hm_fa_da
Full Member level 5
Hello,
This is a schematic from Atmel for sampling 220V input voltage:
The resistors in the picture are in red rectangular, as you see there are 7 x 120K resistors in series !
why didn't they use less resistors ? for example 2 x 360K + 1 x 120K or any other combination with equal resistance but less counts of resistors ?!!!
is there any reason ?!
Regards.
This is a schematic from Atmel for sampling 220V input voltage:
The resistors in the picture are in red rectangular, as you see there are 7 x 120K resistors in series !
why didn't they use less resistors ? for example 2 x 360K + 1 x 120K or any other combination with equal resistance but less counts of resistors ?!!!
is there any reason ?!
Regards.