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Chapter 3

Operational Amplifiers

Amplificatori operazionali
Amplificatori operazionali
The temperature detector fire alarm system consists of a thermistor sensor that initiates a small current flow in case of a fire. This signal is too weak ...
Caratteristiche dell'OpAmp
Caratteristiche dell'OpAmp
Consider the equivalent circuit model of an operational amplifier. The output section consists of a voltage-controlled source in series with the output ...
OpAmp invertenti e non invertenti
OpAmp invertenti e non invertenti
The inverting amplifier connects the input voltage through a resistor to the inverting terminal, grounds the non-inverting terminal, and has a feedback ...
Somma e differenza degli amplificatori operazionali
Somma e differenza degli amplificatori operazionali
A summing amplifier, or an adder, uses an operational amplifier to combine multiple input signals into a single output. Conversely, a difference ...
Caratteristiche degli amplificatori operazionali pratici
Caratteristiche degli amplificatori operazionali pratici
A difference amplifier containing a common and a difference-mode signal ideally amplifies only the difference-mode signal. However, in practical circuits, ...
Integratore e differenziatore
Integratore e differenziatore
Consider a car with cruise control using an op amp circuit to maintain a constant speed. This circuit employs the function of an op amp as an integrator ...
Amplificatori operazionali in cascata
Amplificatori operazionali in cascata
Operational Amplifiers can be connected in a cascade - one after another in linear sequence without altering their input-output relationships due to their ...
Amplificatore per strumentazione
Amplificatore per strumentazione
In an electrocardiography machine, electrodes detect small electrical changes on the skin resulting from heart muscle depolarization during each ...
Esempio di design: Console di mixaggio vintage
Esempio di design: Console di mixaggio vintage
A sound engineer at a music company faces a challenge. The output from their studio's newly acquired vintage mixing console is insufficient for modern ...
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