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What is a 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).
Why Use the Integrated Voltage Reference?
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). Depending on the device, you can also use the voltage reference with other integrated peripherals such as the op amp and analog comparator.
External Voltage References
We have a range of external voltage references that you can use with MCUs in applications that require a higher degree of accuracy or stability than the integrated voltage reference can provide.
