Adc Interfaces - Quectel BG95 Series Hardware Design

NOTE
It is recommended to reserve the above circuit design during application design.

3.16. ADC Interfaces

The module provides two analog-to-digital converter (ADC) interfaces but only one ADC interface can be
used for each time. AT+QADC=0 command can be used to read the voltage value on the ADC being
used. For more details about the AT command, please refer to document [2].
In order to improve the accuracy of ADC voltage values, the trace of ADC should be surrounded by
ground.
Table 22: Pin Definition of ADC Interface
Pin Name Pin No.
ADC0 24
ADC1 2
The following table describes the characteristics of ADC interfaces.
BG95_Hardware_Design
Figure 21: Reference Circuit of USB_BOOT Interface
Description
ADC0 and ADC1 cannot be used simultaneously. Currently only
ADC0 is enabled, and ADC1 will be enabled in the next hardware
design version.
LPWA Module Series
BG95 Hardware Design
51 / 80