Monolithic charge-transfer A/D converter

The growing utilization of microprocessors and digital LSI circuits In solid-state control systems is currently generating a considerable interest in the development of low-cost technology-compatible analog-to-digital converters. In this paper, the design and operation of a monolithic charge-transfer analog-to-digital converter is reviewed, and its application in a digital control system where It has been used for voltage, resistance, and capacitance measurement is described. Experimental results showing better than l-mV resolution capability (equivalent to 10-12 bits) are reported.