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 (ζ), in which the reference voltages are formed using a reference voltage divider composed of identical L−shaped links of resistors R−R′′ and additional resistor R′, and the values of the resistors are set according to the formulas
R′=ζ1−ζ⋅R and R′′=ζ(1−ζ)2⋅R.