|
|
|
Models VT120A-P, VT120B-P and VT120C-P
Fast-Timing Preamplifiers |
|
- Preamplifier for boosting signals with very fast rise times, such as
those from from microchannel plates, photomultiplier tubes, and
silicon detectors
- £ 1 ns rise time
- Output drives 5 V into 50
W
- Compact size allows unit to be positioned right next to the signal
source
- £
20 µV
rms equivalent input noise
General
The Model VT120 Fast-Timing Preamplifier is
a high-performance, wide-bandwidth preamplifier designed for boosting very
fast linear signals from microchannel plates, photomultipliers, electron
multipliers, silicon detectors and other detectors used in fast timing
applications, such as time-of-flight mass spectrometry. The rise time on
all three versions is <1 ns with a 5 V output, enabling
excellent timing resolution.
The Model VT120 is a
single-channel unit in a small preamplifier package. It is available with
voltage gains of x200, non-inverting (A version); x200, inverting (B
version); and x20, non-inverting (C version). BNC connectors are used for
signal input and output connections, while power is provided via a Lemo
connector. A matching 3 m length power cable, model C-VT120-P, is
also available for use when powering from the preamplifier power output on
an ORTEC instrument.
| Input |
|
|
|
Connector |
|
BNC |
|
Mode |
|
Single-ended |
|
Coupling |
|
AC |
|
Impedance |
|
50
W |
|
Noise |
|
£ 20 µV
rms equivalent input noise |
| Frequency
Response |
|
10 MHz
to 350 MHz |
| Gain |
|
|
|
|
VT120A-P |
|
x200,
non-inverting |
|
VT120B-P |
|
x200,
inverting |
|
VT120C-P |
|
x20,
non-inverting |
|
Accuracy |
|
± 10% |
| Output |
|
|
|
|
Connector |
|
BNC |
|
Voltage |
|
Will
deliver 0 to 5 V into a 50 W
load |
|
Impedance |
|
£ 1
W |
|
Coupling |
|
AC |
|
Risetime |
|
£ 1 ns |
| Power |
|
|
+12 V
regulated DC @ 50 mA max, via Lemo connector. Compatible with
accessory cable C-VT120-P |
| Dimensions
(excluding connectors) |
|
Aluminum
housing 58 mm x 51 mm x 16 mm
(2.3" x 2.0" x 0.63") |
| Weight |
Net |
|
200
g (0.4 lb) |
|
Shipping |
|
1.1
kg (2.4 lb) |
|
is
a trademark of AMETEK, Inc.