ANALOGUE-DIGITAL CONVERTER WITH SUCCESSIVE APPROXIMATIONS.

摘要

The analog-to-digital converter has a first stage in which a voltage to be converted (Vin) is applied to the input of a first comparator (2). The first comparator (2) delivers on a first digital output a first digital result (Bi) representative of the comparison between the voltage to be converted (Vin) and the reference voltage (Vref). The first digital output is connected to a computer (3) of a first intermediate voltage (V1). A second comparator (5) compares the first intermediate voltage (V1) with the reference voltage (Vref) and outputs a second digital result (Bi + 1) on a second digital output terminal. The second digital output terminal is connected to a second computer with a residual voltage depending on the voltage to be converted (Vin), first (Va) and second (Vb) and the first and second digital results (Bi, Bi + 1 ). The first calculator is formed by the second calculator.