All-MOS charge redistribution analog-to-digital conversion techniques. I
McCreary, J.L.; Gray, P.R.
Solid-State Circuits, IEEE Journal of
Volume 10, Issue 6, Dec 1975 Page(s): 371 - 379
Digital Object Identifier  
Summary:Describes a technique for performing A/D conversion compatibly with standard single-channel MOS technology. The use of a binary weighted capacitor array to perform a high-speed, successive approximation conversion is discussed. The technique provides an inherent sample/hold function and can accept both polarities of inputs with a single positive reference. The factors limiting the accuracy and conversion rate of the technique are considered analytically. Experimental results from a monolithic prototype are presented; a resolution of 10 bits was achieved with a conversion time of 23 μs. The estimated die size for a completely monolithic version is 8000 mil/SUP 2/.

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