Kunal_Gupta:
Any ideas on how to build a voltage divider that can step down 5V or 3.3V exactly to 0.1V, 0.2V, 0.3V, 0.4V, 0.5V & 0.6V.
From a fixed voltage - that's easy enough.
But you have a sensor with some 'sensor output voltage range', so to differentiate the sensors on one pin without some additional 'identify vs. sense' switching would need e.g.
Sensor1 Output voltage range 0.0 to 0.4V
Sensor2 Output voltage range 0.5 to 0.9V
Sensor3 Output voltage range 1.0 to 1.4V
...
This is possible with 3 resistors, see this page for a calculator
An example:
Diagram:
Yours,
TonyWilk
P.S. But then your AtoD range is severely limited of course.