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1 Ch 2.6 kV/500 µA Digital Controlled Power Supply Module


  • Single Desktop HV channel
  • 0 ÷ 2.6 kV output voltage
  • 500 μA maximum output current
  • Available with positive or negative polarity
  • SHV output connector
  • Compact package: 63x36x170 mm3 (WxHxL)
  • 100 mV voltage monitor resolution
  • 10 nA current monitor resolution
  • Digital output voltage control
  • Internal memory for permanent storage of calibration and configuration
  • RS485 digital control (allows to build daisy chain network of A75xxDB modules)
  • Interlock logic for Module enable
  • SMART HV command interface


The A7526DB Power Supply Module is a compact desktop solution to provide stable and noiseless power supply for several kinds of detectors.

The module houses a digital controlled high voltage channel that provides a 2.6 kV maximum voltage with 100 mV monitor resolution The maximum output current is 500 μA, with 10 nA monitor resolution. It is available with either positive or negative output voltage. HV output is delivered through SHV connector.

The following channel parameters can be programmed

  • Output voltage: 0 ÷ 2.6 kV step: 100 mV
  • Current limit 0 ÷ 500 μA step: 100 nA
  • Voltage Ramp up/down: 1 ÷ 500 V/sec step: 1 V/sec
  • TRIP parameter

Power supply control can be performed remotely, via RS485, that allows to build a daisy chain network of A75xxDB modules.

Safety features include:

  • Overcurrent detection: if the channel attempts to draw a current larger than Iset, the output voltage is automatically adjusted to keep the current below Iset limit. Under this condition, the channel behaves as a current generator.
  • The Module can be enabled or disabled through the interlock logic.

Technical Specifications


Custom Carrier

Output Connector


COMM connector

15 Pin Male HD-Sub Connector VGA 5749768-1

Operating temperature

-35° C ÷ +75° C

Storage temperature

-55° C ÷ +85° C

Voltage Supply (Vin)

+12 V ± 10%

Output Voltage (Vout)

0 ÷ 2600 V

Output polarity


Maximum Output Current (Iout)

500μA @ ± 2600 V

VSet Resolution

100 mV

VMon Resolution

100 mV

Current Set Resolution

100 nA

Current Monitor Resolution

10 nA

Power requirement

1.5W @ 2000 V (Rload ≈ 6 MΩ)

Output Ripple

Typical 5mVpp; Maximum 10mVpp

VMon vs. VOut Accuracy

typical: ± 0.3% ± 0.2 V max: ± 0.3% ± 1 V

VSet vs. VMon Accuracy

typical: ± 0.3% ± 0.2 V max: ± 0.3% ± 1 V

IMon vs. IOut Accuracy

2% ±5 µA ±50ppm/°C with output current from 10% to 100% f.s.

Vout vs. Vset Integral Non Linearity

<±0.03% (-35° C ÷ +75° C)

Electromagnetic compatibility

Weak emission of electromagnetic impulse and RF; one- piece metal shielding with several ground connections

Uniformity of a lot

< 0.5 %


Over current short circuit, sparks and humidity


Compare with Stand alone Units.


Ordering Options

Code Description
WA7526DNBAAA A7526DNB -2.6kV 500µA Digital Interface HV Power Supply Module BOXED  RoHS
WA7526DPBAAA A7526DPB +2.6kV 500µA Digital Interface HV Power Supply Module BOXED  RoHS