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A1625

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8 Channel 1kV/20mA Individual Floating Channel Board

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Features

  • 8 independently controllable full floating channels
  • 1kV / 20 mA output range
  • 50 mV voltage monitor resolution
  • Current monitor resolution:
    • high range: 1 µA
    • low range: 100 nA
  • Programmable voltage ramp up / down rates
  • Typical voltage ripple smaller than 3 mVpp (1 KHz ÷ 20 MHz)
  • Overcurrent programmable protections
  • Programmable TRIP parameter
  • DB37 connector
  • Current generator operation in overcurrent condition
More info
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Overview

A1625 is a single width board (5TE wide) that houses 8 individual floating channels, delivered through DB37 connector. The output voltage is 0 ÷ 1000 V with 50mV set/monitor resolution. The maximum current value is 20mA with a 1 µA setting resolution.

DB37 connector

Single width (5 TE wide),8 channels (Mod. A1625)

 

 

Consult our connectors reference page for technical information.

The channels share a Individual Floating Channels, which allows on-detector grounding, reducing the noise level. A global enable/disable connector allows to disable the channels. The voltage ramp rates may be set independently for each channel and offer dual current ranges (software selectable).

The output channels offer dual current ranges (software selectable).

High Power 0 ÷ 20 mA I set resolution: 1 µA I mon resolution: 1 µA Max. power: 20W
High Resolution: 0 ÷ 2 mA I set resolution: 1 µA I mon resolution: 100 nA

Independently programmable for each channel:

Output voltage: 0 ÷ 1 kV step: 50 mV
Current limit: 0 ÷ 20 mA step: 1 µA
HV Ramp up/down: 1 ÷ 250 V/sec step: 1 V/sec
TRIP parameter: 0 ÷ 999.9 s; 1000 s = Infinite step: 0.1 s

Safety features allows the module to perform as a current generator and includes:

  • Channels can be enabled or disabled through the Global Interlock logic.
  • Overvoltage and Undervoltage warning when the output voltage differs from the programmed value.
  • Overcurrent detection: when a channel attempts to exceed the programmed current limit, it signaled to be in “overcurrent” and enter in a TRIP status. The output voltage is varied to keep the current below the programmed limit for a programmable TRIP time, then the channel is switched off. If TRIP is set to “constant current mode”, the channel behaves like a current generator.
  • Hardware VMAX: maximum output voltage can be set, via front panel potentiometer, at the same common value for all the board channels. VMAX value can be read out via software.

Technical Specifications

No. of Channels

8 Individual Floating (±50V isolation)

Output Voltage

0 ÷ 1000 V

Max Current

20 mA

Voltage Set Resolution

50 mV

Voltage Monitor Resolution

50 mV

Current Set Resolution

1 µA

Current Monitor Resolution

Low range: 100 nA
High range: 1µA

VMAX hardware

tbd

VMAX software

0÷1000 V settable for each channel

VMAX software resolution

1V

Ramp Up/Down

1÷250 Volt/sec, 1 Volt/sec step

Ripple (@ max load with 10nf)
1 KHz ÷ 20 MHz

maximum: <5 mV pp

typical: <3 mV pp

 10 Hz ÷ 1 KHz

maximum: <10 mV pp

typical: <5 mV pp

 

Voltage Monitor vs Output Voltage Accuracy

typical:  ±0.05 % ±0.2 V
maximum: ±0.05 % ±0.5 V

Voltage Set vs Output Voltage Accuracy

typical:  ±0.05 % ±0.2 V
maximum: ±0.05 % ±0.5 V

Current Monitor vs. Output Current Accuracy

high range typical: ±1 %  ±3 µA
high range maximum: ±1% ±10 µA
low range typical: ±1% ±300 nA
low range maximum: ±1% ±1 µA

Current Set vs. Output Current Accuracy

typical: ±1 % ±3 µA (start 5% Vnom.)
maximum: ±1% ±10 µA (start 5% Vnom.)

Output Connector

DB37 Multipin

Compare

Compare with High Voltage Power Supply.

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Ordering Options

Code Description
WA1625XAAAAA A1625 - individual floating 8 ch 1 kV/ 20 mA (20 W ) board  RoHS
WA1626XAAAAA A1626 - individual floating 16 ch 1 kV/10 mA (10 W ) board  RoHS
WA1625MXAAAA A1625M -SYx527 mixed polarity individual floathing 8 ch 1 kv/ 20 mA (20 W) board  RoHS
WA1625NXAAAA A1625N -SYx527 negative individual floathing 8 ch 1 kv/ 20 mA (20 W) board  RoHS
WA1625PXAAAA A1625P -SYx527 positive individual floathing 8 ch 1 kv/ 20 mA (20 W)  RoHS

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