Introduction

1	Theoretical Background

1.1	Operation Amplifiers – General

2	Analysis of Operation Networks with Linear (Circuit) Elements

2.1	Inverting Amplifier

2.2	Non-Inverting Amplifier

2.3	Integrators with Operation Amplifiers

2.3.1

Inverting (Miller’s) Integrator

2.3.2

Actual Integrator Frequency Characteristics

2.3.3

Actual Integrator Transitional Characteristics

2.4	Differentiators

2.5	Harmonic Oscillators

2.5.1

Two-Phase Oscillator

2.5.2

Harmonic Oscillator from Physics Viewpoint

2.6	Recapitulation and Control Questions

3	Analysis of Operation Networks with Non-Linear (Circuit) Elements

3.1	Nonlinear Elements in Negative Feedback of Operation Amplifiers

3.1.1

Diode Limiters

3.1.2

Ideal Diode and Absolute Value Circuits

3.2	Comparators

3.3	Monostable Circuits with Operation Amplifiers

3.4	Recapitulation and Control Questions

4	Elaboration of Selected numerical Examples of the Abovementioned Mathematics

4.1

Wien Cell

4.2

B. Filter

4.3	Measurements with AC Non-Inverting Amplifier

Conclusion

"Maximum Input Voltage

This is the input voltage range for which the operation amplifier has its functional properties guaranteed. This value is equal to the supply voltage. In the case of higher supply voltage this value is not reached.

Maximum Power Loss

This means the performance loss which the operation amplifier system can “dissipate" in the form of heat to the surroundings without excessive overheating of the operation amplifier itself. This applies to accurately specified conditions (load capacity, power voltage). Operation amplifiers in plastic cases have lower maximum power loss. Overloading of an operation amplifier is manifested by poor function of the amplifier and extended overloading may result in the amplifier damage.

Working Temperature Range

This parameter must be monitored in the service instruments (measuring equipment).

Input Voltage (or Current) Unbalance

It mostly corrects by input of small voltage of negative or positive polarity between pins 1 – 5.
Input Current Unbalance

This is the difference between the currents passing through both inputs on condition that the output voltage equals to zero and requires correction with a compensation resistance in the non-inverting input in the value corresponding to the compensation resistances in the second input.

Idle Input Current

This is direct current (mean value) running between the input terminals of the op-amp and the ground, with zero input signal (the compensation method is to be determined by the manufacturer).

Thermal Drift of Input Voltage Unbalance

It is usually determined for the working temperature scope and means change in the input voltage unbalance caused by heating up (or cooling down) of the operation amplifier. The value is defined as the ratio of voltage change to the given temperature scale.

Thermal Drift of Input Current Unbalance

This applies under the same conditions as the input voltage unbalance with the only difference resting in the fact that in this case the input current changes in response to temperature.

2 Analysis of Operation Networks with Linear (Circuit) Elements

Linear operation network is a network with linear feedback circuit, i.e. circuit containing linear resistors, capacitors and exceptionally also inductors. The principle of superposition applies in the linear operation network, with the results of algebraic sum of all individual results of the source effects. The ideal operational equation of linear operation networks is also linear.

It must be taken into consideration that every linear network is also quasi - linear"

Tato práce obsahuje, vzorce, výpočty a schémata. Čistého textu v práci je cca 21,5 strany.