Title :
An analog trimming circuit based on a floating-gate device
Author :
Säckinger, Eduard ; Guggenbühl, Walter
Author_Institution :
Electron. Lab., ETH, Zurich, Switzerland
fDate :
12/1/1988 12:00:00 AM
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;
Journal_Title :
Solid-State Circuits, IEEE Journal of
