The synthesis of analog-to-digital, primary and secondary modular converters

Abstract

The paper considers a parametric principle of building modular converters on the basis of a number of the measuring devices. On the example of «absurd odometer» shows the approaches to the construction of primary converters and problems of their application in practice. The solution is offered to search for suitable physical phenomena. A new method for measuring the secondary conversion by the input voltage level translation to the level of output in proportion to the deduction for pi base. A linear increase in input voltage from 0 to the E, the output voltage of P/pi times varies linearly from 0 to the E, immediately goes to 0 when it reaches the level of E. When sampling at a frequency less than that of the signal spectrum is shifted from any Nyquist zone in the first (aliasing), which form the basis of the work under consideration modular ADC. The consistent division of the input signal level to the final allocation of the balance of the module is the most popular approach in the synthesis of pipelined ADC modular.