Oscilloscope-counter-preamplifier


Posted on Jun 15, 2012

The circuit will provide a 20 ±0.1 dB voltage gain from 500 kHz to 50 MHz. The low-frequency response of the amplifier can be extended by increasing the value of the 0.05-JLF capacitor connected in series with the input terminal. This circuit will yield an input-noise level of approximately 10 !LV over a 15.7-MHz bandwidth.


Oscilloscope-counter-preamplifier
Click here to download the full size of the above Circuit.

The gain can be calibrated by adjusting the potentiometer connected between pins 4 and 11. The 1-KO potentiometer can be adjusted for an exact voltage gain of 10. This preserves the scale factor of the instrument.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    IR Link PIC tranceiver
    1,5V Earphones Audio Amplifier
    Active-antenna
    Tube Amplifier Isolates High Voltages
    1 Second Time Base From Crystal Oscillator
    analog to digital converter adc0804
    Energy Leak Detector
    Astable multivibrator in an 8 pin PIC
    A sequence of opening and closing the outlet circuit
    A thirty light water digital control circuit



    Top