STM32W108CBU6 STMICROELECTRONICS [STMicroelectronics], STM32W108CBU6 Datasheet - Page 133

• Manufacturer Part Number: STM32W108CBU6
• Description: High-performance, IEEE 802.15.4 wireless system-on-chip
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

STM32W108CB, STM32W108HB
Input
The analog input of the ADC can be chosen from various sources. The analog input is
configured with the ADC_MUXP and ADC_MUXN bits within the ADC_CFG register.
Table 16
Table 16.
1. Denotes bits ADC_MUXP or ADC_MUXN in register ADC_CFG.
Table 17
Table 17.
ADC0
ADC1
ADC2
ADC3
ADC4
ADC5
ADC1
ADC3
ADC5
GND
ADC_MUXn
ADC P input
10
11
12
13
14
15
0
1
2
3
4
5
6
7
8
9
shows the possible input selections.
shows the typical configurations of ADC inputs.
ADC inputs
Typical ADC input configurations
(1)
Analog source at ADC
ADC0
ADC1
ADC2
ADC3
ADC4
ADC5
No connection
No connection
GND
VREF/2
VREF
1V8 VREG/2
No connection
No connection
No connection
No connection
VREF/2
VREF/2
VREF/2
VREF/2
VREF/2
VREF/2
ADC0
ADC2
ADC4
VREF/2
ADC N input
Doc ID 16252 Rev 2
PB5
PB6
PB7
PC0
PA4
PA5
Internal connection Calibration
Internal connection Calibration
Internal connection Calibration
Internal connection Supply monitoring and calibration
ADC_MUXP
GPIO pin
0
1
2
3
4
5
1
3
5
8
ADC_MUXN
Analog-to-digital converter
9
9
9
9
9
9
0
2
4
9
Purpose
Single-ended
Single-ended
Single-ended
Single-ended
Single-ended
Single-ended
Differential
Differential
Differential
Calibration
Purpose
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