High-speed, high-resolution and low-consumption analog/digital converter with single-ended input

A binary-coded weighting the first array of sampling capacitor (standard ') and capacitor is connected; the first common node circuit (NB+) and is substrates to charge is substrates of the change-over signal seat (Gnd) voltage (p4) input terminals, and has a choices and secondary differential a terminal (Vrefp, Vrefm) are according to BAR and technology. At the same time, equal to the first array, and port and second node (NB-) connected second array (10B ') and capacitor with the selecting connected (Gnd) and low voltage differential terminal (Vrefm). Two nodes are connected comparer (23 ') are input. The logical unit (17 ') to preset timing control program two arrays the connection of capacitor, and a comparator (23 ') function of output. Although the converter is a single-end output, wherein the behaviour is similar to a a converter of differential input 20, therefore comprising a very good interference rejection to noise. Additionally, wherein no need the capacitor or a special positive keen. Therefore, wherein the low-power consumption and high speed, of which one of a part of integrated circuits' very small area.