Patent ID: 7999713
Filing Date: 2011-08-16
Classification: H03M

Abstract:
1. An analog-digital converter comprising a network of N differential amplifiers of rank j=1 to N, each having four inputs, two inputs receiving a differential input voltage to be converted V ep −V en , the third and the fourth inputs receiving reference voltages arising from a set of resistors of identical nominal values R traversed by a current of nominal value I 0 , the amplifier of rank j providing a voltage proportional to V ep −V en −K·R·I 0 when the differential input voltage V ep −V en is close to a voltage value K·R·I 0 , wherein the set of resistors comprises each of the networks of resistors has a configuration in which each resistor is formed of two resistors in parallel, placed symmetrically with respect to the middle of the network.