Model 9250 30MHz Differential / Dual-Channel Signal Amplifier0 pages

MODEL 9250
40Vp-p Differential / Dual Channel
Signal Amplier
• Large signal bandwidth to 15MHz
• Small signal bandwidth to 30MHz
• High amplitude to 40Vp-p (into high impedance)
• Slew rate to 500V/μs
• Low distortion
• Custom Conguration of:
Gain
Input impedance
Output impedance
Output conguration
The 9250 is a bench-top, 2U, half 19” rack
size, fully metal case dual channel amplier.
The instrument can be congured to be
used as two, single-ended independent
channels, or as a one input with two
differential outputs.
Input Characteristics
The inputs to the ampliers can be congured
to match different source impedances such
as 50Ω, 75Ω, or 1MΩ and the outputs
can be congured to match different load
impedances such as 50Ω, 75Ω, or 600Ω.
There are three inputs for each channel:
1. Main input. This input is located on
the front panel and is normally used
for signal inputs.
2. Auxiliary input. This input is located
on the rear panel and can be used as
a summing input.
3. DC Offset input. This input is also
located on the rear panel and can be
used for offsetting the signal level within
the specied output level window.

Output Characteristics
The outputs are located on the front panel.
There are two outputs, one for each channel.
When the 9250 is congured as two separate
ampliers, the outputs generate amplied
signals within the range of 40Vp-p into
open circuit or 20Vp-p into matching load
impedance. The bandwidth of the outputs is
around 15MHz for large signals. Small signal
bandwidth can reach 30MHz.
Instrument Conguration
The 9250 can be congured as a differential
amplier. In this case, the channel 2 input is
disabled and channel 1 input is amplied and
distributed differentially to both outputs. In this
case, channel 1 output generates in-phase signal
while channel 2 outputs an inverted signal that
has exactly 180 phase offset to the normal output.
Full amplitude and bandwidth is preserved when
the 9250 operates in differential mode. The output
impedance of the differential outputs is modied
to 25Ω, 37.5Ω, or 300Ω for differential drive of
50Ω, 75Ω, or 600Ω loads. Using the differential
mode, the 9250 does not sacrice accuracy, nor
does it sacrice bandwidth.

Auxiliaries
The 9250 has two additional inputs for each
channel allowing summation of two signals
and providing an external control of DC
level offset. These inputs are accessible
from the rear panel only.
Target Applications
The amplier case was designed to stack on
top or below other Tabor products. It can also
be mounted alongside a Tabor generator in
a standard 19" rack. The waveform-amplier
combo is an ideal solution for virtually any
high-voltage, wide bandwidth application.