SAMA5D2 Series

66.9.4.2 Single-ended Mode (12-bit mode)

A single input voltage V_IN can be applied to selected pins, e.g., ADC0_AD0 or ADC0_AD1. The ideal code C_i is calculated using the following formula and rounding the result to the nearest positive integer.

The single-ended ideal code conversion formula is:

$C_{i} = \frac{4095}{V_{ADVREF}} \times V_{IN}$

For the other resolution defined by RES, the code C_i is extended to the corresponding resolution.

The table below is a computation example for the above formula, where V_ADVREF = 3V:

Table 66-33. Input Voltage Values in Single-ended Mode
Non-signed C_i	V_IN
0	0
2047	1.5
4095	3

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