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Article: The analog/digital boundary needn't be a never-never land. (troubleshooting analog circuits, part 10) (technical)
- Article from:
- EDN
- Article date:
- September 28, 1989
- Author:
CopyrightCOPYRIGHT 1989 Reed Business Information, Inc. (US). This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Many classes of circuits are neither entirely analog nor entirely digital. Of course, as an analog engineer, I don't have a lot of trouble thinking of all circuits as analog. Indeed, when problems develop in circuits containing both analog and digital elements, finding a solution is more likely to require that you summon your analog expertise than your digital knowledge. Timers, D/A and A/D converters, V/F and F/V converters, and S/H circuits all fall right on the boundary line between the analog and digital worlds. Digital ICs have more than a few analog subtleties. And even multiplexers, which you may have thought of as purely analog, have some quirks that result ...