A floating gate CMOS signal conditioning circuit for nonlinearity correction


Journal Article

A high-speed signal conditioning circuit is presented that can be programmed for correction of nonlinearity in a sensor signal processing system. The function of the circuit is based on piecewise linear principles. Post-fabrication programming to adapt to existing nonidealities is done with floating gate devices fabricated in standard technology. Modeling of the sensor nonideality is not required. The circuit is a voltage-to-current converter with an input range of the full power-supply voltage swing. In a 12-module implementation in 2-μm CMOS technology less than 0.5% error over rail-to-rail input range and a speed of 10 MHz were achieved. The circuit is useful where a signal from a sensor with nonlinearity and high variation in its parameters has to be conditioned for further processing. © 1993 Kluwer Academic Publishers, Boston.

Full Text

Duke Authors

Cited Authors

  • Thomsen, A; Brooke, MA

Published Date

  • July 1, 1993

Published In

Volume / Issue

  • 4 / 1

Start / End Page

  • 21 - 29

Electronic International Standard Serial Number (EISSN)

  • 1573-1979

International Standard Serial Number (ISSN)

  • 0925-1030

Digital Object Identifier (DOI)

  • 10.1007/BF01240676

Citation Source

  • Scopus