Audioengine’s new headphone amp and DAC is a real pocket rocket

The HXL is a premium, double-DAC design with a 60-step volume control, simple LED display, and simple usability. It's also ...
EDN

Split a voltage rail using an op amp to create a virtual ground

There are various reasons why you might need to split a voltage rail in your design. Perhaps the design contains a sensor or an IC that requires a bipolar supply, or you need to make the best use of ...