A configuration about D/A convertoor has been described by means of a unified offset-voltage at zero point electronic analog switch which is able to overcome the difficulties in manufacturing the ordinary non-offset-voltage at zero point electronic switch and other disadvantages. This paper offers a way to achieve the above-mentioned configuration by using the Multicell Type Logic （DYL） Linear AND-OR Gate and other additional devices. The electronic switch

a key device

can be easily made at low cost. Its output resistance can be offset and its working speed can be very high. The experimental results of 8-bit Linear AND -OR Gate D/A convertor show: Linear error<±1/2L. S. B.

the setting time is about 5ns.The paper also analyses the output resistance of the DYL unified offsetvoltage at zero pointelectronic analog switch

the condition of making zero temperature coefficient and the work precision.