ecg signal - need sample code for sampling negative signal

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Vinod Mehra

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ecg signal

Hi All:

I am relatively new to 16 bits.

My task is to sample an analog ECG signal from an ECG amplifier (0-3v analog). I am able to display the positive values of ADC on LCD, but unable to ADC/sample the negative going signals. Can anybody point me to sample code for sampling negative going signals.

I am using explorer16 board with PIC24FJ128GA010.

Thanks.
Vinod
 

Re: ecg signal

use opamp offset input voltage as solution.. to increse the input level upto 1V..
 

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