Title :
A 16×16 nonvolatile programmable analog vector-matrix multiplier
Author :
Aslam-Siddiqi, Amer ; Brockherde, Werner ; Hosticka, Bedrich J.
Author_Institution :
Fraunhofer Inst. of Microelectron Circuits & Syst., Duisburg, Germany
fDate :
10/1/1998 12:00:00 AM
Abstract :
In this paper, we present a 16×16 analog vector-matrix multiplier with analog electrically erasable and programmable read-only memories (EEPROMs) used as nonvolatile storage for the weight matrix values. Each weight matrix value is stored in an EEPROM transistor as a change of the threshold voltage, and the same EEPROM transistor is used for the multiplication by utilizing the square-law characteristic of the metal-oxide-semiconductor field-effect transistor. This allows a very simple circuit for the multiplier array with a size of about 1×1 mm2. The vector-matrix multiplier has been fabricated in a 1,5-μm single-poly complementary metal-oxide-semiconductor/EEPROM technology and successfully tested
Keywords :
CMOS analogue integrated circuits; analogue multipliers; analogue storage; 1.5 micron; analogue EEPROM; metal-oxide-semiconductor field-effect transistor; multiplication; nonvolatile storage; programmable analog vector-matrix multiplier; single-poly complementary metal-oxide-semiconductor; square-law characteristic; threshold voltage; weight matrix values; Capacitors; Circuits; EPROM; FETs; Image storage; Nonvolatile memory; PROM; Programming profession; Silicon; Voltage;
Journal_Title :
Solid-State Circuits, IEEE Journal of
