Signal Conditioning

Differential Instrumentation Amplifier Transducer Bridge

Differential Instrumentation Amplifier Transducer Bridge: Figure 14.25 shows a simplified circuit of a Differential Instrumentation Amplifier Transducer Bridge. In this circuit a resistive transducer (whose resistance changes as a function of some physical energy) is connected to one arm of the bridge. Let RT be the resistance of the transducer and ΔR the change in …

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Op Amp Comparator Circuit

Op Amp Comparator Circuit: Op Amp Comparator Circuit – In the opamp applications discussed so far, the amplifiers use negative feedback. Under normal conditions, when negative feedback is used in such a circuit, the amplifier output voltage takes on values between the positive and negative saturation limits. The amplifier has a high gain and negative …

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Differentiator using Op Amp

Differentiator using Op Amp: A Differentiator using Op Amp circuit that performs the mathematical operation of differ­entiation. It produces an output voltage proportional to slope of the input volt­age. A common application of a differentiator is the detection of the leading and trailing edges of rectangular pulse. Figure 14.11 shows a basic CR differentiator. If …

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Integrator using Op Amp

Integrator using Op Amp: An Integrator is a circuit that performs the mathematical operation of integra­tion because it produces an output voltage that is proportional to the integral of the input. The Integrator using Op Amp is shown in Fig. 14.9. A common application is to use a constant input voltage to produce a ramp …

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Negative Feedback Op Amp

Negative Feedback Op Amp: Negative Feedback Op Amp – The Inverting Amplifier configuration is shown in Fig. 14.8. The input signal is applied to the inverting terminal. The amplified inverted output is fed back to the inverting input through the resistor RF. The signal fed back is proportional to the output voltage, feedback takes place …

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