Prof. Yasser Mostafa Kadah – www.k-space.org BASIC ELECTRONICS PART 4: OPERATIONAL AMPLIFIER.

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Presentation transcript:

Prof. Yasser Mostafa Kadah – BASIC ELECTRONICS PART 4: OPERATIONAL AMPLIFIER

Recommended Reference  Medical Instrumentation Application and Design, 4 th ed., John G. Webster (ed.)

Ideal Op Amp Characteristics

Voltage Follower

Inverting Amplifier

Summing Amplifier

Noninverting Amplifier

Differential Amplifier  Disadvantage: Low input impedance

Instrumentation Amplifier  Advantage: High input impedance

Comparator

Logarithmic Amplifier  Output proportional to input logarithm

Integrator

Differentiator

Active Filters  Low-pass filter  High-pass filter  Band-pass filter  Combination of the two

Practical Characteristics of Op Amps  Gain-Bandwidth Product  Constant for any Op Amp  Slew Rate  Offset voltage  Drift  Noise

Example: 741 Op Amp

Example: LH6702 Wideband Op Amp

Assignments  Download and go through the data sheets of the practical Op Amps discussed and compare their characteristics.  Implement Op Amp circuits of your choice in the lab to test their performance.