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Chapter 3

Operational Amplifiers

Amplificadores Operacionais
Amplificadores Operacionais
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 ...
Características do OpAmp
Características do OpAmp
Consider the equivalent circuit model of an operational amplifier. The output section consists of a voltage-controlled source in series with the output ...
Amplificadores operacionais inversores e não inversores
Amplificadores operacionais inversores e não inversores
The inverting amplifier connects the input voltage through a resistor to the inverting terminal, grounds the non-inverting terminal, and has a feedback ...
OpAmps de soma e diferença
OpAmps de soma e diferença
A summing amplifier, or an adder, uses an operational amplifier to combine multiple input signals into a single output. Conversely, a difference ...
Características dos amplificadores operacionais práticos
Características dos amplificadores operacionais práticos
A difference amplifier containing a common and a difference-mode signal ideally amplifies only the difference-mode signal. However, in practical circuits, ...
Integrador e Diferenciador
Integrador e Diferenciador
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 ...
Amplificadores operacionais em cascata
Amplificadores operacionais em cascata
Operational Amplifiers can be connected in a cascade - one after another in linear sequence without altering their input-output relationships due to their ...
Amplificador de Instrumentação
Amplificador de Instrumentação
In an electrocardiography machine, electrodes detect small electrical changes on the skin resulting from heart muscle depolarization during each ...
Exemplo de design: console de mixagem vintage
Exemplo de design: console de mixagem 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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