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25th July 2008, 07:10 PM
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 200mV 50kHz 40mA signal I am looking for an easy way to generate a square wave with the following characteristics: - 200mVPP - 50 KHz frequency - able to source 40mA (will be used with loads as low as 5 ohms) My current idea is to use a small transformer. Any other ideas? | |
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25th July 2008, 07:58 PM
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| 555 timer, plus an attenuator?
__________________ I also post at the following sites: http://www.stop-microsoft.org http://www.heated-debates.com Screen name: Aloone_Jonez And http://www.silicontronics.com, same screen name as here. | |
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25th July 2008, 11:28 PM
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| Are you talking about a simple voltage divider? Since my load is around 5 ohms, ideally the Thevenin equivalent resistance of the divider would be much less than that. | |
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26th July 2008, 12:53 AM
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| Use a 555 timer with a voltage divider on the output buffered by a unity gain rail-to-rail opamp that can do 40mA. | |
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