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 AH501B Picoammeter


<p>AH501 Picoammeter</p>

AH501 Picoammeter

A compact user friendly AH501B Picoammeter covers the whole acquisition, counting and digitization chain. To a great extent this simplifies and streamlines the read out at high speed and with extremely low noise X-ray detectors.
It is composed of a particular transimpedance input stage for current sensing combined with several analogue signal conditioning and filtering stages with state-of-the-art electronics.

Acquisition of samples from the AH501B may be performed using either "continuous" or "on demand" transmission modes:

- "Continuous" mode: data are continuously sampled and transmitted, without external intervention, to the host device, allowing for real time data acquisition
- "On demand" mode: data are sampled and transmitted only on a specific remote command request.

The external TRIGGER/GATE input signal is available for the purpose of synchronizing the acquisition of the picoammeter with external events (i.e. laser triggering). Furthermore, digital samples can be transferred using either the ASCII format or the RAW binary data format for fast data transmission.

The AH501B is available in different configurations: analogue cut-off frequency (the standard value is 1 kHz but it has been successfully tested up to 10 kHz), communication interface (xPiggy) and input connectors (SMA or BNC).
The availability of trigger input and output signals on an RJ11 connector allows for the synchronization of the acquisition to external events.


  • Ultra-Low Current Measurements
  • Beam Position Monitoring
  • Diamond Detectors Readout
  • Ion Chamber Readout