LTE Standard Module Series
EG915U_Series_Hardware_Design 49 / 81
Table 17: Pin Definition of ADC Interface
Table 21: Characteristics of ADC Interface
1. The input voltage of ADC should not exceed its corresponding voltage range.
2. It is prohibited to supply any voltage to ADC pin when VBAT is removed.
3. It is recommended to use resistor divider circuit for ADC application.
4. If input voltage of ADC interface is designed with a resistor divider circuit, the resistance value of the
external divider resistor must be less than 100 kΩ, otherwise the measurement accuracy of the
ADC will be reduced significantly.
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