BROADBAND LINEAR AMPLIFIER Model A600

ELECTRONICS AB
WWW.FLCE.SE
BROADBAND LINEAR AMPLIFIER
Model A600
HIGH VOLTAGE FIXED GAIN BROADBAND
600 Vpp 75 mA 100x DC to ca 250 kHz
FULL SCALE
LOW OUTPUT IMPEDANCE HIGH SLEW RATE
<0.1 Ω 300 V/µs
FLC Electronics AB
Sippedalsvägen 8
S - 433 31 Partille, Sweden
Tel. +46 31 741 2631
Fax +46 31 44 61 10
Fax +46 31 41 75 30
VAT No. SE556506606401
Email flce@flce.se
Web http://flce.se
ELECTRONICS AB
WWW.FLCE.SE
G E N E R A L D E S C R I P T I O N
The A600 is a general purpose linear amplifier designed for laboratory use. It is based on
a fast high-voltage operational amplifier with a feedback network chosen to give a voltage
amplification of 100 times. Any function or arbitrary waveform generator with low
output impedance and output voltage up to ±10 V can be used as an input device.
The amplifier outputs high voltage signals at high frequency. It is, thus, imperative for the
safe operation that the user understands the possibilities and limitations of the
instrument. Isolated BNC output connector is used to comply with safety requirements.
I N P U T A M P L I T U D E
The amplitude of the input signal should normally be kept within ±3 V. The input
protection network limits the signal amplitude delivered to the power amplifier to a safe
value. It also effectively cuts accidental spikes and overshoots. However, large and
prolonged overvoltage at the input may blow the microfuse in the input protection circuit.
Kee p input signals within ±3 V range.
N eve r c onnec t a ny hig h volta ge output to a ny input or output of the
instr ument!
TROUBLESHOOTING
Problem
Condi=on
Solu=on
No output
Power switch does not lit
Check the mains fuse
located on the back
No output or very small,
distorted signal
Power switch OK
Check the input microfuse
located inside the device.
Constant high voltage
output
Without any input signal
Amplifier failure.
Contact flce@flce.se
You should suspect a blown input microfuse if the output is about zero or the amplifier is
producing a very low voltage, distorted copy of the input signal (due to the capacitive
coupling through the blown fuse).
A600
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ELECTRONICS AB
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Spare microfuses are provided inside the instrument. They look like small metal cans and
are placed in white holders. The resistance of a good fuse is in the order of 46 ohm. It is
imperative to disconnect the power cable and wait at least a minute before opening the
case. If possible, contact info@flce.se for advice.
LOAD
The amplifier is intended to drive resistive and/or small capacitive loads. The maximum
capacitive load depends on the slew rate of the amplifier. The slew rate is normally set at
the factory to 300 V/µs which is appropriate for a small load (for example 5 kΩ in series
with 100 pF). Due to the output current limit (75 mA) the slew rate at higher load of
300 pF drops to ca 200 V/µs rising edge and ca 130 V/µs falling edge. This load includes
the capacitance of the connection cable (ca 100 pF/m for a standard coaxial cable).
Increasing the capacitive load causes overshoot to appear. If a larger capacitive load is
required, and the overshoot is not acceptable, then the slew should be reduced
accordingly. Such an adjustment may be performed by qualified personnel and the
factory should be contacted for advice (preferably by email info@flce.se). Inside the
cabinet exist hazardous voltage levels and the amplifier circuit is sensitive to static
discharge.
FLC Electronics AB recommends to monitor the output signal of the amplifier with an
oscilloscope. It is then important to use a low capacitive probe with a division factor of at
least 1/100 (please note also the maximum voltage that can be connected to the
oscilloscope input and that can be handled by the probe).
The amplifier cannot be used to drive an inductive load.
The continuous output current limit is 75 mA and the output power limit is 30 W. The
output is equipped with a current limiting circuit that withstands accidental short-circuits.
Prolonged short-circuiting may result in overheating the amplifier.
O ve r l o a d i n g t h e o u t p u t m ay c a u s e a n ove r s h o o t w h i c h m i g h t b e
d a n ge ro u s f o r co n n ect ed d evic e s.
The amplifier may be overheated when the output is shor t-circuited for a
l o n g t i m e.
A600
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ELECTRONICS AB
WWW.FLCE.SE
F R E Q U E N C Y R E S P O N S E
Frequency*[kHz]*
1"
10"
100"
1000"
1"
10"
100"
1000"
Load"300pF"
5kΩ+100pF"
10000"
The graph below shows full-scale frequency response of A600 with small load (5 kΩ in
series with 100 pF, red circles) and with 300 pF pure capacitive load (blue squares):
Amplitude*peak-to-peak*[V]*
A600
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ELECTRONICS AB
WWW.FLCE.SE
S U M M A R Y O F T E C H N I C A L D A T A
Bandwidth:
Amplification:
Load:
type
Impedance:
input
output
Voltage:
input
Current:
output
Slew Rate:
output
Input protection fuse
Operating Ambient Temperature:
Storage Temperature:
Relative Humidity:
Power Requirements:
Fuse:
Dimensions (H/W/L):
Weight:
Country of Origin:
DC to about 250 kHz at 600 Vpp
100 times
resistive || capacitive
1 MΩ || 30 pF, custom values possible
<0.1 Ω in the linear mode
nominal ±3 V
maximum 75 mA
ca 300 V/µs without load
(different adjustments available on request)
15 mA (Littelfuse, part number 272.015)
one spare fuse provided inside the instrument,
additional fuses available from Littelfuse
resellers or from FLC Electronics AB.
