| 摘要 |
A method and a circuit for reading an electronic charge retention element for a temporal measurement, of the type including at least one capacitive element whose dielectric exhibits a leakage and a transistor with insulated control terminal for reading the residual charges, the reading circuit including; two parallel branches between two supply terminals, each branch including at least one transistor of a first type and one transistor of a second type, the transistor of the second type of one of the branches consisting of that of the element to be read and the transistor of the second type of the other branch receiving, on its control terminal, a staircase signal, the respective drains of the transistors of the first type being connected to the respective inputs of a comparator whose output provides an indication of the residual voltage in the charge retention element. |
