Patent ID: 6664798
Filing Date: 2003-12-16
Classification: G01R

Abstract:
Integrated circuit with a current test circuit, the integrated circuit comprisinga supply pad; a functional block with a supply input; a conductive connection between the supply pad and the supply input; a current test circuit having test inputs coupled to a first and a second point along the conductive connection, for comparing a voltage across the test inputs with a threshold, the current test circuit comprising a threshold offset circuit for shifting the threshold to a shifted value dependent: on a voltage across the test inputs when the threshold offset circuit is active; wherein the current test circuit is connected to the threshold offset circuit, and the current test circuit provides for execution of a test command, the execution comprising at least the steps of making the threshold offset circuit active when a first voltage is applied across test inputs and comparing a second voltage at the test input with the shifted threshold, one of the first and second voltage being a voltage drop across the connection when the integrated circuit is set to draw current along said connection, the other one of the first and second voltage being a reference voltage.