SECONDARY A/D WANDER FOR THE USE OF DOUBLE MULTIPLEX WANDERS WITH COMMON SCRIPTIC APPROVAL ASSISTANCE.

摘要

A converter including an even and an odd digital-to-analog converter for converting digital signals from a successive approximation circuit and controlling the odd and even converters and the analog-to-digital converter device to alternate conversion by the even and odd converters. The odd and even converters operate in oppostie phases such that while one is in an acquisition phase the other is in a conversion phase. Each of the odd and even converters includes a separate coarse digital-to-analog converter and a common fine digital-to-analog converter. The control circuit resets the fine digital-to-analog converter during an initial portion of the conversion phase of each of the coarse digital-to-analog converters. In a two stage flash converter, the first stage includes a single analog-to-digital converter and the second stage includes a single digital-to-analog converter and alternatingly operating even and odd analog-to-digital converters.