The 12-bit analog-to-digital converter (ADC) module in these devices support fast 12-bit conversions with single-ended inputs.
ADC features include:
- 12-bit output resolution at up to
1.68 Msps with greater than 11-bit ENOB
- HW averaging enables 14-bit conversion resolution at 105ksps
- Up to 10 external input channels
- Internal channels for temperature sensing, supply monitoring, and analog signal chain (interconnection with OPA, GPAMP, and others)
- Software selectable reference:
- Configurable internal dedicated ADC reference voltage of 1.4 V and 2.5 V (VREF)
- MCU supply voltage (VDD)
- External reference supplied to the ADC through the VREF+ and VREF- pins
- Operates in RUN, SLEEP, and STOP modes and supports triggers from STANDBY mode
Table 8-7 ADC0 Channel Mapping
| CHANNEL[0:7] |
SIGNAL NAME |
CHANNEL[8:15] |
SIGNAL NAME (1)(2) |
| 0 |
A0 |
8 |
A8 |
| 1 |
A1 |
9 |
A9 |
| 2 |
A2 |
10 |
– |
| 3 |
A3 |
11 |
Temperature Sensor |
| 4 |
A4 |
12 |
OPA0 output |
| 5 |
A5 |
13 |
OPA1 output |
| 6 |
A6 |
14 |
GPAMP output |
| 7 |
A7 |
15 |
Supply/Battery Monitor |
(1) Italicized signal names are internal to the SoC. These signals are used for internal peripheral interconnections.
(2) For more information about device analog connections see
Section 8.24.
For more details, see the ADC chapter of the MSPM0 L-Series 32-MHz Microcontrollers Technical Reference Manual.