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Subject: Design an preamplifier for oscilloscope to provide balanced or differential inputs when used with an osscilloscopewith a single-ended or unbalanced input

Date: 07/26/99
Posted by: luan dang
E-mail: luandang(at)bigpond(dot)com(dot)au(no spam)
URL: http://


Hi,I have trouble to design these. Could anyone help me please. Any idea how to design or any relative reference ? Below the design specification: - the preamp. need to provide gain from 1 to 100 - the frequency reponse of the preamp. extend from DC to 5 MHz or greater with an output load of 1 M Ohm in parallel with 5 pF capacitor. - each differential input can handle a max. input of +- 10V. Input impedance should greater than 100K Ohms. The max output voltage without overloading or distortion should be +- 10V - the preamp is operated by 9V dc power supply

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