A gray-code current-mode ADC for mixed-mode cellular computer

Abstract

Analog to digital converters are used in extremely many applications to convert real world signals into digital words. The converter presented in this paper, is designed for a cellular nonlinear network type system, where A/D converters are included in each cell to transform the gray scale value to be stored in a 6 bit SRAM memory bank. Because of this, the converter structure should have small silicon area, low power consumption and easy controlling. Presented ADC fulfills these requirements.