A mixed-signal array processor with early vision applications

Author

Martin, David A. ; Lee, Hae-Seung ; Masaki, Ichiro

Author_Institution

Microsystems Technol. Lab., MIT, Cambridge, MA, USA

fYear

1997

fDate

5-8 May 1997

Firstpage

275

Lastpage

278

Abstract

A programmable analog arithmetic circuit which can perform addition, subtraction, multiplication, and division at 7 bits of resolution is presented. This circuit is used as the ALU for a mixed-signal array processor designed for early vision applications. The analog arithmetic circuit enables the processor to operate with the low power and low area of a dedicated analog circuit while retaining the flexibility of a digital processor. The processor was tested with an edge detection algorithm and a sub-pixel resolution algorithm. A 1 cm square array of the mixed-signal processor cells in 0.8 μm CMOS with a 5 V power supply would dissipate 1 W at 420 MIPS

Keywords

CMOS analogue integrated circuits; analogue processing circuits; arithmetic; edge detection; image processing; image processing equipment; mixed analogue-digital integrated circuits; 0.8 micron; 1 W; 420 MIPS; 5 V; 7 bit; ALU; addition; division; early vision applications; edge detection algorithm; low power operation; mixed-signal array processor; multiplication; programmable analog arithmetic circuit; sub-pixel resolution algorithm; subtraction; Circuit testing; Digital arithmetic; Fabrics; Flexible printed circuits; Instruments; Laboratories; Pixel; Registers; Switches; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Custom Integrated Circuits Conference, 1997., Proceedings of the IEEE 1997

Conference_Location

Santa Clara, CA

Print_ISBN

0-7803-3669-0

Type

conf

DOI

10.1109/CICC.1997.606629

Filename

606629