First 12-Bit, 1-MHz Hybrid A/D Converter with Track/Hold

HAS-1201 Is Complete in 46-Pin Hermetically Sealed DIP; Two-Step Flash Unit is Ready to Go, Needs only Power and Encode Commands

As the preceding article has noted, track/hold is essential to accurate conversion at high sampling rates, even with "flash" converters, because of the converter's sample-delay variations. A good track/hold stage, with low aperture jitter, freezes the rapidly varying input signal, converting it momentarily to a "dc" signal, long enough for a fast converter to deal with it. Read full article