Pulse Modulation A/D Converter 780435

The mechanization of a single chip CMOS analog to digital converter is described using a pulse width modulator technique. A detailed block diagram is presented as well as important circuit considerations. Although the main objective was the integration of a 3 1/2 digit volt meter on a single monolithic device, the application of the technique to descrete solutions working in conjunction with microprocessors is briefly explored.In conclusion, the finished product, a 3 1/2 digit digital volt meter chip is presented briefly as an example of the practicality of the pulse width modulation technique.


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