Reliant EMC

Linear Amplifiers

dla series of Linear Amplifiers



Mains Input
115 or 230 or 400 Vac ± 10% 50-60 Hz
Line regulation
better than 50 ppm of rated output V max for the allowed input variation
Load regulation for constant V
from no load to full load better than 50 ppm of rated output V
Load regulation for constant I
better than 100 ppm of I max from “0” to V max .
Overload Protection (OL)
Overload alarm in case of current output exceeding rated current with “OL” led
Short circuit Protection
Electronic controlled which immediately disable the output
Display “LCD”
Displays the peak values
Remote programming and feed-back (GPAC)
Opto-insulated analog signal 0÷10Vdc
Linearity better than 0.3% Drift better than 1.5mV/°C
after 20 minutes of preheating, better than 2 mV/°C for 24
Hours at 25°C
Temperature coefficient
lower 50 ppm/°C in “voltage mode”;
lower 100 ppm/°C in “current mode”
Ambient temperature
work 0÷40°C
storage -10÷75°C
forced air

DANA Linear Amplifier
DANA Linear Amplifier - DLA Series


Output Voltage
Adjustable by keyboard from zero up to max rated voltage with resolution of 0,1 V (f.s. of 50V) and 1V (f.s. over 50V). Through remote command GPAC, it has a resolution of 0,01V
Output Current
Adjustable by keyboard from zero up to max rated current with resolution of 0,1A with f.s. of 10A and of 1A with f.s. over 10A. With GPAC, it has resolution of 0,01A
Output Frequency
Adjustable by keyboard from 0 up to 400 Hz (if you set “000” is available the DC output)
Special frequency 16.66 Hz
It is adjustable by code n° “1000”
Distortion in AC mode
better than 0,5%
Ripple and noise (DC)
lower 10 ppm (rms) of rated output V, measured in V mode


Output Voltage
It can be programmed through external signal by BNC connector “EXT GEN” up to max rated voltage value
Output Current
It can be programmed through external signal by BNC connector “EXT GEN” up to the max rated current value
Output Frequency
see SLEW RATE diagram
With AC output: 0,3% more than distortion of external generator
Ripple and noise (DC)
With DC output: 50 ppm of the rated Voltage more than max ripple of external generator


Stand-by push button. It works for generator section and for amplifier section with a status LED for each one
To select the amplifier working mode (current amplifier –
voltage amplifier). The selection is indicated by the LED lit.
push-button available for any additional functions on customer’s request. This command is repeated on the connector located on back panel and a LED shows the push button state
To select the working “Mode” as generator press on “Local” and GPAC – RS232 or as amplifier using EXT GEN function.
All functions are shown by switch-on of their “LED”
EXT. GEN – IN (BNC) Connector
Signal input (± 10 Vp) to be amplified within the limits of rated date – opto-insulated connector
Monitoring output connector 0 – 10 V
Output plugs to use up to 5A of current
Show the set values when the DLS is on stand-by
Numerical Keyboard
Parameter output’s configuration in generator mode


DIN Plug
For mains input 230 Vac up to 1200 VA; in alternative cable for 3-phase mains input
GPAC Connector
With signals 0 ÷ 10 V you can manage the remote mode or the output voltage and current regulation and by a TTL signal (0 / 5 V) ON condition or stand-by. It provides V and I feedback through 0 ÷
10 V signal.
All available signals are opto-insulated.
Connector X – Y:
It allows command duplication that it can be activated by push buttons X and Y allowing use by remote mode
Digital interface connectors
Output Plugs
They are available in models with output current over 6 A
DANA Linear Amplifier Output Values of different configuration
DANA Linear Amplifier - DLA Series Output Values of different configurations


DANA Linear Amplifier Output Values of different configurations 2
DANA Linear Amplifier - DLA Series Output Values of different configurations

DANA Linear Amplifier Slew Rate Limitation Bandwith
DANA Linear Amplifier - DLA Series Slew Rate Limitation Bandwidth

General Features

The linear amplifier for industrial purposes “DLA” is a very versatile device since it can amplify signals ranging from +10 V to –10V with a reaction time up to 8 V/µs on output. Featuring a voltage limiter and a current limiter, it can work both as current amplifier and as voltage amplifier. Application range is wide, including to amplify noises to be superimposed on EUT in order to evaluate their immunity against some mains noises.
For this purpose we show some diagrams being feasible with our amplifier as application examples.
DANA Linear Amplifier application waveform charts



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