I am making a regular old voltage divider. The Req is 602k ohms which results from 6 or so resistors. But I was thinking that using 1M resistor or something on that order would be more cheap. I don't have a problem decreasing the current but decreasing the number of resistors would save cost.
The reason I didn't do this is because I don't see people do that very often with input voltages greater than 10. Maybe I am wrong, but I thought that this may be because the tolerance on many smaller resistors together makes a more precise voltage division as opposed to using bigger (and less) resistors with the same tolerances. I could do the math for that and get a better idea but I feel there would probably be another factor I am missing so I might as well just ask on here. For my application, the resistors have a Vin max of 100V.