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Power Supply Pins: Op-amps require power to operate. They have positive and negative power supply pins (+V and -V) that provide the necessary power levels for the op-amp to function.
Output Pin: The output pin provides the amplified or manipulated signal based on the inputs. It's where the result of the op-amp's operation is obtained.
Offset Null or Offset Adjustment Pins: Some op-amps have offset null pins that can be used to adjust the output offset voltage. This is useful for minimizing any unwanted voltage offset in the output.
Frequency Compensation Pins: In some op-amps, additional pins are used for frequency compensation to ensure stable operation in high-frequency applications.
Balance or Trim Pins: These pins are used in op-amps that are intended to be used in bridge or differential amplifier configurations, where precise balance between inputs is necessary.
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Tell you something about op-amp?
An op-amp is a device with two inputs, one inverting and one non-inverting. The output goes to whatever value is needed to make the two inputs the same. This means that, typically, the output is connected to a feedback circuit back into the negative input. This is closed loop, negative feedback operation. Due to the high gain of the op-amp, this configuration makes performance, such as gain and bandwidth, easy to predict.
What happens when magnitude of Vcc and Vee of op-amp are different?
When the magnitude of Vcc and Vee of op-amp are different the op-amp produces waveforms equal in the size of each rail.
How can an op amp comparator circuit be used for converting sine to square wave?
The wording are confusing an op-amp is an op-amp a comparator is another animal. an op-amp can be used as square wave generator by overdriving it but the results are not desirable. However a comparator will be a switch on-off at the set level.
What are the ideal op-amp approximations?
Ideal op amp approximations: -no current goes into the positive or negative input of the op amp. -The open loop gain is infinite. -Voltage at positive input is the same as the negative input.
Why op-amp symbol is a triangle?
Because that is the accepted convention. The triangle is the symbol for an amplifier, be it a differential amplifier with two inputs, such as an op-amp, or be it single ended, such as a simple transistor. The triangle symbol is used to show a block diagram of something that might have multiple things inside it, which the op-amp does. It is not generally used to represent a simple transistor, unless you were showing a block diagram. The triangle symbol is also used in digital logic diagrams, to indicate buffers (again, amplifiers), or inverters.
When both the amplifiers are same in op-amp why one treat as positive and another as negative?
The op-amp operates as a bridge into a constant current sink, balancing the two inputs. The two inputs, while the same, are not connected the same, so one drives the ouput positive, and the other drives the output negative.
Which input terminal of op-amp has high impedance?
both are considered to be hi impedance inputs. If a sensor requires a high impedance in order to maintain accuracy, we usually connect that sensor to the positive (+) input terminal of the op-amp.
If both inputs of an op amp are connected to positive voltages what will the output be if the positive input has 7V and negative input has 5V?
It will be pegged to the positive rail. The only time the output of an op amp is between the rails is when the two inputs are equal, within the offset error of the op amp. You are describing an open loop condition and, unless there is a 2V offset error, the output will be pegged; in this case to the positive rail since the positive input is greater than the negative input. Also, the answer depends on whether or not the inputs are within range. If, for instance, the op amp used +/- 5V as its power, then the 7V input would be out of range, and the op amps behavior might be unpredictable. (It might lockup, it might be destroyed, etc.)
Tell you something about op-amp?
An op-amp is a device with two inputs, one inverting and one non-inverting. The output goes to whatever value is needed to make the two inputs the same. This means that, typically, the output is connected to a feedback circuit back into the negative input. This is closed loop, negative feedback operation. Due to the high gain of the op-amp, this configuration makes performance, such as gain and bandwidth, easy to predict.
Op-amp working principle characteristics?
1.You can see that A and B are inputs and C is the output. Whenever two inputs are given , the output is the difference of the inputs. So it is called as Operational Amplifier. 2.When one input is one or Inverting or minus and the other being plus, then the output will be negative.
What happens when magnitude of Vcc and Vee of op-amp are different?
When the magnitude of Vcc and Vee of op-amp are different the op-amp produces waveforms equal in the size of each rail.
How an op amp differs from a basic amp?
A basic, single transistor amplifier differs from an op amp: 1. The op amp has more gain 2. The op amp may have higher input resistance (so it loads the circuit less) 3. The op amp may have a lower output resistance (so it can drive larger currents) 4. The op amp likely has a lower frequency response (due to the high gain, unless you provide some sort of feedback loop) 5. The op amp is ridiculously complex compared to a simple amplifier 6. The op amp will require a positive and negative voltage (may be unnecessary with a single transistor amplifier)
Which characteristics of Op-Amp is responsible for virtual ground?
The main parameter responsible for virtual ground of an Op-Amp is Input Impedance . Generally , for an Op-Amp it is very high . So , we can conclude that the characteristics of an Op-Amp responsible for virtual ground is high input impedance .
Why feedback is used in op-amp?
Feedback in used in an op-amp to limit and control the gain. An op-amp, by itself, has very high gain, often more than 100,000. (A theoretical op-amp has infinite gain.) The external feedback loop forms a divider, more correctly a bridge, that is maintained in balance by the op-amp, giving the desired real gain.
What is LM312T?
op-amp
How can an OP-AMP be nulled?
op-amp can be nulled using offset voltage about +/- 1.5 mv to offset pins
What is use of 8th pin in op-amp?
This may vary from one op-amp to another, consult the datasheet.
