A CMOS 100 MHz digital oscilloscope point processor and time base integrated circuit

A 100-MHz, 1.5-μm CMOS point processor/demultiplexer and time base integrated circuit has been developed for use in a digitizing oscilloscope. The component uses a single +5-V supply, accepts standard, negative ECL (emitter-coupled logic)-level inputs, and contains 46000 devices on a 311-mil×325-mil die. Those aspects of the design that comprise novel or improved circuitry or design techniques are described