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i have drawn the final cct using PROTEUS 7 professional software and when i run the simulation there are some errors that i cant find the solution..i attached the circuit and the simulation error if you know whats the problem please..
i set up the amplifier with G=7, after the right leg driver with G=1M/24.after the AD620 is a high pass filter Fc=0.03Hz with voltage follower G=1.after is the low pass filter Fc=100Hz and a non-inverting amplifier of G=144. so i have overall gain = 1008..but i cant understand why when i run the simulation it fails.
can you help me please
when i draw the cct until the high pass filter is simulating ok after when i connect the voltage follower and the non-inverting amplifier the simulation fails
Your filters are so simple that they hardly do anything.
So you think if i chane the filters and make a second order RC flters or a passive filters using op-amp will be better?
Can you please tell me the bandwidth of this bandpass filter? and the calculations if is possible please
what is the cut off frequecy of a low pass filter in an ECG device?
i will searc the web thanks..as they told me there are digital and analogue oscilloscopes..i will see the ech signal on a analogue oscilloscope or i must use a digital one?
i borrowed from a friend an oscilloscope but it desnt say if is digital or analogue.and when i was in the lab the oscilloscope that i was using it was digital.
anw here is the final circuit..check it please and if you see something unproper tell me
thanks