Title :
A novel fast high resolution ADC-structure
Author :
Viehböck, F. ; Fürst, H.
Author_Institution :
Tech. Univ., Vienna, Austria
Abstract :
A novel structure of a high sampling rate, high resolution ADC is described. In principle, it consists of a set of window amplifiers at uniformly spaced bias levels, each amplifying a portion of the actual input voltage range for subsequent conversion by a fast parallel ADC of corresponding resolution. A window amplifier can be realized by means of a differential amplifier with appropriate current feedback. To reduce the influence of the Miller capacity, a cascode differential amplifier is used in order to keep the ADCs input capacitance low
Keywords :
analogue-digital conversion; differential amplifiers; A/D convertor; cascode differential amplifier; current feedback; fast parallel ADC; high resolution ADC-structure; high sampling rate; input capacitance; window amplifiers;
Conference_Titel :
Circuit Theory and Design, 1989., European Conference on
Conference_Location :
Brighton
