EDN

Create a DAC from a microcontroller’s ADC

Few microcontrollers include a DAC. Although you can easily find an inexpensive DAC to control from your microcontroller, you can use unused peripherals instead of adding parts. Fortunately, you can ...
EDN

Make a DAC with a microcontroller’s PWM timer

Many embedded-microcontroller applications require generation of analog signals. An integrated or stand-alone DAC fills the role. However, you can often use PWM signals for generating the required ...
Electronic Design

Low-Ripple DAC Implementation

In an example DAC application using Actel’s CorePWM IP DirectCore in low-ripple DAC mode, PWM output is averaged to a varying dc voltage. At reset, the PWM duty cycle, or level out value, is 100% and ...