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Voltage Sensors: 5V or 30V power supply .

thread240-484879

Voltage Sensors: 5V or 30V power supply .

Voltage Sensors: 5V or 30V power supply .

(OP)
Hi All,

I've been designing some test setups with voltage sensors and I found that many potentiometers and accelerometer can take a range of voltage supplies (5V to 30V). I'm curious as to if there is a significant benefit to using a high voltage supply (30V) or low voltage supply (5V)? So far, the only thing I can tell is that a high voltage reduces the required current and therefore the size of the wires (and maybe safety). But in the context of sensor performance (accuracy, noise, etc.), is there a reason for choosing a low or high voltage supply?

Thanks!

RE: Voltage Sensors: 5V or 30V power supply .

If the inputs/outputs can be scaled to the same voltage, then you have (generally) improved your noise immunity (at least to outside disturbances)... but most chips don't work that way.

Dan - Owner
http://www.Hi-TecDesigns.com

RE: Voltage Sensors: 5V or 30V power supply .

Typically, the wide supply range is merely a convenience for the user, so they don't have to buy a specific supply to get something working. People like commonality, so something that can operated at 5V or 28V would be preferable, since they only need to buy one part for two, or more, applications

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