Hi,
I have a (simple) question about biasresistors. I want to add a simple opampbuffer after a preamp (for impedance matching). The preamp runs on a dual power supply and so does the buffer. Is it necessary to add a biasresistor to ground at the + side of the opamp? And why, or why not?
It seems to me that once the bias is set in a circuit, you're done. But I might be wrong...
I have a (simple) question about biasresistors. I want to add a simple opampbuffer after a preamp (for impedance matching). The preamp runs on a dual power supply and so does the buffer. Is it necessary to add a biasresistor to ground at the + side of the opamp? And why, or why not?
It seems to me that once the bias is set in a circuit, you're done. But I might be wrong...