Ideal
operational Amplifiers
Ideal op-amp characteristics:
·
Infinite
voltage gain A.
·
Infinite
input resistance Ri, so that almost any signal source can drive it and there is
no loading of the proceeding stage.
·
Zero
output resistance Ro, so that the output can drive an infinite number of other
devices.
·
Zero
output voltage, when input voltage is zero.
·
Infinite
bandwidth, so that any frequency signals from o to ∞ HZ can be amplified with
out attenuation.
·
Infinite
common mode rejection ratio, so that the output common mode noise voltage is
zero.
·
Infinite
slew rate, so that output voltage changes occur simultaneously with input
voltage changes.
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