A1422
Low Noise Fast Rise Time Charge Sensitive Preamplifiers (Boxed)
Features
- Fast, low noise inverting preamplifier
- Four available sensitivities (Si equivalent):
- 1 mV/MeV – COMING SOON
- 5 mV/MeV
- 45 mV/MeV
- 90 mV/MeV
- 400 mV/MeV
- 450 mV/MeV
- Up to 1000 pF detector capacitance supported
- 1, 4 and 8 channel model available
- Up to 2 kV (positive or negative) detector bias voltage
Overview
The CAEN A1422 series are charge sensitive preamplifiers packaged in a 1/4/8 channels box. Various sensitivity values are available and various detectors capacitances are supported:
- F2 type: up to 200 pF; sensitivity: 5, 45, 90, 400, 450 mV/MeV(Si)
- F3 type: up to 1000 pF; sensitivity: 5, 45, 90 mV/MeV(Si) – COMING SOON: 1 mV/MeV
The Preamplifiers are available also as 15 pin single-in-line packaged module (see Mod. A1422H).
Two version of A1422H modules are available:
- Hybrid version (discontinued)
- PCB version (NEW)
All of them can be used in 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 ±3.5 V / ±4 V (Hybrid / PCB) range on 50 Ω termination (±8 V / ±10 V on 1 kΩ). Moreover, a test input accepts positive and negative signals for calibration purposes.
The hybrid preamplifiers are realized using a Cold Discharge Mechanism: this allows to have a low decay time value maintaining a very high feed resistance value. This technique provides good performances minimizing the pile-up in presence of moderate high counting rates.
The A1422 are implemented into alloy boxes and feature SHV connectors for the IN/DETECTOR and HV BIAS signals, LEMO connectors for the TEST IN and ENERGY OUT and a cable with a D-type 9 pin male connector for the power supply.
A customization is available to improve amplifier protection from transients at detector input connection.
A1422 models can be powered using the following devices:
- Amplifier N968 (via a D-type female connector on the rear panel)
- DT5423 – Quad Linear Desktop Power Distributor for Preamplifiers and Digitizer
- N5424 – Quad NIM Power Distributor for Preamplifiers
- V5425 – Quad VME Power Distributor for Preamplifiers
Here you can find the link at the “MIRACLES detector prototypes and front-end electronics: integration, tests and some lessons learned” presented in DENIM (Design and Engineering of Neutron Instruments Meeting) on September 2023 at Forschungszentrum Jülich in Germany.
Technical Specifications
- No. Of Channels
1 / 4 / 8
- Packaging
Alloy Box; Dimensions (WxHxD connector included):
- A1422Axxxx (1 ch): 40.0 x 30.0 x 124 mm3
- A1422Bxxxx (4 ch): 100.0 x 50.0 x 162 mm3
- A1422Cxxxx (8 ch): 100.0 x 50.0 x 162 mm3
- Detector In
Accepts positive and negative input charge pulses from semiconductor detectors and supplies the HV bias to the detector itself;
SHV connector
- HV Input
Up to 2 kV (positive or negative); 100 MΩ resistance in series;
SHV connector (BNC on request)
- Test Input
Positive or negative input for the energy calibration via Ctest= 1 pF or 10 pF (on 5 mV/MeV versions);
LEMO-00 connector
- Output
Hybrid: ± 8V max. (open circuit), 50 Ω back termination.
PCB: ± 10V max. (open circuit), 50 Ω back termination.
