An analog trimming circuit based on a floating-gate device

Author

Säckinger, Eduard ; Guggenbühl, Walter

Author_Institution

Electron. Lab., ETH, Zurich, Switzerland

Volume

23

Issue

6

fYear

1988

fDate

12/1/1988 12:00:00 AM

Firstpage

1437

Lastpage

1440

Abstract

The application of floating-gate elements as adjustable components in analog CMOS circuits such as amplifiers is proposed. A simple trimming circuit based on this principle and delivering a differential current is described. Experimental results of a differential difference amplifier (DDA) containing two such circuits are given. After trimming, an offset voltage of 10 μV and a nonlinearity of 0.1% are achieved. Other analog circuits based on floating-gate elements like adjustable voltage sources and transconductances have been realized. Because they can be electrically reprogrammed, a wide range of applications, for example in neural nets, are possible

Keywords

CMOS integrated circuits; analogue circuits; differential amplifiers; neural nets; analog CMOS circuits; analog trimming circuit; differential current; differential difference amplifier; floating-gate device; neural nets; transconductances; voltage sources; Artificial intelligence; CMOS analog integrated circuits; CMOS technology; Capacitors; Character generation; Circuit testing; Differential amplifiers; Dynamic programming; Nonvolatile memory; Voltage;

fLanguage

English

Journal_Title

Solid-State Circuits, IEEE Journal of

Publisher

ieee

ISSN

0018-9200

Type

jour

DOI

10.1109/4.90044

Filename

90044