In the world of smart locks, retrofits occupy a unique, useful space. They're cheaper than a full deadbolt replacement and fit over your current deadbolt to give it smart features -- not a bad deal, ...

A 16-bit (5+11) segmented digital-to-analog converter (DAC), based on a voltage mode R-2R topology that is able to derive high resolution and high performance, in terms of INL and DNL, and less area ...