A1429

64 Channel Charge Sensitive Preamplifier

Datasheet

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64-channel
Max. output voltage: +/- 4,5V Diff on 100 Ω termination
Sensitivities: 20, 45, 90, 200, 400mV / MeV
Dimension (mm): 180 x 105 X 25 mm
Input bias voltage (± 400 V Max) (2 LEMO-00 connector)
ESD input protection
TEST pulse input (1 LEMO-00)
Low power consumption (< 50 mW for ch.)
True Differential output (with 100 Ω Diff. back termination)
Noise < 5 KeV on 0 pF input and < 35 eV/pF slope
Rise Time < 20 ns @ 0 pF, < 60 ns @ 200 pF

Ultra high density preamplifier for big size segmented silicon and gas detector arrays

The CAEN Mod.A1429 is a 64 ch. highly integrated charge preamplifier, suitable for single or double sided multi-strip silicon detectors as well as for multi-channel detectors with common Bias. Its compact size and low power consumption make it ideal for direct detector coupling in a high vacuum system. It is equipped with two LEMO-00 Bias inputs, one input for channels from 0 to 31 and a second for channels from 32 to 63.
Furthermore, on the odd channels it is possible to select the Bias to GND with an internal jumper.
The A1429 is available in different sensitivities: 20, 45, 90, 200, 400 mV / MeV.
The preamplifier output signals are in true differential supporting low-cost twisted flat cables for the output connection.
This feature allows to easily couple the A1429 with the new generation digitizer VX2740/VX2745 thus creating a complete chain for the readout of a segmented detector array.

Ordering Options

Code	Description
WA1429X020AA	A1429x020 – 64 Ch. Charge Sensitive Preamplifier 20 mV/MeV	RoHS
WA1429X045AA	A1429x045- 64 Ch. Charge Sensitive Preamplifier 45 mV/MeV	RoHS
WA1429X090AA	A1429x090- 64 Ch. Charge Sensitive Preamplifier 90 mV/MeV	RoHS
WA1429X200AA	A1429x200- 64 Ch. Charge Sensitive Preamplifier 200 mV/MeV	RoHS
WA1429X400AA	A1429x400- 64 Ch. Charge Sensitive Preamplifier 400 mV/MeV	RoHS

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Image	Name	Package	Out Conn.	In Conn.	Test Capac. (pF)	Max Detector Bias Voltage (V)	Integral Non-linearity	Output Linear Range (V)	Output Rise Time (ns)	Noise FWHM keV (Si)	Sensitivity (mV/MeV) (Si)	No. Of Channels
	A1422H	15 Pin SIP hybrid	-	-	1 / 10 / 47	±800	< ± 0.05% (0 ÷ ±10 V 1 kΩ term.)	±10 (1 kΩ term.) ±4.5 (50 Ω term.)	< 5/10/70 @0pF <20/25/45 @390pF	< 2.2/4.7 @0pF <5.8/10.5 @390pF	1/5/45/90/<br>400/450	1
	A1422C/D	Shielded box	RJ-45	SHV	1 / 10	± 2000	<± 0.05%<br>(0 ÷ ±10V 1 kΩ term.)	±5 (1 kΩ term.)<br>±2.5 (100Ω term.)	< 5 @0pF<br><15 @200pF	< 4.7 @0pF<br>< 7.6 @200pF	5	8
	A1422	Shielded box	LEMO or BNC	SHV	1/10/47	±2000	< ± 0.05% <br>(0 ÷ ±10V 1kΩ term.)	±10 (1kΩ term.)<br>±4.5 (50Ω term.)	<5/10/70 @0pF<br><10/20/25/45 @390pF	<2.2/4.7 @0pF<br><5.5/5.8/10.5/36 @390pF	1/5/45/90/<br>400/450	1/4/8
	A1429	Shielded box	Header (17+17)	Samtec 80-pin 0.8mm	0.5 / 1 / 2.2	±400 V Max	N.A.	Differential ± 4.5 VDiff max on 100Ω Term	<20ns @0 pF<br><60ns @200 pF	<5 KeV @0 pF<br><35 eV/pF	20/45/90/<br>200/400	64
	A1422E/F	Shielded box	SMA	SMA	1	±750	<±0.05%<br>(0 ÷ ±10V 1kΩ term.)	±10 (1 kΩ term.)<br>±4.5 (50 Ω term.)	<5.4 @0pF<br><60 @330pF	<2.8 @0pF<br><6.8 @330pF	200	2/4
	A1442	Shielded box	Header (17+17)	D-SUB 25	N.A.	±400	N.A.	Differential ±4.5 Vdiff	< 10 @0pF<br /><20 @200pF	<5 @0pF<br><9.5 @200pF	20 / 100 <br>Selectable	16/32
	Discontinued A422	14 pin SIP hybrid	-	-	10	±1000	<0.05%	± 8 ± 4	<20	<9.8 @470pF	1/45/90	1
	A422A	Shielded box	BNC	SHV	10	±5000	< 0.045%	± 8 ± 4	< 50	<17.5 @1nF	5/30/60	1

