±500V 1W Low Noise High Precision High Voltage Amplifiers

HA05B2 - high-voltage-amplifier

The precision high voltage amplifier HA05B2 is a standard 19" plug-in unit of 3U / 6HP. The output voltage is -500V to +500V at load current of ±2mA. The control voltage ranges from -10V to +10V and the gain is 50.

The amplifier features high precision, very high stability and low noise, thereby making the unit well suited even for voltage reference applications.

The output voltage is controlled by a control voltage which can be either provided via its nominal value input or set by a 10-turn potentiometer.

Monitor outputs for voltage and current are provided. Furthermore, the unit is equipped with a fast inhibit input effectively clamping the output voltage to 0V.

The output is protected against overload, short circuit and transient overvoltage.

High-Speed versions up to 15kHz bandwidth / 50V/µs slew rate are available on request.

The mainframe HAR12 is available to accommodate up to 12 amplifier plug-in cards.


  • Output ±500V / ±2mA
  • High Precision
  • High Stability
  • Low Noise
  • Remote On / Off
  • Monitor Outputs
  • 19"-Plug-in Unit 3HU / 6HP


  • Electrostatic deflection
  • HV Voltage Reference
  • Testing
  • Ion guidance


Output Voltage: -500V … +500V
Load Current: -2mA … +2mA
Gain: 50 ±0.2%
Temperature Coefficient: 5ppm/K (typ.)
Stability: < ±100ppm
Load Regulation: < 100ppm (no load / full load)
Ripple / Noise: < 10mVPP / < 1mVRMS
Voltage Monitor: -10 … +10V == -500V … +500V ±0.2%
Current Monitor: -10 … +10V == -2mA … +2mA ±0.2%
Inhibit Input: Amplifier On: -15V … +1.5V
Amplifier Off: +2.4V … +15V or open
Inhibit Response Time: Amplifier On->Off: < 10µs
Amplifier Off->On: ca. 2.5ms
Supply Voltage +24V: +20 … +28VDC, < 100mA
Supply Voltage +540V: +530 … +550VDC, < 4mA
Supply Voltage -540V: -530 … -550VDC, < 4mA
Power Bandwidth: > 500Hz
Slew Rate: > 2V/µs
Operating Temp.: 0°C … +40°C


The information given here is technical data, not assured product characteristics. It has been carefully checked and is believed to be accurate; however, no responsibility is assumed for inaccuracies. The user has to ensure by adequate tests that the product is suitable for his application regarding safety and technical aspects.
hivolt.de GmbH & Co. KG does not assume any liability arising out of the application or use of any product described.

Safety Advice

Design, installation and inspection of machinery and devices carrying high voltage require accordingly trained and qualified personnel. Appropriate safety rules and directives must be complied with.
Improper handling of high voltage can mean severe injuries or death and may cause serious collateral damage!