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Front view:
Input
Specification
Preamplification channels:
Equivalent noise charge (ENC)*:
200 electrons, 0.03 femtoCoul.
ENC RMS:
Equivalent noise in silicon:
Equivalent noise in CdZnTe:
4 electrons RMS /pF
ENC slope:
see table 1
Gain:
7 ns (see table 1)
Rise time**:
Decay time constant:
Unsaturated output swing:
Maximum charge detectable per event:
Power supply voltage (Vs):
Power supply current:
< 400 mW
Power dissipation:
Operating temperature:
+0.2 to -0.2 volts
Output offset:
Output impedance:
Net weight: 195 g (320 g including power supply)
Physical:
Size without connectors: 113 mm x 70 mm x 24 mm
Size with connectors: 153 mm x 70 mm x 24 mm
* Measured with input unconnected, using Gaussian
shaping amplifier with time constant =1 μs. With a detector
attached to the input, noise from the detector capacitance,
leakage current, and dielectric losses will add to this figure.
** Pulse rise time (defined as the time to attain 90% of maximum
value) has a linear relationship with input capacitance.
Value cited in the table assumes zero added input capacitance.
Tocalculate pulse rise time for practical situations,
use the equation: t
=0.4 Cd + 7 ns, where t
r
time in ns, and C
is the added capacitance (e.g. detector
d
capacitance) in pF.
Keep in mind that others factors within the detection system
may further limit this value.
2
CSPA1X_20210623
Page
CSPA1X charge sensitive preamplifier
Test in
1
1.7 keV (FWHM)
2.4 keV (FWHM)
140 μs (150 μs, 50 μs, 50 μs resp.)
-3 to +3 volts
(see table 1)
+12 volts nominal
< 30 mA
-40 to +85
C
°
1 or 50 ohms, set by jumper
is the pulse rise
r
FAST ComTec GmbH, Grünwalder Weg 28a, 82041 Oberhaching, phone: 49-(0)89 665180 -0, fax: 49-(0)89 665180 40,
Back view:
Power Supply
Table 1: Sensitivity Versions
Preamp model
Gain (mV
/picoCoulomb)
CSPA10
1400
CSPA11
150
CSPA12
15
CSPA13
1.5
Table 2: model specifications (noise, risetime)
Preamp model noise (ENC)
e
-
(RMS)
*
CSPA10
200 e
-
CSPA11
630 e
-
CSPA12
6,800 e
-
-
CSPA13
24,000 e
Table 3: input / High voltage connectors
model
Input
CSPA1X-2S
2 kV / 10 nF
CSPA1X-4S
4 kV / 4.7 nF
CSPA1X-1B
1 kV / 10 nF
CSPA1X-1BS
1 kV / 10 nF
Table 4: ordering information
Model No.
Description
CSPA10-2S
Charge-sensitive preamp, SHV, 2kV/10nF, 1.4 V/pC
CSPA11-2S
Charge-sensitive preamp, SHV, 2 kV/10 nF, 150 mV/pC
CSPA12-2S
Charge-sensitive preamp, SHV, 2kV/10nF, 15 mV/pC
CSPA13-2S
Charge-sensitive preamp, SHV, 2 kV/10 nF, 1.5 mV/pC
CSPA10-4S
Charge-sensitive preamp, SHV, 4kV/4.7nF, 1.4 V/pC
CSPA11-4S
Charge-sensitive preamp, SHV, 4 kV/10 nF, 150 mV/pC
CSPA12-4S
Charge-sensitive preamp, SHV, 4kV/4.7nF, 15 mV/pC
CSPA13-4S
Charge-sensitive preamp, SHV, 4 kV/10 nF, 1.5 mV/pC
CSPA10-1B
Charge-sensitive preamp, BNC, 1 kV/10 nF, 1.4 V/pC
CSPA11-1B
Charge-sensitive preamp, BNC, 1 kV/10 nF, 150 mV/pC
CSPA12-1B
Charge-sensitive preamp, BNC, 1 kV/10 nF, 15 mV/pC
CSPA13-1B
Charge-sensitive preamp, BNC, 1 kV/10 nF, 1.5 mV/pC
CSPA10-1BS Charge-sensitive preamp, BNC/SHV, 1kV/10nF,1.4 V/pC CSPA101BS
CSPA11-1BS Charge-sensitive preamp, BNC/SHV,1kV/10nF,150mV/pC CSPA111BS
CSPA12-1BS Charge-sensitive preamp, BNC/SHV, 1 kV/10nF,15mV/pC CSPA121BS
CSPA13-1BS Charge-sensitive preamp, BNC/SHV, 1kV/10nF,1.5mV/pC CSPA131BS
Output
HV input
Max. detect.
equiv. noise in
Pulse (e
-
)
silicon keV
(FWHM)
10
7
1.7 keV
10
8
6.0 keV
10
9
65 keV
10
10
230 keV
noise (ENC)
rise time
rise time slope
slope e
-
/pF
(C
=0pF)
d
4 e
-
/pF
7 ns
0.4 ns/pF
3.7 e
-
/pF
3 ns
0.25 ns/pF
28 e
-
/pF
6 ns
0.25 ns/pF
-
27 e
/pF
20 ns
0.25 ns/pF
Connectors input / HV
SHV / SHV
SHV / SHV
BNC / BNC
BNC / SHV
http://www.fastcomtec.com
Order No.
CSPA102S
CSPA112S
CSPA122S
CSPA132S
CSPA104S
CSPA114S
CSPA124S
CSPA134S
CSPA101B
CSPA111B
CSPA121B
CSPA131B
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