The designer of hundreds of fundamental analog circuits, Williams has perfected the art of getting maximum performance from high-performance amplifiers and data converters. He spent 11 years at the Massachusetts Institute of Technology in Cambridge, teaching and researching analog circuit techniques to solve biochemical and biomedical problems. Concurrently, he served as a consultant to U.S. and foreign concerns and governments, specializing in analog circuits. Williams joined National Semiconductor Corp. in 1979 and continued his work with the company's Linear Integrated Circuits Group. In 1982, he joined Linear Technology Corp. as staff scientist. He holds that position to this day, still focusing on product definition, development, and support. Williams has also written more than 250 publications relating to analog circuit design.