VREF for ADC
The voltage reference module (VREF) contains a configurable voltage reference buffer
dedicated for the on-board ADC. The devices also support connection of an external
reference for applications in which higher accuracy is required.
VREF features include:
- 1.4V and 2.5V user-selectable
internal references. Same reference voltage will be selected for ADC and
COMP
- Internal reference supports full
speed ADC operation
- Support for bringing in an
external reference on VREF+ and VREF- device pins
- Requires a decoupling capacitor placed on VREF+ pin and VREF- pins for proper operation. See VREF specification section for more details
VREF for COMP
The voltage reference module (VREF) contains a configurable voltage reference buffer
dedicated for the on-board COMP. The devices also support connection of an external
reference for applications in which higher accuracy is required.
VREF features include:
- 1.4V and 2.5V user-selectable internal reference for COMP. Same reference voltage will be selected for ADC and COMP.
- Supports low power mode operation of COMP+VREF in standby mode.
- Support for bringing in an external reference on VREF+ and VREF- device pins.
- Requires a decoupling capacitor placed on VREF+ pin and VREF- pins for proper operation. See VREF specification section for more details.
For more details, see the VREF chapter of the MSPM0 L-Series 32MHz Microcontrollers Technical Reference Manual.