Image	Name	FORM FACTOR	NO. OF CHANNELS	DESCRIPTION	SENSITIVITY	COMPATIBLE DETECTORS
	A1422H	Single in-line package	1	Low Noise Fast Rise Time Charge Sensitive Preamplifiers (SIP)	1/5/45/90/400/450<br>mV/MeV (Si)	Silicon (Si)
	A1424	Desktop	1	Fast Charge Sensitive Preamplifier	3.6 mV/fC	Diamond
	A1422C/D	Desktop	8	Low Noise Fast Rise Time Charge Sensitive Preamplifier	5 (mV/MeV) (Si)	He3 / BF3 Tubes
	A1422	Desktop	1 / 4 / 8	Low Noise Fast Rise Time Charge Sensitive Preamplifiers	1/5/45/90/400/450<br>mV/MeV (Si)	He3 / BF3 Tubes<br>Proportional Counters<br>Ionization Chambers<br>Segmented Silicon <br>Silicon (Si)
	A1429	Desktop	64	Charge Sensitive Preamplifier	20/45/90/200/400<br>mV/MeV (Si)	GEM Segmented Silicon
	A1427	Desktop	1	Low Noise Fast Current Neutron Flux Preamplifier	FC: 700÷2500<br>(Trimmer adjustable)<br>PR: 500÷1500<br>(Trimmer adjustable)	Fission Chambers<br>Proton Recoil
	A1422E/F	Desktop	2 / 4	Low Noise Fast Rise Time Charge Sensitive Preamplifiers	200 mV/MeV (Si)	Silicon (Si)
	A1442	Desktop	16 / 32	Charge Sensitive Preamplifier	Selectable 20/100<br>mV/MeV (Si)	GEM Segmented Silicon
	New A1421	Desktop	1	Preamplifier and Discriminator for 3He tubes	30 mV/fC on HiZ<br>(15 mV/fC on 50 Ω)	He3 / BF3 Tubes
	R1443	19” rack unit	32 / 64	Preamplifier Unit for 3He tubes	2.25 V/pC	He3 / BF3 Tubes
	A1423B	Desktop	1	Wideband Preamplifier	Selectable From<br>+18 dB to +54 dB	Diamond PMT<br>Scintillators<br>SiPM / MPPC
	A1426 CARDARELLI	Desktop	1	Matched Charge Preamplifier	Up to 5 mV/fC	Diamond
	A1436 / A1436A	Desktop	1 / 8	Differential Input Low Noise Transimpedance Amplifiers	Programmable<br>10<sup>9</sup>/10<sup>8</sup>/10<sup>7</sup>/10<sup>6</sup>/10<sup>5</sup>/10<sup>4</sup>/10<sup>3</sup><br>(V/A), 10<sup>9</sup> V/A (A1436 only)	Diamond PMT / Scintillators<br>Silicon (Si)
	A1425	Desktop	1	Fast Charge Sensitive Preamplifier	3.6 mV/fC	Diamond
	A422A	Desktop	1	Charge Sensitive Preamplifier with Timing	5/30/60 mV/MeV (Si)	Proportional Counters<br>Ionization Chambers<br>Silicon (Si)


