Both 12-bit analog-to-digital converter (ADC) modules in these devices, ADC0 and ADC1, support fast 12-bit conversions with single-ended inputs and simultaneous sampling operation.
ADC features include:
- 12-bit output resolution at 4Msps with greater than 11 ENOB
- Hardware averaging enables 14-bit effective resolution at 250 ksps
- Up to 17 total external input channels with individual result storage registers
- Internal channels for temperature sensing, supply monitoring, and analog signal chain
- Software selectable reference:
- Configurable internal reference voltage of 1.4 V and 2.5 V (requires decoupling capacitor on VREF+ and VREF- pins)
- MCU supply voltage (VDD)
- External reference supplied to the ADC through the VREF+ and VREF- pins
- Operates in RUN, SLEEP, and STOP modes
Table 8-7 ADC Channel Mapping| CHANNEL[0:7] | SIGNAL NAME(2) | CHANNEL[8:15] | SIGNAL NAME (1)(2) |
|---|
| ADC0 | ADC1 | ADC0 | ADC1 |
|---|
| 0 | A0_0 | A1_0 | 8 | A1_7(3) | A0_7(3) |
| 1 | A0_1 | A1_1 | 9 | - | - |
| 2 | A0_2 | A1_2 | 10 | - | - |
| 3 | A0_3 | A1_3 | 11 | Temperature Sensor | - |
| 4 | A0_4 | A1_4 | 12 | A0_12 | Temperature Sensor |
| 5 | A0_5 | A1_5 | 13 | | |
| 6 | A0_6 | A1_6 | 14 | GPAMP output | GPAMP output |
| 7 | A0_7 | A1_7 | 15 | Supply/Battery Monitor | Supply/Battery Monitor |
(1) Italicized signal names are purely internal to the SoC. These signals are used for internal peripheral interconnections.
(2) For more information about device analog
connections please refer to
Section 8.23 .
(3) Note that channel 8 of each ADC can be sampled by the opposite ADC. Channel 8 of each ADC samples channel Ax_7 of the other ADC. Every ADC channel is available on a dedicated device pin.
For more details, see the ADC chapter of the MSPM0 G-Series 80-MHz Microcontrollers Technical Reference
Manual.