770 / 771 Quad DC-300MHz Amplifier


FEATURES

DESCRIPTION

The Models 770 and 771 are four channel, direct- coupled amplifiers packaged in a single width NIM module. The Model 770 provides a non-inverting voltage gain of ten, and the Model 771 features calibrated gain steps from one to ten. Both models are fully bipolar and capable of amplifying positive or negative signals making them 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 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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