conversion time

Recurrent Logarithmic Analog-Digital Converters With a Constant Logarithm Base

In this work, a new conversion method is proposed, which makes it possible to implement recurrent logarithmic analog-to-digital converters (LADCs) with a constant base of the logarithm $(\zeta)$, in which the reference voltages are formed using a reference voltage divider composed of identical $L-$shaped links of resistors $R-R^{\prime \prime}$ and additional resistor $R^{\prime}$, and the values of the resistors are set according to the formulas
$R^{\prime}=\frac{\zeta}{1-\zeta} \cdot R$ and $R^{\prime \prime}=\frac{\zeta}{(1-\zeta)^2} \cdot R$.

FEATURES OF IMPLEMENTATION OF RECURRENT LOGARITHMIC ADCs

This work is devoted to the study of the features of the implementation of recurrent logarithmic analog-to-digital converters (LADC). The general principles of construction of recurrent LADCs are outlined. The implementation of recurrent LADC with a constant and a variable in the process of converting the base of the logarithm is considered. Generalized structural schemes of the recurrent LADCs are given, and their accuracy and speed of operation are evaluated.