Hi,
I created simple circuit with photodiode for pulse oximeter. As you can see I use opamp in single supply mode. After removing DC offset I put 1V offset on non-inverting input on opamp. Then RC filter is connected to grond. Is everyting correct?
I wonder if I should connect REF on ADC to ground or 1V offset voltage?
Thanks in advance.
I created simple circuit with photodiode for pulse oximeter. As you can see I use opamp in single supply mode. After removing DC offset I put 1V offset on non-inverting input on opamp. Then RC filter is connected to grond. Is everyting correct?
I wonder if I should connect REF on ADC to ground or 1V offset voltage?
Thanks in advance.