An area-speed efficient method for current mode analog to digital converters

A novel method for converting analog information to digital in current mode is proposed. This configuration is efficient in terms of speed and area consumption. It is designed for a 4-bit conversion in particular, although it can be easily expanded for more number of bits. For a 4-bit approach, the proposed Analog to Digital Conversion Method (ADCM) provides the conversion of each two bits at the same time resulting in a fast conversion. In addition, its specific architecture occupies a small area. The proposed ADCM is suitable for current mode applications.