Схемы, платы, компоненты

Вроде уже упоминал об этом забавном трюке, но тут не нашёл. Повторюсь, если что. "Simple Sigma-Delta ADC" из LVDS-приёмника ПЛИС. http://www.latticesemi.com/~/media/LatticeSemi/Documents/ReferenceDesigns/SZ/SimpleSigmaDeltaADCDocumentation.pdf?document_id=35762
App. note FPGA-RD-02047 (ранее - RD1066):

The Simple Sigma-Delta Analog-to-Digital Converter Reference Design targets the implementation of an analog-to-digital converter in a Lattice CPLD or FPGA. This reference design supports the use of an external analog comparator device, or optionally an on-chip LVDS buffer in devices with differential LVDS input support. Implementing this reference design can eliminate the need for dedicated and expensive analog-to-digital circuits (ADC), power supply monitors, and/or transducers. The design can be implemented with few logic resources and is flexible enough to meet a variety of applications. The Simple Sigma-Delta ADC is an excellent choice for monitoring various sensors and power rails of a system.