Patent ID: 7738305

Claim:
A read-out circuit for or in a ROM memory, comprising: an input into which a read signal can be coupled, wherein the read signal, depending on the information contained in the read signal, comprising comprises a high signal level relative to a reference potential or a low signal level relative to a reference potential; a comparator circuit for comparing the read signal with an settable threshold; a threshold setting circuit designed for setting the threshold of the comparator circuit relative to the high and low signal levels; and a control signal generator for driving the threshold setting circuit, wherein the control signal generator generating generates a control signal similar to the read signal, wherein the threshold setting circuit comprises at least one second and one third transistor, which, relative to their controlled paths, are arranged in parallel with one another between a supply terminal and an output; the second transistor being connected to a reference input on a control side of the second transistor, into which reference input a reference read signal similar to the read signal can be coupled, and the third transistor being connected on a control side to a control input of the third transistor for coupling in the control signal.