> 3.10.5 | Analog-to Digital Converter (ADC)

> The two balanced analog inputs are used for measuring external DC voltages in a range of 0V to 5.0V.
> Note: Only positive differential voltage can be handled because of the input requirement of ADC.

> Table 16: | ADC signal description

> Signal name | Pin | Description
> ADC1_IN_N | 22 | Negative voltage
> ADC1_IN_P | 21 | Positive voltage (must be more positive than ADC1_IN_N)
> ADC2_IN_N | 10 | Negative voltage
> ADC2_IN_P | 9 | Positive voltage (must be more positive than ADC2_IN_N)

> Figure 15: ADC balanced amplifier
> Use the command AT^SRADC described in [1] to configure the analog inputs and to get the measurement results.
> Note: It is necessary to recalculate measurement results because an amplifier is used to scale down the ADCx_IN input voltage of the TC65 Terminal (5V) to the ADCx_IN input voltage of the in-built TC65 module (2.4V).
> Two parameters (determined and stored by factory) have to be used for offset compensation and for consideration of gain and tolerances. Use the command AT^SAADC described in [1] to read out the required parameters:
> <ofsx>: Offset
> <ampx> : Amplification factor (Gain*4096) x=1 for Input 1 or 2 for input 2
> To recalculate the exact voltages [mV] measured at the ADCx_IN input use the following equation:
> Value[mV] = (<value> from AT^SRADC - <ofsx>) * <ampx> / 4096