Packaging	Shielded Box Dimensions (WxHxD): 180 x 105 x 25 mm³ (without connectors) Weight: 900 g
Polarity	Positive or Negative Charge Input polarity Output polarity: Differential
Max Energy Ranges (Si)	225 MeV (Si) @ 20 mV/MeV 100 MeV (Si) @ 45 mV/MeV 50 MeV (Si) @ 90 mV/MeV 22 MeV (Si) @ 200 mV/MeV 11 MeV (Si) @ 400 mV/MeV
Output voltage	Differential ± 4.5 VDiff max on 100 Ω Term. Max Output offset: ± 100 mV Common Offset adjust on Front Panel Trimmer
Noise	Model Detector capacitance 0 pF 20 mV/MeV < 5 KeV slope < 28 eV/pF 45 mV/MeV < 4 KeV slope < 28 eV/pF 90 mV/MeV < 4 keV slope < 28 eV/pF 200 mV/MeV < 4 keV slope < 35 eV/pF 400 mV/MeV < 4 keV slope < 35 eV/pF
Rise Time	< 20 ns @ 0 pF detector capacitance < 60 ns @ 200 pF detector capacitance
Decay time	20 mV/MeV 50 μs 45 mV/MeV 100 μs 90 mV/MeV 50 μs 200 mV/MeV 22 μs 400 mV/MeV 11 μs
DETECTOR INPUT	Accepts positive and negative input charge pulses from semiconductor detectors and supplies the HV bias to the detector itself; Detector input (AC coupled) – 22 MΩ to HV-IN ESD input protection Samtec ERF8-040-01-L-D-RA-L-TR connector A3429: Adapter to Nr. 4 17×2, 2.54 mm male Header Connectors Micro-coax cable ERCD series available from Samtec
HV-IN	HV BIAS input / Detector bias voltage ± 400 V Max Nr.2 LEMO-00 connector HV-IN[0:31] for ch. 0 to 31
TEST IN	HV-IN[32:63] for ch. 32 to 63 Positive or negative input for the energy calibration via Ctest 20 mV/MeV 2.2 pF 45/90 mV/MeV 1 pF 200/400 mV/MeV 0.5 pF Nr.1 LEMO-00 connector 50 Ω on request
POWER IN	Power supply input connector Power supply voltage: pin 1 +6 VDC pin 2 GND pin 3 -6 VDC DMini XRL 3 Pin Male connector An adapter cable from DMini XLR to DType 9-pin connector is supplied in the kit. length: 3 m pin 1,2 GND pin 3 +6 VDC pin 5 -6 VDC
DIFFERENTIAL OUTPUTS	Amplifier Out Differential ± 4.5 VDiff max 100 Ω Diff. back termination Nr. 4 connectors: Header with Latches 17+ 17 pins (male) pitch 2.54 mm
Power Requirements	+6 V < 350 mA (no load) -6 V < 195 mA (no load)
Energy Sensitivity	20, 45, 90, 200, 400 mV/MeV (Si)
Environmental	Indoor use

A1429

64 Channel Charge Sensitive Preamplifier

Ordering Options

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A1422H

A1422C/D

A1422

A1429

A1422E/F

A1442

A422

A422A

A1422H

A1424

A1422C/D

A1422

A1429

A1427

A1422E/F

A1442

A1421

R1443

A1423B

A1426 CARDARELLI

A1436 / A1436A

A1425

A422A

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A1429

64 Channel Charge Sensitive Preamplifier

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A3429

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