1. 1 GENERAL INFORMATION
The AN201/N Quad Amplifier Module (Figure 1) contains four independent amplifiers. Each amplifier has a wide bandwidth, short rise and fall times with very small overshoot, and a large output swing. The AN201/N is particularly suited for "single photon" counting applications. The AN201/N output signal range is compatible with the threshold range of all EG&G discriminator modules and with other M100 Nuclear Instrumentation System Modules that accept fast negative signals.
The degenerative feedback used in each amplifier section provides excellent linearity and gain stability. AC-coupling between amplifier stages allows high gain without amplification of input offset.
SPECIFICATIONS
|
INPUT |
Imoedance |
50 ohm |
|
Range |
0V to -0.25V |
|
|
Reflections |
(ac) <+/-8% from 1 nSec rise and fall times; (dc) < +/- 2 % |
|
|
Noise |
< 50uV rms, referred to the input |
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|
Maximum Non-destructive Input Limits |
(ac) +/- 100V transients of <1 uSec duration and < 1 Hz repetition rate, from 50 Ohm source (dc) +1. 0V and -4. 0V |
|
|
GAIN |
Normal Gain |
4.0 +/-5% (each section) |
|
Nonlinearities |
< 2% from 0V to -0.85V output, and <3% from 0V to - 1.0V output |
|
|
Temperature Coefficient of Gain |
< +/-0.05%/'C |
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|
OUTPUT |
Linear Range |
0V to - 1.0V |
|
Maximum Output |
+0.3V to -1.4V (with respect to 50 Ohm load) |
|
|
Rise and Fall Times |
Typ. 1.6 nSec (10% to 90%) from 1 nSec rise and fall time input and with <3% output overshoot (rise and fall times corrected for input, typ. 1.3 nSec) |
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|
TILT |
Time Constant |
Typically 400 uSec |
|
Decay |
90% of input step occurs in 40 uSec |
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|
Temperature Coefficient |
<+/-0.1%/'C |
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|
OVERLOAD RECOVERY |
<2 nSec, from -20V source of impedance 50 Ohm and fall time of 0.3 nSec |
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PROPAGATION DELAY |
Typ. 3.2 nSec |
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POWER REQUIREMENTS |
+24V, 115mA |
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PANEL COLOR |
Red |