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Questions and Answers
Operational amplifiers have zero offset voltage and zero bias current.
Operational amplifiers have zero offset voltage and zero bias current.
False
In the inverting amplifier circuit, the input signal comes into the positive (non-inverting) input of the op-amp.
In the inverting amplifier circuit, the input signal comes into the positive (non-inverting) input of the op-amp.
False
Operational amplifiers have infinite common mode gain.
Operational amplifiers have infinite common mode gain.
False
The output impedance of the inverting amplifier circuit is on the order of one ohm.
The output impedance of the inverting amplifier circuit is on the order of one ohm.
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Operational amplifiers have a practical limitation where the magnitude of their output voltage cannot exceed the power supply voltage.
Operational amplifiers have a practical limitation where the magnitude of their output voltage cannot exceed the power supply voltage.
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Signal conditioning is used to process the output signal from a sensor in a suitable form for the next stage of operation.
Signal conditioning is used to process the output signal from a sensor in a suitable form for the next stage of operation.
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Analog-to-Digital Converter (ADC) is an example of signal conditioning.
Analog-to-Digital Converter (ADC) is an example of signal conditioning.
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Signal conditioning only involves amplifying the output signal from a sensor.
Signal conditioning only involves amplifying the output signal from a sensor.
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The primary role of signal conditioning is to provide internal excitation and grounding.
The primary role of signal conditioning is to provide internal excitation and grounding.
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A piece of wire is an example of a signal conditioning module.
A piece of wire is an example of a signal conditioning module.
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Study Notes
Ideal Operational Amplifier Characteristics
- Zero offset voltage
- Zero bias current
- Infinite common mode gain
Inverting Amplifier Circuit
- Input signal enters the positive (non-inverting) input of the op-amp
- Output impedance of the circuit is approximately 1 ohm
Practical Limitations of Operational Amplifiers
- Output voltage cannot exceed the power supply voltage
Signal Conditioning
- Processes the output signal from a sensor into a suitable form for the next stage of operation
- Examples include Analog-to-Digital Converters (ADCs)
- Involves more than just amplifying the output signal from a sensor
- Primary role includes providing internal excitation and grounding
- A piece of wire is not an example of a signal conditioning module
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Description
Test your knowledge of signal conditioning and A/D and D/A converters in the context of sensors and instrumentation. This quiz covers topics such as processing output signals from sensors, amplification, interference removal, and linearization.
