Подвязка для АЦП.

http://low-powerdesign.com/baker_addesign.htm
http://electronicdesign.com/article/ideas-for-design/improve-phase-margins-in-buck-converter-loop-compensation

http://radon.doolru.org.ua/index.php?option=com_content&view=section&layout=blog&id=13&Itemid=64&limitstart=176

http://www.analog.com/en/circuits-from-the-lab/CN0268/vc.html