7171 Variable Gain Preamplifier


FEATURES

DESCRIPTION

The Model 7171 is a four channel, direct-coupled amplifier packaged in a double width CAMAC module. The Model 7171 features calibrated non-inverted gain steps from one to ten. The bipolar capability amplifies both positive or negative signals making it compatible with most detectors or preamplifiers.

Stability was given particular attention during the amplifer's design. Both the DC and fast pulse characteristics are exceptional. This allows for cascading of channels for gains in excess of 500 without suffering significant overshoot or baseline drift. Each channel has individual offset controls which can compensate for DC offsets due to the input source impedance or differences in ground levels.

The output stage is a low-impedance voltage source design with short-circuit protection. No damage can occur from overloading or continuous shorts to ground. The outputs have been designed to drive two to 50 ohm loads for fan-out of the amplified signal. However, unused outputs may be left unterminated with no adverse effects.


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