sweethomela8
Member level 4
If I have 12 V going to a resistive divider series of (1.5MOhm) and parallel to ground (1.0MOhm), and I take that voltage divided output and route it to a pin...how much current is being driven to that pin?
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You are on the right track - input resistance can be seen as a perallel reistor to ground - see attached picture ..sweethomela8 said:What if the input resistance was 10.0k...how would it be calculated? Do you interpret input resistance as a parallel resistor to ground?
sweethomela8 said:.. to calculate the current into the pin, would it just be
12 V / total resistance?
total resistance = R1 + R2 || Input resistance
sweethomela8 said:How do you represent output resistance/impedance? Is that a series resistance?