modularEEG input stage prototype

From: Joerg Hansmann (info_at_jhansmann.de)
Date: 2001-12-20 00:04:48

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Hi,

I have changed my comEEG prototype back, as it has been before
and done some noise measurements.

The picture shows the 50uVp-p calibration signal to the right
(height in pixel: 167) and the noise of the shorted input to the
left side. The noise is 4 pixel high: That means about 1.2uVp-p

The 555 PWM-ADC contributes half of the noise, the rest is from the
amplifier stage.

Regards,

Joerg

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