Trek 2220 User Manual

Trek Model 2220

Piezo Driver/Power Amplifier

Trek’s Model 2220 is one of several models within our 2200­series of high-voltage 40 W amplifiers. Provided at an
attractive price and offering high performance, the unit
incorporates DC stability, wide bandwidth and well

regulated/controlled AC output signals. It also features full
four-quadrant class AB all-solid-state output stages, DC
offset adjustment with front panel metering, and auto­recovery shutdown to protect the output from being
overpowered. The instrument stage sinks or sources current
into reactive or resistive loads throughout the output voltage
range making it ideal to achieve the accurate output
response and high slew rates demanded by reactive loads.

Key Specifications

!

Output Voltage Range:

!

Output Current Range: peak AC for 5 ms minimum
Slew Rate: 100 V/

!

Large Signal Bandwidth (-3 dB): DC to greater than 7.5 kHz (minimum trip off frequency)

!

Small Signal Bandwidth(-3 dB): DC to greater than 50 kHz

!

DC Voltage Gain: 200 V/V

!

0 to ±2 kV DC or peak AC
0 to ±10 mA DC or ±20 mA

µs, typical

Typical Applications Include

! Piezoelectric driving/control

Electro-optic

!

MEMS

!

Many areas of research

!

Features and Benefits

!

Four-quadrant output for driving capacitive loads

!

2-year warranty
DC offset adjustment with front panel metering

!

Auto-recovery shutdown protects the output from being overpowered

!

Low output noise for ultra-accurate outputs

!

All solid-state output stages

!
! RoHS compliant
! HALT Tested
! NIST-traceable Certificate of Calibration provided with each unit
! compliant

TREK, INC. • 190 Walnut Street • Lockport, NY 14094 • USA • 800-FOR TREK

(fax) • www.trekinc.com • [e-mail] 716-438-7555 • 716-201-1804

Features

Digital Enable

A BNC connection for a TTL compatible signal
to turn ON/OFF the high voltage output is
provided. TTL high (or open) turns off the HV
output; TTL low turns on the HV output.

Response

A graduated 1-turn panel potentiometer is used
to optimize the AC response for various load
parameters.

High Voltage LED

Front panel red LED illuminates when the high
voltage is on.

Mechanical

Dimensions

85 mm H x 205 mm W 325 mm D
(3.3” H x 8.1” W x 12.8” D)

Weight

2 kg (4.4 lb)

HV Connector

SHV Connector

BNC Connectors

Amplifier Input, Voltage Monitor, Current Monitor,
Digital Enable

Operating Conditions

Temperature

0°C to 40°C (32°F to 104°F)

Relative Humidity

To 85%, noncondensing

Altitude

To 2000 meters (6561.68 ft.)

Electrical

Input Power

90 to 265 V AC, at 50/60 Hz

Output Power

24 V DC, regulated at 1.75A maximum

HV Cable

2 m, 30.8 pF per foot

Supplied Accessories

Operators’ Manual

PN: 23447

AC Adapter

PN: L5215R

HV Output Connector
(SHV Mating
Connector)

PN: 43874R

Optional

Accessories

None

Note

The output cable supplied with this instrument uses a coaxial cable that
has 30.8 pF/ft of capacitance at 1 kHz nominal. This cable capacitance
must be factored in as a portion of the load and will reduce slew rates
and large signal bandwidth. In applications that require maximum
performance it is suggested that the supplied high voltage coaxial cable
be kept as short as possible to reduce capacitance. Another option is
to cut the coaxial cable short and add two break out leads (1 for shield
[ground] and 1 for the center conductor) for the connection to load.

Model 2220 Specifications

Performance

Output Voltage
Range

0 to ±2 kV DC or peak AC

Output Current
Range

0 to ±10 mA DC or ±20 mA peak (for 5 ms
minimum)

Input Voltage Range

0 to ±10 V DC or peak AC

Input Impedance

10 kW, nominal

DC Voltage Gain

200 V/V

DC Voltage Gain
Accuracy

Better than 0.5% of full scale
Offset Voltage

Less than 1 V

Output Noise

Less than 50 mV rms*

Slew Rate
(10% to 90%, typical)

Greater than 100 V/µs

Large Signal
Bandwidth (-3 dB)

DC to greater than 7.5 kHz

Small Signal
Bandwidth (-3dB)

DC to greater than 50 kHz
Settling Time to 1%

Less than 50 µs for 0 to 2 kV step

Internal Capacitance
(HV Output)

300 pF

Automatic Power
Limit

Limits internal power dissipation for protection
from overheating

Stability

Drift with Time

Less than 300 ppm/hr, noncumulative

Drift with Temp

Less than 180 ppm/°C

Voltage Monitor

Noise

5 mV rms

Ratio

1/200th of the high voltage output

Current Monitor

Ratio

0.4 V/mA

DC Offset Adjust

Better than 2% of full scale

*Measured using the true rms feature of the Hewlett Packard Model 34401A digital multimeter

Measurement and Power Solutions

Copyright © 2013 TREK, INC. All specifications are subject to change. 1317/JRB

TM