OSCILLOSCOPE_COUNTER_PREAMPLIFIER

Published:2009/7/9 2:04:00 Author:May | From:SeekIC

The circuit will provide a 20±0.1 dB voltage gain from 500 kHz to 50 MHz. The low-frequency response of the amplifter can be extended by increasing the value of the 0.05-μF capacitor connected in series with the input terminal. This circuit will yield an input-noise level of approximately 10 μV over a 1 5. 7-MHz bandwidth. The gain can be catibrated by adjusting the potentiometer connected between pins 4 and 11. The 1-KΩ potentiometer can be adjusted for an exact voltage gain of 10. This preserves the scale factor of the instrument.



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