Flashcards
Signal processing
Cards in this deck (14)
- 1What is a passive circuit?It has only passive components, so; resistors, capacitors, or
inductors (do not have their own source of power). - 2What is an amplifier?An amplifier creates an electrical output that is a function of its input.
It increases the amplitude of the input by drawing energy from an external source. - 3What is saturation?Saturation is the point where the amplifier can no long amplify the input signal.
- 4What is slew rate?Slew rate is the maximum rate at which an amplifier can respond to an abrupt change of input level.
- 5What is an active circuit?An amplifier that produces an electrical out that is a function of the input.
Increases input through external source. - 6What's a voltage amplifier?Voltage in, voltage out
- 7What is a current amplifier?Current in, current out
- 8What is a transconductance amplifier?Voltage in, current out
- 9What is a transresistance amplifier?Current in, voltage out
- 10What is the difference in impedance to avoid loading effect (reduction in signal)?Zout << Zin
Usually, a factor of 10 between impedance is comfortable. - 11What is bandwidth?The range of frequencies where gain can be considered constant (linear on a graph).
- 12What is cut-off frequency?The input where the signal power at the output has fallen by 3dBs.
- 13What is Gain-Bandwith Product (GBP)?The product of the (low-frequency) open-loop gain, A0 and the cut-off frequency, fc.
- 14Ideal open-loop voltage amplifier-Rin=infinte
-Rout=0
-A=infinte
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- Uni ENGR113/114 (Fundamental of Electronic Instrumentation) Flashcards on Signal processing, created by Lily Chapman on 12/05/2018.
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- Lily Chapman
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