Intersil Corporation’s HI5800 is a new twelve bit sampling analog to digital converter which is a monolithic alternative to the many hybrid converters available in the present market. The converter is a completely self-contained subsystem with a sample and hold, a curvature corrected band-gap voltage reference, controller, a 7 bit flash converter, a 14 bit accurate D/A converter (DAC), wide-band gain amplifier, timing generator and I/O drivers. It is designed for applications where high speed and wide bandwidth are essential. It has a conversion time of ~200ns (5MHz) with a throughput rate of 330ns (3MHz). The 12 bit performance is guaranteed over temperature with no missing codes.