8-bit AVR® Analog and Comparator Voltage Reference
A voltage reference is a circuit that produces a known output voltage from a varying input. Voltage references are crucial for providing a stable reference for Analog-to-Digital Converters (ADCs) and Digital-to-Analog Converters (DACs). The Fixed Voltage Reference (FVR) or the Voltage Reference (VREF) peripherals in PIC® and AVR® microcontrollers (MCUs) are embedded in the device, allowing you to improve the performance of the integrated ADC and DAC peripherals without increasing your Bill of Materials (BOM).
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