0°C to 30°C
0°C to 60°C
up to 90% (operation)
30% to 50% (storage)
100/110 V or 220/230 V, 50/60 Hz
100/110 V: 3.15 A (slow),
220/230 V: 2 A (slow)
112 x 255 x 316 (mm)
4 kg
Sweden
N ot e: Specifications apply to instruments operating at 23°C±5°C ambient temperature
after 15 min. warm-up time. Due to ongoing product development, specifications are
subject to change without notice.
WARNING It is not allowed to connect the 100...230V AC line power input of the
amplifier to DC-AC converters or solid state AC generators with non-sinusoidal output.
Data sheet revision date: 30 May, 2013
A600
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ELECTRONICS AB
WWW.FLCE.SE
WARRANTY
F LC E l ect r o n i cs wa r r a n t s that this produc t will be fre e from de fe c t s i n
m a t e r i a l s a n d wo r k m a n s h i p f o r a p e r i o d o f two years from the da te of
the shipment.
If any such product proves defective during this warranty period, FLC Electronics, at its
option, either will repair the defective product without charge for parts and labour, or will
provide a replacement for the defective product. In order to obtain service under this
warranty, Customer must notify FLC Electronics of the defect before the expiration of
the warranty period and make suitable arrangements for the performance of the service.
Customer shall be responsible for packing and shipping the defective product to the
service center designed by FLC Electronics, with shipping charges prepaid. FLC
Electronics shall pay for the return of the product to the Customer if the shipment is to a
location within the country in which the FLC Electronics service center is located.
Customer shall be responsible for paying all shipping charges, duties, taxes, and any other
charges for products returned to any other locations.
This warranty shall not apply to any defect, failure or damage caused by improper use or
inadequate maintenance and care. FLC Electronics shall not be obligated to furnish
service under this warranty:
• to repair damage resulting from attempts by personnel other than FLC Electronics
representatives to install, repair or service the product;
• to repair damage resulting from improper use or connection to incompatible
equipment;
• to service a product that has been modified or integrated with other products when the
effect of such modification or integration increases the time or difficulty of servicing
the product.
This warranty is given by the FLC Electronics with respect to this product in lieu of any
other warranties, expressed or implied. FLC Electronics and its vendors disclaim any
implied warranties of merchantability or fitness for a particular purpose. FLC
Electronics’ responsibility to repair or replace defective products is sole and exclusive
remedy provided to the customer for breach of this warranty. FLC Electronics and its
vendors will not be liable for any indirect, special, advance notice of the possibility of
such damages.
The instrument may generate hazardous voltage levels! It should be operated by qualified
personnel only. The instrument is to be used in normal room temperature and humidity.
The manufacturer cannot be held responsible for damage to any device connected to the
instrument. It is recommended that samples or equipment sensitive to voltage spikes are
disconnected from the high-voltage outputs when turning the power to the instrument
ON or OFF.
A600
page 5
ELECTRONICS AB
WWW.FLCE.SE
I M P O R T A N T
Inside the amplifier case exist dangerous voltage levels.
The amplifier cannot be used to drive an inductive load.
The instrument cannot be powered from a DC-AC converter
nor from a solid-state AC generator with non-sinusoidal
output.
Loads sensitive to voltage transients should be disconnected
from the amplifier during power-up and power-down.
Never connect the output to the input of the amplifier!
The amplifier may be overheated if the output is shortcircuited for a long time.
It is recommended to monitor the output signal of the
amplifier on the oscilloscope.
A600
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ELECTRONICS AB
WWW.FLCE.SE
E C D e c l a r a t i o n o f C o n f o r m i t y
We
FLC Electronics AB
Sippedalsvägen 8
SE-43331 Partille
Sweden
declare under sole responsibility that the
Voltage Amplifier A600
meets the intent of Directive 89/336/EEC for Electromagnetic Compatibility (EMC) and
Low Voltage Directive 73/23/EEC (LVD). Compliance was demonstrated to the
following standards as listed in the official Journal of the European Communities:
EN 50081-1
EN 55022
EN 55022
Generic Emissions
Conducted emission (interference voltage), class B
Radiated emission (electric field), class B
EN 50082-1
EN 61000-4-4
EN 61000-4-2
EN 61000-4-3
Generic Immunity
Electrical fast transient/burst
Electrostatic discharge
Radiated E-fields (radio frequency)
EN 61010-1:2001
Electrical Safety
Tomasz Matuszczyk, PhD
Technical Director
FLC Electronics AB
June 04, 2007
A600
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