Lars Wanhammar was born in Vansbro, Sweden, on August 19, 1944. He has received the following degrees: Teknisk magister (teknisk fysik) in 1970, civilingenjör in 1980, teknisk doktor in 1981, and docent in 1986, in electrical engineering from Linköping University, Sweden.
During 1964-1970 he worked at Televerket (Royal Swedish Telephone Board), Division of Communication and during 1970-1971 as a lecturer at the technical college in Norrköping. Since 1971 he has been working at Linköping University, Department of Electrical Engineering, Division of Applied Electronics, as Assistant, Research Assistant, and from 1982 as Associate Professor (universitetslektor) and from 1997 as full Professor and head of the Division of Electronics Systems, at the Department of Electrical Engineering, Linköping University, Sweden. From 2011 he is currently Professor Emeritus.
In addition, from 1995 to 2004 he worked as Adjunct Professor at the Norwegian Institute of Technology (NTNU) at the departments of Physical Electronics and Telecommunications.
His research interests are primary theory and design of digital signal processing and telecommunication systems, particularly analog and digital filters, and discrete transforms as well as computational properties of DSP algorithms, bit-serial, digit-serial and distributed arithmetic, CAD tools, and globally asynchronous locally synchronous techniques for ULSI.He is the author, or co-author of five books in analog and digital filters, one in parallel processing in industrial real-time applications, and one in DSP integrated circuits.