- Rise Time - Hybrid version (test input rise time = 1.6 ns)
- Model
F2 – 5 mV/MeV
F2 – 45 mV/MeV
F2 – 90 mV/MeV
F2 – 400 mV/MeV0 pF
< 10 ns
< 10 ns
< 10 ns
< 35 ns200 pF
< 20 ns
< 35 ns
< 75 ns
< 110 nsModel
F3 – 5 mV/MeV
F3 – 45 mV/MeV
F3 – 90 mV/MeV390 pF
< 20 ns
< 45 ns
< 100 ns1000 pF
< 35 ns
< 90 ns
< 220 ns
- Rise Time - PCB version (test input rise time = 1.6 ns)
- Model
F2 – 5 mV/MeV
F2 – 45 mV/MeV
F2 – 90 mV/MeV
F2 – 400 mV/MeV
F2 – 450 mV/MeV0 pF
< 5 ns
< 5 ns
< 10 ns
< 70 ns
< 70 ns200 pF
< 15 ns
< 15 ns
< 25 ns
< 110 ns
< 110 nsModel
F3 – 5 mV/MeV
F3 – 45 mV/MeV
F3 – 90 mV/MeV390 pF
< 20 ns
< 25 ns
< 45 ns1000 pF
< 40 ns
< 50 ns
< 100 ns
- Maximum Noise - Hybrid version
- Model
F2 – 5 mV/MeV
F2 – 45 mV/MeV
F2 – 90 mV/MeV
F2 – 400 mV/MeV0 pF
< 6.6 keV
< 1.9 keV
< 1.8 keV
< 2.0 keV200 pF
< 9.7 keV
< 4.3 keV
< 4.3 keV
< 3.6 keVModel
F3 – 5 mV/MeV
F3 – 45 mV/MeV
F3 – 90 mV/MeV390 pF
< 10.6 keV
< 6.5 keV
< 5.9 keV1000 pF
< 15.2 keV
< 11.5 keV
< 11.3 keV
- Maximum Noise - PCB version
- Model
F2 – 5 mV/MeV
F2 – 45 mV/MeV
F2 – 90 mV/MeV
F2 – 400 mV/MeV
F2 – 450 mV/MeV0 pF
< 4.7 keV
< 2.2 keV
< 2.2 keV
< 2.2 keV
< 2.2 keV200 pF
< 7.6 keV
< 4.3 keV
< 4.2 keV
< 4.1 keV
< 4.1 keVModel
F3 – 5 mV/MeV
F3 – 45 mV/MeV
F3 – 90 mV/MeV390 pF
< 10.5 keV
< 5.8 keV
< 5.5 keV1000 pF
< 21.5 keV
< 13.2 keV
< 13.2 keV
- Integral non linearity
Hybrid: <± 0.05% (0 ÷ ±8 V 1 kΩ termination)
PCB: <± 0.05% (0 ÷ ±10 V 1 kΩ termination)
- Energy sensitivity
5/45/90/400/450 mV/MeV
- Power requirements - Hybrid version
- Model
A1422AxxxF2 (1 ch):
A1422BxxxF2 (4 ch):
A1422CxxxF2 (8 ch):+12 V
14 mA
55 mA
105 mA-12 V
6 mA
25 mA
50 mAModel
A1422AxxxF3 (1 ch):
A1422BxxxF3 (4 ch):
A1422CxxxF3 (8 ch):+12 V
24 mA
80 mA
160 mA-12 V
6 mA
25 mA
50 mA
- Power requirements - PCB version
- Model
A1422AxxxF2 (1 ch):
A1422BxxxF2 (4 ch):
A1422CxxxF2 (8 ch):+12 V
12 mA
48 mA
96 mA-12 V
4 mA
16 mA
32 mAModel
A1422AxxxF3 (1 ch):
A1422BxxxF3 (4 ch):
A1422CxxxF3 (8 ch):+12 V
20 mA
80 mA
160 mA-12 V
4 mA
16 mA
32 mA
Compare
Compare with Charge Sensitive Preamplifiers.
Loading...
