Recent content by bour1992

I am using a theoretical ground at 2.5V so that we have a positive voltage supply +2.5V and a negative -2.5V.

Hello, I am trying to make a simple ecg/emg acquisition circuit. I am using 2 of these https://www.olimex.com/Products/EEG/Electrodes/EEG-AE/ active electrodes for the differential signal and this https://www.olimex.com/Products/EEG/Electrodes/EEG-PE/ as a passive DRL electrode. My supply is...

I begin to get it now. But I am still a bit confused because if we wanted the bias current to go to the op amp we would connect R to +Vdd. So the bias current flows out of the op amp and to the ground through R?

Thank you for the answer. I know that the CR pair in the input forms a high pass filter and the consequences of that. The thing that I still can't understand is that we put the R as a path for bias current. Somewhere I read that without R, the op amp would be in saturation constantly. Why is that?

So in the input of this buffer circuit I have a small AC signal (μV) that is capacitively coupled to an op amp. What is the role of R? I read that it is to provide a bias current path and it has to be large in general but I can't understand it. Any help much appreciated

What do you think is the best book in Microelectronics between these two: Analysis and Design of Analog Integrated Circuits - Gray,Hurst,Lewis,Meyer https://www.amazon.com/dp/0471321680/?tag=pfamazon01-20 Microelectronic Circuits - Sedra,Smith...

thank you mXSCNT for your help. So after calculations I found that p=1 or p=1/2. Can you confirm that this is the right answer?

A server sends 3 digits (0 and 1) to a computer. The probability of sending 0 is p. I have to check under which conditions the events: A={at least 2 of 3 digits is 0} B={all the digits are the same} are independent. I thought that they will be independent if the first 2 digits are...

the work in a constant force is: W=F*d. Moreover the work can be calculated from the area from graph F-d. I can't find the work with either ways.

Homework Statement How can I calculate the work which is produced by the resistance force in a forced oscillation in one period? The only forces on the oscillatory body are the resistance force and the external force. The oscillatory body is in resonance.Homework Equations resistance force...