  • Temperature
    0 °C to 40 °C.
  • Relative Humidity
    To 85%, noncondensing

CERTIFICATION

TREK, INC. certifies that each Model PZD350A M/S is tested and calibrated to specifications using measurement equipment traceable to the National Institute of Standards and Technology or traceable to consensus standards.

Low Voltage Safety Compliance (EN 61010-1)

Installation Category CAT II:
Local-level mains, appliances, portable equipment.

Pollution Category Degree 1:
Operate in environments where no pollution or
only dry, nonconductive pollution occurs.

All specifications are with no load unless otherwise noted. Factory standard settings are for ±350 volt range, a gain set for 100 V/V, with a noninverting input.

All specifications are with no load unless otherwise noted and are subject to change.

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