floating inputs and outputs

[chanducs24]

hi..

can anyone tell about floating inputs and floating outputs? why they called so?
what do they do actually?

Thanks,
chandra.

 

[IanP]

Answers.com - What is the floating input in IC

:wink:

 

[ljxpjpjljx]

floating inputs and outputs means these ports not connected any other module , always we need to let floating inputs to combine to some constant value!

 

[ramanandn]

Floating outputs are not as much of a problem to you compared to floating inputs, which would need to be pulled up or down to a defined state.

 

[vivekrajeev]

Floating outputs are not as much of a problem to you compared to floating inputs, which would need to be pulled up or down to a defined state.

Hi why are floating inputs should not be there could some body tell the reason ???

 

[BradtheRad]

A disconnected input is prone to pick up static charges and ambient magnetic fields.

This includes 60 cycle hum. The output may be a 60 Hz square wave!

It can upset the operation of circuitry.

 

[vivekrajeev]

Can i get more information how it picks up charges can you direct me to some material please

 

[BradtheRad]

Can i get more information how it picks up charges can you direct me to some material please

An electroscope made from an FET with the gate not connected to anything:

https://www.eskimo.com/~billb/emotor/chargdet.html