The A1422E/F series are charge sensitive preamplifiers packaged in a 2/4 channels box. The sensitivity is 200 mV/MeV.
It is suited for silicon detectors with wide surface and high capacitance, used for nuclear and subnuclear physics experiments, where very low noise, fast response and high counting rates are required. The modules accept both positive and negative input charge pulses and provide an energy output of ±4.5 V range on 50 Ω termination (±10 V on 1 kΩ). Moreover, a test input accepts positive and negative signals for calibration purposes.
The A1422E/F is implemented into alloy boxes and feature SHV connectors for HV/IN, SMA connectors for DET/IN, TEST IN and E OUT and D-type 9 pin male connector for the power supply.
| TEST connector A1422E: Amphenol RF 901-9889-RFX A1422F: Würth Elektronik 60312242114510 |
SMA connector (IN) A1422E: Amphenol RF 901-9889-RFX A1422F: Adam Tech RF2-49B-T-00-50-G-HDW |
SMA connector (OUT) A1422E: Amphenol RF 901-9889-RFX A1422F: Würth Elektronik 60312242114510 |
Consult our connectors reference page for technical information.
A customization is available to improve amplifier protection from transients at detector input connection.
Fast, low noise inverting preamplifier
Gain 200 mV/MeV (Si equivalent)
Positive or negative input signals
2 or 4 input channels
Up to 700V (positive or negative) detector bias voltage
Low noise input stage composed JFETs diode protected