Drivers for Attenuators VCVA Series

ELVA-1 offers a driver series for control of Solid-State electrical controlled attenuators.

Analog Linear Driver, Part No. ADL-10/100 

 This driver converts 0 –  +10 V input volts to 0 – +100 mA biasing current for feeding the attenuator. 


Input signal:                                 0..+10 V;Output current:                             0…100 mA; 

Power supply:                               +/-12 V DC 120 mA(max); 

Control Input/Output connectors:     SMA female.

Analog Linear Driver with fast switching mode, Part No. ADLFM-10/100

This driver provides two modes of operation: ‘slow mode’ and ‘fast mode’. In ‘slow mode’, the driver operates as a linear voltage to the current converter and converts the 0… +10 V input voltage range to 0 … +100 mA output current. The second mode allows the use of VCVA as an “on/off” fast modulator. In “fast mode” the driver applies a short negative voltage pulse to accelerate the fall time. The typical Response Function of the attenuation for VCVA is shown in the plot below. 

Specifications for slow mode

Input signal:                                   0..+10 V;

Output current:                               0…100 mA; 

Power supply:                                 +/-12 V DC 120 mA(max);

 Control Input/Output connectors:      SMA female.  


 Attenuation response function for ‘slow’ and ‘fast’ modes


GPIB Driver, Part No. GPDVC-15/100

This driver can operate via the GPIB interface. The user should send 12-bit code for setting the desired attenuation. The driver converts the sent code in biasing current in the 0-100 mA range.
Download GPDVC-15/100 manual for more detail. 


Input range:                            12 bits; 

Output current:                        0…100 mA;

Power supply:                          100-240 V AC;

Control Output connectors:        SMA female.


Digital Drivers

Upon request, Elva-1 can design a driver with any digital interface.