I am having a bit of a hard time understanding the voltage read in the voltage divider that is being an input for an ADC to an NXP microcontroller, S32K118. Below is the schematic of the circuit.

[![schematic of the circuit][1]][1]


Where P1 and R1 represent an analogic temperature sensor, just for hardware debugging purposes.

The designed and the real values of each component are represented in the table below:

| Component| Design   | Real      |
|  :----:  |:------:  | :-----:   |
| P1       | 10k  Ohms| 9.4k  Ohms|
| R1       | 4.7k Ohms| 4.4k  Ohms|
| R2       | 15k  Ohms| 13.4k Ohms|
| R3       | 22k  Ohms| 21.9k Ohms|
| C1       | 100n F   | 100n F    |


According to the MCU (S32Kxx) datasheet, the ADC input impedance equivalency diagram is shown below:

[![ADC input impedance equivalency][2]][2]

As the signal from the sensor is updated at a very slow rate, I consider the signal being DC, therefore no current flows into the ADC pin and the voltage at the node (R1,R2 & R3) is the same as in the node (R3 & C1).

Then, calculating the voltage divider in both cases, which resistance of the potentiometer was changed from the minimum to the maximum, using the real values, I got the following values:

$$
Vout = \frac{(P1 + R1)}{(P1 + R1) + R2}{Vin}
$$

**V_{in}** = 5V

**Vout_{min}** = 1.23V

**Vout_{max}** = 2.45V

 
However, the values that I am reading  with the multimeter are:

**Vout_{min}** = 0.22V

**Vout_{max}** = 0.65V 

That makes no sense, I have checked all the tracks and components, and they are in order.

Am I missing some point that is leading to misunderstanding something?


  [1]: https://i.sstatic.net/mLYj0dHD.png
  [2]: https://i.sstatic.net/b6Lm2gUr.png