2006-06-25 12:01:58 · 7 answers · asked by STANLEY G 1 in Science & Mathematics ➔ Mathematics
An OP amp is short for Operational Amplifier. This thing can be used for many applications in the electronics field. Basically, an OP amp is comparable to a single transistor except that an OP amp has 2 inputs. One input can except positive input, and the other input accepts negative signal. OP amps have high input impedance in the order of 1megaohm or more. The output impedance is in the order of roughly around 75 ohms. You can use it as an open or closed loop -- meaning that the output of an OP amp is fed back to either the negative or positive input. One thing about OP amp is that it has infinitely high output gain when operated as open loop, whereas in close loop you can adjust your gain via using a larger resistor on the feedback loop line. The gain is determined by feedback resistor divided by input resistor. Is this too deep for you? Let me back up a little.
An OP amp can be used as an audio amplier, or RF amplier.
It is widely used in practically every application whether it is a car stereo, TV, home stereo, computer, and just about anything that involves electronics nowadays.
2006-07-08 22:21:25 · answer #1 · answered by FILO 6 · 0⤊ 0⤋
hmmm.. lemme see... I have diodes... resistors... capacitors... tubes (oh.. uhmm.. triodes for some of you old people).. ahh! here we go! integrated circuits...
linear devices...
Operational Amplifiers...
hmmm...
Voltage Comparator, Power Amp... applications: servo amplifiers and drivers, high input impedance audio amplifiers, DC-DC converters, precision power comparators which can either sink or source current, and motor speed controls.
I'm looking at the National Semiconductor LM13080 Programmable Power Op Amp.. from June 1978... but I think they are still much the same.. except more efficient these days.
2006-07-08 08:46:04 · answer #2 · answered by ♥Tom♥ 6 · 0⤊ 0⤋
Op-amp is short for Operational Amplifier. They are an electric component, like resistors, capacitors, transistors, ...
As the name implies, their main use is in various types of amplifier circuits. A main use is in hardware based implementations of feedback loops, where they can be used as differential amplifiers and summation amplifiers
2006-06-26 08:24:22 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Op-amp is short for Operational Amplifier. They are an electric component, like resistors, capacitors, transistors, ...
As the name implies, their main use is in various types of amplifier circuits. A main use is in hardware based implementations of feedback loops, where they can be used as differential amplifiers and summation amplifiers.
2006-06-25 19:32:17 · answer #4 · answered by AnyMouse 3 · 0⤊ 0⤋
In short they are correct lol. OP amp takes a very small voltage and converts it to a voltage high enough for output device to use such as valves pump relays ect.
2006-07-07 18:37:59 · answer #5 · answered by jjnsao 5 · 0⤊ 0⤋
operational amplifiers r differential amplifiers with large voltage gain
2006-07-07 02:12:16 · answer #6 · answered by Anonymous · 0⤊ 0⤋
You are so lazy Stan ~ do your work!!
2006-06-25 20:19:23 · answer #7 · answered by RealArsenalFan 4 · 0⤊ 0⤋