STMicroelectronics AN3248 Application Note page 4

List of figures
List of figures
Figure 1. Sensor output connection to COMP2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 2. Sensor output connection to COMP1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 3. Power consumption in an analog voltage monitoring application . . . . . . . . . . . . . . . . . . . . . 6
Figure 4. COMP2 configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 5. Analog comparators combined in window mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 6. Analog watchdog during stop mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 7. COMP2 with output redirection feature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 8. Pulse width measurement: COMP2 output redirection to timer . . . . . . . . . . . . . . . . . . . . . 11
Figure 9. PWM signal control: COMP2 output redirection to timer . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 10. RC network connection for capacitance measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 11. Capacitance measurement using COMP2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 12. Connecting an LDR resistor to an STM32L15xxx device . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 13. Comparator output behavior versus light intensity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4/19 Doc ID 17758 Rev 1
AN3248