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A HIGH-SPEED 3-BIT A/D CONVERTER IMPLEMEPTED ON THE B15K TRANSISTOR ARRAY

IP.com Disclosure Number: IPCOM000006420D
Original Publication Date: 1992-May-01
Included in the Prior Art Database: 2002-Jan-02

Publishing Venue

Motorola

Related People

Authors:
Richard H. Ong

Abstract

Most data detection systems use commercially avail- able 4-8 bit A/D converters which are high power and have limited bandwidths. For applications requiring less than 4 bits there are some A/D converters made from SSI components. Problems causing static sources of error with A/D converters include reference ladder resistor matching, comparator offset voltage matching, reference ladder parasitic resistance, and comparator metastable output states. Problems causing dynamic sources of error with flash converters include comparator delay mismatch, chip parasitics, aperture jitter, and front end bandwidth limitations. This invention is a single chip, high speed, fully temperature and power supply voltage compen- sated solution to the above problems.