Free Simple Circuit Diagram
This is a circuit of Low- and High-Pass Single Supply Sallen-Key Filter. This circuit uses popular second-order topologies, the Sallen-Key topology, because it has some advantages such as just need one a single op amp and four passive components, and it is cheap topology. Besides that, this topology is very easy to tune the frequency. However, it difficult to change […]
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This is Low-, Band-, and High-Pass Single Supply Multiple Feedback Filter circuit. This circuit uses MFB topology, which has some advantages and disadvantages. The advantages of MFB topology are low cost, easy to implement and very versatile. The disadvantage of MFB topology is it has complex calculation. This circuit uses a unity gain Butterworth, so the circuit will give a […]
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This is a differentiator circuit. This circuit can be used to do differential operation. There are two differentiator, the are true differentiator and practical differentiator. The true differentiator is extremely susceptible to high frequency noise due to the increasing AC gain at the rate of 6 dB per octave. Here is the circuit of true differentiator, practical differentiator and Differentiator […]
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This is a circuit of difference amplifier. This circuit is an inverting amplifier that allows the subtraction of two voltages and that is the summing amplifier’s complement.This circuit also allows the the cancellation of a signal common to the two inputs.This circuit can be used as a computational amplifier, in in rejecting a common mode signal or in making a […]
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