Difference between revisions of "TF EIM Chapt9"
(→Op-Amp) |
|||
| Line 12: | Line 12: | ||
A positive going input voltage at the non-inverting ("+") input produces a positive going output. | A positive going input voltage at the non-inverting ("+") input produces a positive going output. | ||
| + | A positive going input voltage at the inverting ("+") input produces a negative going output. | ||
| − | + | In other words the the output is in phase when the input is non-inverting and 180 degrees out of phase when the input is inverting. | |
Revision as of 01:07, 12 April 2011
Operational Amplifiers (Op Amps)
The operational amplifier is monolithic (single chip) integrated circuit composed of transistors, resistors, diodes, and other components.
The small package produces a device with small capacitance and inductance which is superior to assembling the equivalent circuit with individual components.
Op-Amp
the "-" sign indicates the inverting input terminal and the "+" indicates the non-inverting input.
A positive going input voltage at the non-inverting ("+") input produces a positive going output.
A positive going input voltage at the inverting ("+") input produces a negative going output.
In other words the the output is in phase when the input is non-inverting and 180 degrees out of phase when the input is inverting.