Looking to maximize energy efficiency in your designs?
Here’s how Microchip’s PIC18-Q71 family makes it easier with the Analog Peripheral Manager (APM).
Key Highlights
- The APM in the PIC18-Q71 series enables low-power applications by allowing analog peripherals (e.g., ADC, CMP, DAC, and OPA) to be independently toggled on and off without waking the CPU, ideal for periodic sensor readings.
- By using the APM and Sleep modes, power consumption can be drastically reduced, prolonging battery life in portable devices and enhancing efficiency in low-power systems.
Application Walkthrough
- Basic Mode: Continuous monitoring results in the highest power draw (~1.25mA).
- APM-Enabled Mode: APM’s toggling capability cuts power usage down by ~3x, showing an average draw of ~406µA.
- APM + Sleep Mode: Sleep mode combined with APM delivers optimal power savings, lowering current usage to ~13.8µA—over 90x less than continuous monitoring.
Results
This not only saves power but supports programmable intervals for activating analog peripherals, allowing efficient, periodic data readings without CPU intervention.
For more details on implementing APM with PIC18-Q71 and maximizing efficiency in your designs, check out the full application note