Quectel EG915U Series Hardware Design page 50

Table 17: Pin Definition of ADC Interface
Pin Name
ADC0
ADC1
Table 21: Characteristics of ADC Interface
Name
ADC0 Voltage Range
ADC1 Voltage Range
ADC Resolution
NOTE
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.
EG915U_Series_Hardware_Design
Pin No. I/O
24 AI
2 AI
Min. Typ.
0.1 -
0.1 -
- 12
Description
General-purpose ADC
interface
Max.
VBAT
VBAT
-
LTE Standard Module Series
Comment
A 1 kΩ series resistor
is required for use.
If unused, keep it
open.
Unit
V
V
bits
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