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Models 9305-P
Fast Preamplifier |
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- Fast preamplifier for use with photomultipliers, electron
multipliers, etc., in photon or ion counting applications
- Output of ±5 V into 50
W
Input protection
<3 ns rise and fall times
DC coupled, with excellent DC offset and gain stability
Voltage gain adjustable from x5 to x10
<5 ns overload recovery time
Compact and lightweight
General
The Model 9305 Fast
Preamplifier contains a direct-coupled wideband hybridized amplifier
suitable for use with photomultipliers, electron multipliers, and other
detectors used in photon counting, ion counting, or fast-timing
applications.
In addition to the fast rise time (<3 ns), the Model 9305 has a
variable voltage gain of x5 x10 and can drive ±5 V into a
50 W
load. The 9305 also features excellent DC offset and gain stability along
with low noise and <5 ns overload recovery time. Overload input
protection is provided also.
Hybrid circuit technology gives the Model 9305 high performance and
reliability. For operator convenience independent controls for bandwidth (BDW),
output DC offset (DC), and gain (GAIN) are included.
Because of its compact size and light weight, the Model 9305 is ideal
for mounting directly on or close to a detector. Consequently, low-level
signals which would otherwise be susceptible to distortion by noise or
interference are amplified to a suitable level for cable connection to the
main amplifier.
The instrument is powered via an integral
3 m (10') long power cable fitted with a 9-pin D type connector that
is compatible with ORTEC NIM-standard modules.
| Input |
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Connector |
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BNC |
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Mode |
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Single-ended |
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Coupling |
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DC |
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Impedance |
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50
W |
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Noise |
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£ 25 µV
rms equivalent input noise |
| Gain |
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x5 to x10
(screwdriver adjustable), non-inverting |
| Gain
Accuracy |
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±2% |
| Gain
Stability |
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<
±0.05%/°C. |
| Output |
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Connector |
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BNC |
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Impedance |
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<
1 W |
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Voltage |
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Will
deliver ±5.0 V into
a 50 W load |
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Coupling |
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DC |
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DC
Stability |
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£ ±150 µV/°C
referred to the output |
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Risetime |
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£ 3 ns |
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Bandwidth |
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> 120 MHz |
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Linear Range |
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±5 V |
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Nonlinearity |
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< ±1% for
output voltages up to ±5 V |
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Overload
Recovery |
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5 ns
typical for x10 overload |
| Controls |
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BDW |
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20-turn
front-panel screwdriver adjustable potentiometer sets the output
bandwidth and overshoot |
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DC |
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20-turn
front-panel screwdriver adjustable potentiometer sets the output DC
offset |
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GAIN |
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20-turn
front-panel screwdriver adjustable potentiometer sets the voltage
gain in the range x5 to x10 |
| Power |
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±12 V
regulated DC @ 67 mA max, via 9-pin D type connector. Supplied
with integral 3 m (10') power cable. |
| Dimensions
(excluding connectors) |
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38 mm
wide x 89 mm deep x 61 mm high
(1.5" wide x 3.5" deep x 2.4" high) |
| Weight |
Net |
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320
g (0.75 lb) |
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Shipping |
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1.25 kg
(2.75 lb) |
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is
a trademark of AMETEK, Inc.