Title :
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
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;
Conference_Titel :
Custom Integrated Circuits Conference, 1997., Proceedings of the IEEE 1997
Conference_Location :
Santa Clara, CA
Print_ISBN :
0-7803-3669-0
DOI :
10.1109/CICC.1997.606629
