Carl Battjes

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Carl Battjes

Carl Robert Battjes (b. 30 December 1929 in Grand Rapids, MI – d. 28 April 2007 in Portland, OR) was a Tektronix engineer. In 1950 he joined the U.S. Air Force and trained as a fighter pilot flying F-84s. In 1958 he graduated from the University of Michigan with a bachelor's degree in electrical engineering, then moved to Silicon Valley where he worked at Sylvania while completing his master's in electrical engineering from Stanford in 1960.

Battjes had designed a 300 MHz transistor amplifier at Sylvania before he joined Tektronix in 1961 to work on high-speed amplifiers.

He invented the "ft doubler" amplifier topology that has a current gain of 2 even at the transit frequency of the transistors that are used in the circuit.

In 1971, Battjes left the portable oscilloscope group and joined the IC design group within Tektronix.

He took early retirement in 1983, then did consulting for the next 10 years as a registered professional engineer.

Tek Products

Products by Carl Battjes

Components by Carl Battjes

Model Class Description Designers Used in
155-0175-00 Monolithic integrated circuit broadband amplifier John Addis Wink Gross Carl Battjes 7904A 7912HB 7934 7104 R7103 7A29 7A29P 7F10 067-0587-02 067-0587-10 11A71 SCD1000 EG&G N-AM-173A
155-0207-00 Monolithic integrated circuit low-power 50 MHz vertical output amplifier Carl Battjes 5223
M116 Monolithic integrated circuit vertical and horizontal output amplifier Carl Battjes

Patents by Carl Battjes

Page Office Number Title Inventors Company Filing date Grant date
Patent US 3258765A US 3258765A Digital to analog converter Carl Battjes Sylvania 1963-01-23 1966-06-28
Patent US 3633120A US 3633120A Amplifier circuit Carl Battjes Tektronix Inc 1970-09-16 1972-01-04
Patent US 3868580A US 3868580A Bootstrapped amplifier Carl Battjes Tektronix Inc 1973-02-12 1975-02-25
Patent US 4039899A US 4039899A Geometry and focus correction circuit Carl Battjes Harvey Leon Golladay Michael Rieger Binoy Rosario Ken Schlotzhauer Tektronix Inc 1976-05-03 1977-08-02
Patent US 4236119A US 4236119A Monolithic wideband amplifier Carl Battjes Tektronix Inc 1978-09-11 1980-11-25
Patent US 5140198A US 5140198A Image canceling mixer circuit on an integrated circuit chip Don H. Atherly Carl Battjes Seiko Epson 1989-08-30 1992-08-18

Publications

  • "Who Wakes the Bugler?", in The Art and Science of Analog Circuit Design, Jim Williams (Ed.), July 1998. ISBN 978-0-7506-7062-3. → Google Books
  • "Short Pulse Technique of Adjusting Wideband Amplifiers", in Tekscope Vol. 3 No. 1 January 1971
  • ...

Links