A1422C/D
Low Noise Fast Rise Time Charge Sensitive Preamplifier
Features
- Fast, low noise inverting preamplifier
- Gain 5 mV/MeV (Si equivalent)
- Positive or negative input signals
- 8 input channels
- Up to 200 pF detector capacitance supported
- Up to 2000 V (positive or negative) detector bias voltage
- Low noise input stage composed JFETs diode protected
Overview
The CAEN Mod.A1422C/D is a 5 mV/MeV 8-channel preamplifier implemented into an alloy box and features SHV connectors for the DET/IN and HV/IN signals, 2 RJ45 for the differential outputs, LEMO connectors for the TEST IN and COM OUT and a cable with a D-type 9 pin male connector for the power supply. The module accepts both positive and negative input charge pulses and provide a differential output of ±5V max on 1 kΩ termination, and ±2.5V on 100 Ω back termination. A test input accepts positive and negative signals for calibration purposes. Moreover the sum of the 8 energy outputs, with 1 µs decay time, is available on the COM OUT output.
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LEMO connector
Double width, 8 channels (Mod. A1422C/D) |
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SHV connector
HV coaxial connector for A1422C/D |
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D-SUB 9 connector
9 pin male connector for A1422C/D |
Consult our connectors reference page for technical information.
A customization is available to improve amplifier protection from transients at detector input connection.
Technical Specifications
- No. of Channels
A1422CDxxx: 8-channels
- Packaging
- Alloy Box;
- Dimensions WxHxD connector included: 100.0 x 50.0 x 162 mm3
- Charge Sensitivity
5 mV/MeV (Si)
- Recommended Range of Input Capacitance
F2: up to 200 pF
- Output Linear Range
- ±5 V 1 kΩ termination
- ±2.5 V 100 Ω termination
- COM Output Linear Range
±5 V 50 Ω termination
- Open Loop Gain
5 mV/Mev (F2 ) >1*10 5
- E2CRP Maximum energy-squared count-rate product
E2CRP: 1.57*1010 MeV2/s
- Energy Sensitivity
5 mV/MeV (Si)
- Decay Time
5 mV/MeV(Si) 50µs
- Integral non Linearity
<± 0.05% (0 ÷ ±10 V 1 kΩ termination)
- Temperature Instability
< ±100 ppm/°C (0 to 50°C)
- Noise FWHM keV (Si)
- Model: F2 -5V/MeV
- Detector 0 pF: < 4.7 ns
- Capacitance 200 pF: < 7.6
- Rise Time
- Model: F2 -5V/MeV
- Detector 0pF: < 5
- Capacitance 200 pF: <15
- Detector Bias Voltage
±2000 V max
Compare
Compare with Charge Sensitive Preamplifiers.
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Ordering Options
| Code | Description |
|---|---|
| WA1422CD05F2 | A1422CD05F2 - 8 Ch. Charge Preamplifier, 5mV/MeVgain, Cdet<200pF with differential outpus RoHS |
