Output impedance in an op-amp is not high - it is low - input impendance is high, and this is because the input stage transistors have high gain.
Newer heard the word "impedence". An output impedance is an AC resistance at the output of an electronic device.
A buffer amplifier can be used to transform high input impedence to low output impedence, or vice-versa.
Feed back resistance plays the vital role of controlling output of the OPAMP. Also surrounding temperatures affects the out put of OPAMP. ANSWER: The gain drives the output to either B+ or B- minus the saturation of the output circuitry
Due to its *low noise *high input impedence and low output impedence FET is used in numerous applications. *Buffer ampliier *Phase shift oscillator *Integrator *Amplifier
Scroll down to related links and look at "Interconnection of two units" and find the picture of the amplifier and the loudspeaker. Learn about "voltage bridging" - Zout < Zin. There are no power amplifiers with a high impedance output.
An opamp buffer circuit is one where the input signal is connected to the plus input, and the output is connected to the minus input. Within the performance limitations of the opamp, the output will track the input. The advantage of the buffer circuit is that is presents very little load impedance to the input signal, while providing a low impedance from the output to drive whatever circuitry is connected there.
1)in cc configuration we use to get the low output impedence where as in ce we use to get the high output impedence. 2)in cc amplifier we use to have the voltage gain equal to unity where as in ce amplifier we use to have the high voltage gain. 3)in cc amplifier there is high power gai which is used for impedence matching where as in ce amplifier due to the high voltage gain the impedence matching is less impossible.
The output voltage of a opamp when the input of inverting and non inverting terminals are grounded
Scroll down to related links and look at "Measurement of input impedance and output impedance".
A: Any offset whether is voltage or current is an output error to contend with.
A practical opamp is designed to approach the characteristics of the ideal opamp as closely as possible. The open loop voltage gain of an ideal opamp is infinite, so while this is actually impossible to achieve practical opamps are built with as high an open loop voltage gain as possible.
Yes, you can plug an electric guitar into an acoustic amplifier. But I would suggest that you don't play at a high volume for a long period of time of the difference in impedence - an acoustic guitar (and bass and vocals) is low impedence, where an electric guitar (& keyboard) is high impedence.