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Low Noise Fast Rise Time Charge Sensitive Preamplifiers (Boxed)

A1422

Home Modular Pulse Processing ElectronicsPreamplifiersPreamplifiers - Charge Sensitive A1422

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.

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.

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

Ordering Options

Code Description
WA1422A001F3

A1422A001F3 – 1 Ch. Charge Preamplifier, 1mV/MeVgain, Cdet<1000pF

 

(In production)

 RoHS
WA1422A005F2

A1422A005F2 – 1 Ch. Charge Preamplifier, 5mV/MeVgain, Cdet<200pF

 

(In production)

 RoHS
WA1422A005F3

A1422A005F3 – 1 Ch. Charge Preamplifier, 5mV/MeVgain, Cdet<1000pF

 

(In production)

 RoHS
WA1422A045F2

A1422A045F2 – 1 Ch. Charge Preamplifier, 45mV/MeVgain, Cdet<200pF

 

(In production)

 RoHS
WA1422A045F3

A1422A045F3 – 1 Ch. Charge Preamplifier, 45mV/MeVgain, Cdet<1000pF

 

(In production)

 RoHS
WA1422A090F2

A1422A090F2 – 1 Ch. Charge Preamplifier, 90mV/MeVgain, Cdet<200pF

 

(In production)

 RoHS
WA1422A090F3

A1422A090F3 – 1 Ch. Charge Preamplifier, 90mV/MeVgain, Cdet<1000pF

 

(In production)

 RoHS
WA1422A400F2

A1422A400F2 – 1 Ch. Charge Preamplifier, 400mV/MeVgain, cdet<200pF

 

(In production)

 RoHS
WA1422A450F2

A1422A450F2 – 1 Ch. Charge Preamplifier, 450mV/MeVgain, cdet<200pF

 

(In production)

 RoHS
WA1422B001F3

A1422B001F3 – 4 Ch. Charge Preamplifier, 1mV/MeVgain, Cdet<1000pF

 

(In production)

 RoHS
WA1422B005F2

A1422B005F2 – 4 Ch. Charge Preamplifier, 5mV/MeVgain, Cdet<200pF

 

(In production)

 RoHS
WA1422B005F3

A1422B005F3 – 4 Ch. Charge Preamplifier, 5mV/MeVgain, Cdet<1000pF

 

(In production)

 RoHS
WA1422B045F2

A1422B045F2 – 4 Ch. Charge Preamplifier, 45mV/MeVgain, Cdet<200pF

 

(In production)

 RoHS
WA1422B045F3

A1422B045F3 – 4 Ch. Charge Preamplifier, 45mV/MeVgain, Cdet<1000pF

 

(In production)

 RoHS
WA1422B090F2

A1422B090F2 – 4 Ch. Charge Preamplifier, 90mV/MeVgain, Cdet<200pF

 

(In production)

 RoHS
WA1422B090F3

A1422B090F3 – 4 Ch. Charge Preamplifier, 90mV/MeVgain, Cdet<1000pF

 

(In production)

 RoHS
WA1422B400F2

A1422B400F2 – 4 Ch. Charge Preamplifier, 400mV/MeVgain, Cdet<200pF

 

(In production)

 RoHS
WA1422B450F2

A1422B450F2 – 4 Ch. Charge Preamplifier, 450mV/MeVgain, cdet<200pF

 

(In production)

 RoHS
WA1422C001F3

A1422C001F3 – 8 Ch. Charge Preamplifier, 1mV/MeVgain, Cdet<1000pF

 

(In production)

 RoHS
WA1422C005F2

A1422C005F2 – 8 Ch. Charge Preamplifier, 5mV/MeVgain, Cdet<200pF

 

(In production)

 RoHS
WA1422C005F3

A1422C005F3 – 8 Ch. Charge Preamplifier, 5mV/MeVgain, Cdet<1000pF

 

(In production)

 RoHS
WA1422C045F2

A1422C045F2 – 8 Ch. Charge Preamplifier, 45mV/MeVgain, Cdet<200pF

 

(In production)

 RoHS
WA1422C045F3

A1422C045F3 – 8 Ch. Charge Preamplifier, 45mV/MeVgain, Cdet<1000pF

 

(In production)

 RoHS
WA1422C090F2

A1422C090F2 – 8 Ch. Charge Preamplifier, 90mV/MeVgain, Cdet<200pF

 

(In production)

 RoHS
WA1422C090F3

A1422C090F3 – 8 Ch. Charge Preamplifier, 90mV/MeVgain, Cdet<1000pF

 

(In production)

 RoHS
WA1422C400F2

A1422C400F2 – 8 Ch. Charge Preamplifier, 400mV/MeVgain, Cdet<200pF

 

(In production)

 RoHS
WA1422C450F2

A1422C450F2 – 8 Ch. Charge Preamplifier, 450mV/MeVgain, cdet<200pF

 

(In production)

 RoHS
WPERS0142201

A1422A 1 Ch Preamplifier Personalization for Improved Input ESD Protection

 

(In production)

 RoHS
WPERS0142204

A1422B 4 Ch Preamplifier Personalization for Improved Input ESD Protection

 

(In production)

 RoHS
WPERS0142208

A1422C 8 Ch Preamplifier Personalization for Improved Input ESD Protection

 

(In production)

 RoHS
Data Sheet Download Compare

A1422: Data Sheets

Name
Revision
Format
File Size
Last Update
A1422 - Low Noise Fast Rise Time Charge Sensitive Preamplifier (PCB version)
5
pdf
0.73 Mb
30/11/2022
A1422 - Low Noise Fast Rise Time Charge Sensitive Preamplifier (Hybrid version)
3
pdf
5.03 Mb
18/03/2024

A1422: Download

Application Notes

Name
Revision
Format
File Size
Last Update
AN8616 - CAEN Preamplifiers selection guide
0
pdf
0.79 Mb
08/07/2024

Articles

Name
Revision
Format
File Size
Last Update
AR12026 - Modular apparatus for nuclear reactions spectroscopy (MARS): characterization and first application to determine 12C(6Li,4He)14Ng.s nuclear reaction cross sections
0
pdf
2.29 Mb
06/04/2025
AR11920 - Study of the effect of detector to front-end electronics distance on the spectrometric performances of solid-state detectors
0
pdf
0.89 Mb
09/08/2024
AR12014 - Preliminary tests of detector prototypes and front-end electronics integration in MIRACLES (ESS)
1
pdf
1.73 Mb
18/11/2025

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