Electronic device for controlling an external load, in which the output signal slope is independent from the capacity of the external load, and corresponding integrated component

摘要

The buffer (500) has a slew rate dependency reducing unit with a ramp generator (504) including an input (5043) to receive an input signal and delivering a signal. An amplifying unit (505) amplifies difference between an output signal and the signal delivered by the generator. The amplifying unit has an amplifier (5052) with a differential connected to current sources controlled by dynamic signals. The dynamic signals take specific values when the difference is higher than a preset threshold to reduce response time of the amplifying unit.