06-23-2021, 02:13 AM
I'm testing a NTC Thermistor with analog input of COLB.
An NTC 103AT in series with a 10k resistor.
Both connected to +5V and input A1.
The voltage measured at input A1 is different from the calculated one (VA1 = 10k x 5/(RThermistor + 10k).
It seems that the A1 input impedance is low and influences the circuit.
Can you help me with that?
Thanks!
An NTC 103AT in series with a 10k resistor.
Both connected to +5V and input A1.
The voltage measured at input A1 is different from the calculated one (VA1 = 10k x 5/(RThermistor + 10k).
It seems that the A1 input impedance is low and influences the circuit.
Can you help me with that?
Thanks!