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Successive approximation logarithmic A/D conversion using charge redistribution techniques

✍ Scribed by C. C. Lefas


Publisher
John Wiley and Sons
Year
1987
Tongue
English
Weight
463 KB
Volume
15
Category
Article
ISSN
0098-9886

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✦ Synopsis


The present papei describes a logarithmic A/D converter (LADC) working with the charge redistribution principle. The LADC uses a serial and a parallel capacitive attenuator and is suitable for manufacturing o n a single chip. Formulae for the values of the capacitors are given in terms of the base of logarithm used. This LADC uses logarithmically spaced voltage comparison levels and therefore eliminates the use of logarithmic analogue signal conditioning circuits.