Ordering Options
| Code | Description |
|---|---|
| WA1422A005F2 | A1422A005F2 - 1 Ch. Charge Preamplifier, 5mV/MeVgain, Cdet<200pF RoHS |
| WA1422A005F3 | A1422A005F3 - 1 Ch. Charge Preamplifier, 5mV/MeVgain, Cdet<1000pF RoHS |
| WA1422A045F2 | A1422A045F2 - 1 Ch. Charge Preamplifier, 45mV/MeVgain, Cdet<200pF RoHS |
| WA1422A045F3 | A1422A045F3 - 1 Ch. Charge Preamplifier, 45mV/MeVgain, Cdet<1000pF RoHS |
| WA1422A090F2 | A1422A090F2 - 1 Ch. Charge Preamplifier, 90mV/MeVgain, Cdet<200pF RoHS |
| WA1422A090F3 | A1422A090F3 - 1 Ch. Charge Preamplifier, 90mV/MeVgain, Cdet<1000pF RoHS |
| WA1422A400F2 | A1422A400F2 - 1 Ch. Charge Preamplifier, 400mV/MeVgain, cdet<200pF RoHS |
| WA1422B005F2 | A1422B005F2 - 4 Ch. Charge Preamplifier, 5mV/MeVgain, Cdet<200pF RoHS |
| WA1422B005F3 | A1422B005F3 - 4 Ch. Charge Preamplifier, 5mV/MeVgain, Cdet<1000pF RoHS |
| WA1422B045F2 | A1422B045F2 - 4 Ch. Charge Preamplifier, 45mV/MeVgain, Cdet<200pF RoHS |
| WA1422B045F3 | A1422B045F3 - 4 Ch. Charge Preamplifier, 45mV/MeVgain, Cdet<1000pF RoHS |
| WA1422B090F2 | A1422B090F2 - 4 Ch. Charge Preamplifier, 90mV/MeVgain, Cdet<200pF RoHS |
| WA1422B090F3 | A1422B090F3 - 4 Ch. Charge Preamplifier, 90mV/MeVgain, Cdet<1000pF RoHS |
| WA1422B400F2 | A1422B400F2 - 4 Ch. Charge Preamplifier, 400mV/MeVgain, Cdet<200pF RoHS |
| WA1422C005F2 | A1422C005F2 - 8 Ch. Charge Preamplifier, 5mV/MeVgain, Cdet<200pF RoHS |
| WA1422C005F3 | A1422C005F3 - 8 Ch. Charge Preamplifier, 5mV/MeVgain, Cdet<1000pF RoHS |
| WA1422C045F2 | A1422C045F2 - 8 Ch. Charge Preamplifier, 45mV/MeVgain, Cdet<200pF RoHS |
| WA1422C045F3 | A1422C045F3 - 8 Ch. Charge Preamplifier, 45mV/MeVgain, Cdet<1000pF RoHS |
| WA1422C090F2 | A1422C090F2 - 8 Ch. Charge Preamplifier, 90mV/MeVgain, Cdet<200pF RoHS |
| WA1422C090F3 | A1422C090F3 - 8 Ch. Charge Preamplifier, 90mV/MeVgain, Cdet<1000pF RoHS |
| WA1422C400F2 | A1422C400F2 - 8 Ch. Charge Preamplifier, 400mV/MeVgain, Cdet<200pF RoHS |
| WPERS0142201 | A1422A 1 Ch Preamplifier Personalization for Improved Input ESD Protection RoHS |
| WPERS0142204 | A1422B 4 Ch Preamplifier Personalization for Improved Input ESD Protection RoHS |
| WPERS0142208 | A1422C 8 Ch Preamplifier Personalization for Improved Input ESD Protection RoHS |
| WA1422A001F3 | A1422A001F3 - 1 Ch. Charge Preamplifier, 1mV/MeVgain, Cdet<1000pF RoHS |
| WA1422B001F3 | A1422B001F3 - 4 Ch. Charge Preamplifier, 1mV/MeVgain, Cdet<1000pF RoHS |
| WA1422C001F3 | A1422C001F3 - 8 Ch. Charge Preamplifier, 1mV/MeVgain, Cdet<1000pF RoHS |
| WA1422A450F2 | A1422A450F2 - 1 Ch. Charge Preamplifier, 450mV/MeVgain, cdet<200pF RoHS |
| WA1422B450F2 | A1422B450F2 - 4 Ch. Charge Preamplifier, 450mV/MeVgain, cdet<200pF RoHS |
| WA1422C450F2 | A1422C450F2 - 8 Ch. Charge Preamplifier, 450mV/MeVgain, cdet<200pF RoHS |