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A high impedance state is a state where the component hardly draws any current at all.
In most cases it also mean that the component is more or less turned off.
In memory chips, it will keep the memory but no longer accept commands for changing or reading memory content.
In portable measuring devices, it is a state where electronics turn itself off to conserve battery power.
I hope this was helpful.
Regards.
Wiki User
∙ 14y ago
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Why emitter follower preferred to transforms as a impedance matching?
because it has high input impedance and low output impedance
Definition of low impedance medium impedance and high impedance?
For instance: A microphone rated at 150 ohms to 300 ohms is considered low impedance. About 600 to 2 000 ohms is medium impedance, and 10 000 ohms or more is high impedance.
Compared to bipolars FETs have-a high input impedance b low input impedance c same input impedance?
FET s have very high input impedance when compared with Bipolar transistors.
Is 5000 ohm is high impedance?
Relative to 500 ohms 5000 ohms is a high impedance. It is ten times higher.
Which is better high input impedance or low input impedance and why?
That depends on the output impedance. In electronic we use voltage bridging, that is a relative low output impedance to a higher input impedance. Usualy the input impedance is more than ten times higher then the output impedance. An input impedance is called also a load impedance or an external impedance. An output impedance is called also a source impedance or an internal impedance.
When does ALE float to its high-impedance state?
These pins are not at their high-impedance stateduring a hold acknowledge.
In a multistage amplifier input impedance is high and output impedance is low justify the statement?
no. input impedance is low & output impedance is high
State the application of RC coupled amplifier?
To increase the power gain ,high input impedance,low output impedance,and increase the weaken signal
Why emitter follower preferred to transforms as a impedance matching?
because it has high input impedance and low output impedance
What is the register?
It is a TRI State (3 state)Register (TRISA, TRISB etc)Output HighOutput LowInput (High Impedance)
Definition of low impedance medium impedance and high impedance?
For instance: A microphone rated at 150 ohms to 300 ohms is considered low impedance. About 600 to 2 000 ohms is medium impedance, and 10 000 ohms or more is high impedance.
What is the TRIS register?
It is a TRI State (3 state)Register (TRISA, TRISB etc)Output HighOutput LowInput (High Impedance)
Compared to bipolars FETs have-a high input impedance b low input impedance c same input impedance?
FET s have very high input impedance when compared with Bipolar transistors.
Definition of low impedancemedium impedance and high impedance?
There is no precise definition, but for instance: A microphone rated at 150 ohms to 300 ohms is considered low impedance. About 600 to 2 000 ohms is medium impedance, and 10 000 ohms or more is high impedance.
What are the dc characteristics of an OP-AMP IC 741?
High gain high input impedance low output impedance
Is 5000 ohm is high impedance?
Relative to 500 ohms 5000 ohms is a high impedance. It is ten times higher.
Do you have high impedance test light?
no
