ADC for programmable logic uses one capacitor

ADC for programmable logic uses one capacitor

This Design Idea describes a method for adding a low-end ADC to a single programmable- logic I/O pin. The circuit charges a capacitor through a resistor while measuring the time to charge the capacitor to a certain voltage.

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Bibliographische Detailangaben
Veröffentlicht in:EDN Design Ideas 2009-11, Vol.54 (21), p.46-48
Hauptverfasser: Thoné, Jef, Puers, Robert
Format: Artikel
Sprache:eng
Online-Zugang:Volltext
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Beschreibung
Zusammenfassung:This Design Idea describes a method for adding a low-end ADC to a single programmable- logic I/O pin. The circuit charges a capacitor through a resistor while measuring the time to charge the capacitor to a certain voltage.
ISSN:0012-7515