EG&G/ORTEC AN308/NL DUAL 8-INPUT MIXER.
EG&G/ORTEC AN308/NL DUAL 8-INPUT MIXER.
CHARACTERISTICS
The AN308/NL is a direct-coupled dual 8-input linear mixer capable of
high-speed summing of either anode or dynode signals from a fast
photomultiplier array. The unit is packaged in a single-width NIM
module (per TID-20893) for installation in a NIM-standard bin and
power supply. Each of the two identical sections of the unit can
accept the signals from up to eight sources provided that the sum of
their simultaneous signals does not exceed 2V of either polarity on
50 Ohm. With a nominal gain of unity the summed signals are
fanned out through a bridging 2-connector output to be terminated in
50 Ohm. For larger systems the two sections of the AN308/NL can be
connected to serve as one 16-input linear mixer. The wide dynamic
range of the unit allows its outputs to be used for large majority
logic functions. The inputs of the AN308/NL provide good 50 Ohm
termination with low reflections from fast transient signals. A
high degree of input protection is provided to accommodate large
overloads without damage. The output is noninverting, and for
fast rising input signals the output rise-time limits at 2 nSec with
minimum overshoot and distortion. The unit is completely
dc-coupled and its input and output offsets are sufficiently stable
for several sections to be cascaded.
SPECIFICATIONS
|
INPUTS |
Inputs 1 - 8 |
LEMO Connectors accept input signals |
|
Impedance |
50 Ohm dc-coupled |
|
|
Polarity |
Positive or negative |
|
|
Reflections |
<5% for +/-2V, 1 nSec rise-time input |
|
|
Linear Range |
+2V to -2V |
|
|
Protection |
+/-5V dc, +/-50V transient |
|
|
Offset |
<+/-5 mV with all inputs terminated in 50 Ohm |
|
|
Temperature Coefficient |
<100 uV/'C |
|
|
OUTPUTS |
Out |
Two LEMO connectors for fanout of one bridging current source per section |
|
Polarity |
Noninverted input polarity |
|
|
Linear Range |
+40mA to -40mA |
|
|
|
Offset |
Adjustable from +150mV to -150mV on 50 Ohm load |
|
Temperature Coefficient |
<300uV/'C on 50 Ohm load |
|
|
Rise and Fall Times |
<2nSec with all inputs terminated in 50 Ohm |
|
|
Overshoot |
<5% with all inputs terminated in 50 Ohm |
|
|
CONTROLS |
DC Balance |
Front panel 22-turn potentiometer controls the output offset |
|
PERFORMANCE |
Gain |
0.91 +/- 1.5% over full linear range with all inputs and outputs terminated in 50 Ohm |
|
Bandwidth |
> 180 MHz |
|
|
Propagation Delay |
Typ. 2.5 nSec |
|
|
Operating Temp. Range |
0-50'C |
|
|
ELEC. & MECH. |
Dimensions |
Single-width NIM-standard module |
|
Connectors |
LEMO 00C50 |
|
|
Power Required |
+6V
90mA; -6V 88mA |