Matthias Keller was born in Saarlouis, Germany, in 1976. He received his Diploma degree in electrical engineering from the University of Saarland, Saar- bru¨ cken, Germany, in 2003 and a Dr.-Ing. degree (summa cum laude) from the University of Freiburg, Germany, in 2010. From 2003 to 2009, he was a research assistant at the Fritz Huettinger Chair of Microelectronics at the University of Freiburg, Germany, in the field of analog CMOS integrated circuit design with an emphasis on continuous-time delta-sigma A/D converters. In 2009, he was awarded a tenured position as a research associate (“Akademischer Rat”). His research interests are analog integrated circuits based on CMOS technology, in particular delta-sigma A/D converters and patch-clamp readout circuits.