David A. Johns was born in Ottawa, Ontario and attended primary (Pleasant Park Public School and Vincent Massey Public School) and secondary (Hillcrest High School) in Ottawa. In 1976, he went to the University of Toronto and graduated from Engineering Science (Electrical Option) in 1980. From 1980 to 1981, he worked as an applications engineer in the area of DTMF receivers in the semiconductor division of Mitel Corp. in Ottawa. He then went back to the University of Toronto to complete his M.A.Sc. degree with Prof. Sedra and graduated in 1983. From 1983 to 1985 he was an analog IC designer at Pacific Microcircuits Ltd., Vancouver, Canada. In 1985, he returned to the University of Toronto to complete his Ph.D. degree with Prof. Sedra and Prof. Snelgrove and graduated in 1989. Dr. Johns was hired as a lecturer in the fall of 1988 before he completed his doctoral work and became an assistant professor on July 1, 1989. His doctoral work focused on analog and digital adaptive filters including the development of an orthonormal structure for analog filters.
Since 1988, Prof. Johns has been with the University of Toronto where his is currently a full professor. He has ongoing research programs in the areas of analog integrated circuits, high-speed data communications, and signal processing resulting in more than 40 publications. He is a past associate editor for IEEE Trans. on Circuits and Systems, both Parts I and II and became an IEEE Fellow in 2000. He has been involved in numerous industrial short courses and spent a 1 year research leave with Brooktree Corp. in San Diego, CA in the area of high-speed digital communications. He has also consulted for a variety of companies including IBM, Lucent, Brooktree, and others. He is a co-founder (with K. Martin)of Snowbush Inc.. which is a Toronto based company specializing in microchip design.