Product Info

LPWA Module Series
BG95 Series Hardware Design
BG95_Series_Hardware_Design 58 / 106
Table 23: Pin Definition of ADC Interface
Pin Name
Pin No.
I/O
Description
Comment
ADC0
24
AI
General-purpose ADC interface
Do not use ADC0 and
ADC1 simultaneously.
ADC1
2
AI
General-purpose ADC interface
The following table describes the characteristics of ADC interfaces.
Table 24: Characteristics of ADC Interfaces
1. ADC input voltage must not exceed 1.8 V.
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, and the divider resistor accuracy
should be no less than 1 %.
4. Do not use ADC0 and ADC1 simultaneously, as ADC1 connects directly to ADC0 inside the module.
3.18. GPIO Interfaces
The module provides nine general-purpose input and output (GPIO) interfaces. AT+QCFG="gpio"
command can be used to configure the status of GPIO pins. For more details about the AT command, see
document [2].
Parameter
Min.
Typ.
Max.
Unit
Voltage Range
0.1
1.8
V
Resolution (LSB)
64.979
μV
Analog Bandwidth
500
kHz
Sample Clock
4.8
MHz
Input Resistance
10
MΩ
NOTES