On 23/11/2011, at 11:01 AM, Paul Perry wrote: > > The electronic design was by Sergio Franco. > I highly recommend his book "Design with Operational Amplifiers and > Analog Integrated Circuits." http://userwww.sfsu.edu/~sfranco/Books.html Thanks Paul actually both those books mentioned on that page look really good, going by the detailed TOC. cheers Adam