The supply rail normally powers a microcontroller’s voltage-reference source. In power-critical battery-operated applications, the constant drain, even of a few 10s of microamps, can be prohibitive.

Voltage references are available with fixed and adjustable reference voltage outputs. Adjustable output is set by a resistor divider connected to a reference pin. These references are either shunt ...

A voltage reference is an accurate, temperature-compensated voltage source that provides specific output voltage values, such as 1.225 V, 4.096 V, or 10.000 V. Voltage reference ICs can be either ...

If you got your start in electronics sometime after 1980 your first project might well have been to light up an LED. Microcontroller projects often light up an LED, too, and a blinking LED is ...