The AD7581JNZ is a microprocessor compatible memory buffered Data Acquisition System on a monolithic CMOS chip. It consists of a 8-bit successive approximation A/D Converter, a 8-channel multiplexer, 8x8 dual-port RAM, three-state DATA drivers (for interface), address latches and microprocessor compatible control logic. The successive-approximation conversion takes place on continuous channel sequencing, basis using microprocessor control signals for the clock.