I'm used to always use 100 nF (0.1 uF) ceramic capacitors as bypassing capacitors for ICs.
However, in the LM35 datasheet I find two different figures:
The circuit above I need, since I probably want a longer cable between my microcontroller and the LM35 sensor, so I would need a 0.01 uF electrolycal capacitor.
This circuit I don't need, but somehow a 0.01 uF ceramic capacitor is used.
I Also need negative temperatures, and here no bypass capacitor is used.
Questions, if I want e.g. 1 m wires between the LM35 and the microcontroller, should I;
- Use a capacitor at all (I think I need since figure 13 shows it).
- Should it be ceramic or electrolytical, or doesn't it matter?
- Should it be 0.01 uF, or 1 uF?
I am also interesting in some reasoning behind these different capacitor types/values.