Abstract: An output buffer is provided, to which first and second input signals are applied and that delivers an output signal. The output buffer includes a second offset switching stage installed in cascade downstream from a first switching stage. The second offset switching stage generates control points shifted in time with respect to memory points.

Abstract: A low current comparator with programmable hysteresis is disclosed that uses a ratio of latch intrinsic (internal) latch capacitance and capacitance of a sample capacitor to adjust hysteresis. In some implementations, the comparator includes a switch capacitor sampling stage coupled to a dynamic latch output stage. Depending on an output state (0 or 1) of the comparator, hysteresis is generated by adding or subtracting a first charge stored in the latch intrinsic capacitance to or from a second charge stored in the sampling capacitor. The ratio of latch intrinsic capacitance and the capacitance of the sampling capacitor can be adjusted to trim hysteresis value. The hysteresis function does not require additional capacitors or additional logic.

Abstract: A low current comparator with programmable hysteresis is disclosed that uses a ratio of latch intrinsic (internal) latch capacitance and capacitance of a sample capacitor to adjust hysteresis. In some implementations, the comparator includes a switch capacitor sampling stage coupled to a dynamic latch output stage. Depending on an output state (0 or 1) of the comparator, hysteresis is generated by adding or subtracting a first charge stored in the latch intrinsic capacitance to or from a second charge stored in the sampling capacitor. The ratio of latch intrinsic capacitance and the capacitance of the sampling capacitor can be adjusted to trim hysteresis value. The hysteresis function does not require additional capacitors or additional logic.

Abstract: A successive approximation analog/digital converter is provided, which includes a successive approximation register supplying a digital/analog converter, first means of comparing an input signal of the analog/digital converter to an output signal of the digital/analog converter delivering a first comparison signal, said successive approximation analog/digital converter being synchronised by a clock signal coming from a conversion clock. A method such as this includes dynamic adaptation of the conversion clock period based on at least one parameter.

Abstract: This disclosure relates to an electronic driver device for an external load to which an input signal is applied at its input and that produces an output signal to the external load from its output. Such an electronic driver device includes elements that reduce dependence of the slew rate of the output signal on the external load capacitance.

Abstract: A successive approximation analog/digital converter is provided, which includes a successive approximation register supplying a digital/analog converter, first means of comparing an input signal of the analog/digital converter to an output signal of the digital/analog converter delivering a first comparison signal, said successive approximation analog/digital converter being synchronised by a clock signal coming from a conversion clock. A method such as this includes dynamic adaptation of the conversion clock period based on at least one parameter.

Abstract: An output interfacing device is provided, which receives at its input an input signal and provides at its output, an output signal to an external load. The output interfacing device invertes the effect of the capacitance of the external load on the slew rate of the output signal.

Abstract: An output buffer is provided, to which first and second input signals are applied and that delivers an output signal. The output buffer includes a second offset switching stage installed in cascade downstream from a first switching stage. The second offset switching stage generates control points shifted in time with respect to memory points.

Abstract: This disclosure relates to an electronic driver device for an external load to which an input signal is applied at its input and that produces an output signal to the external load from its output. Such an electronic driver device includes elements that reduce dependence of the slew rate of the output signal on the external load capacitance.

Abstract: The present invention relates to a device for generation of a reference electrical voltage. The device includes a first current generator outputting a current proportional to temperature. The first current generator comprises at least one operational amplifier and two branches in parallel, a first branch comprising a first current source and a first bipolar transistor, and a second branch comprising a second current source, a first resistance and a second bipolar transistor. A second current generator outputs a current conversely proportional to temperature. The device includes means of summating the currents so as to obtain a voltage independent of the said temperature, and means of reducing dependence of the current circulating in the said first branch on the value of the said first resistance. The reduction means comprises at least one second resistance with a non-adjustable value.

Abstract: The disclosure relates to a hysteresis comparator of a first input voltage and a second input voltage. The comparator includes a first differential stage whose first and second inputs are respectively powered by the said first and second input voltages, and at least one second differential stage symmetrical to the said first differential stage. Two inputs of the said second differential stage are respectively powered by first and second reference voltages. At least one first current, dependent on the difference between the first and second input voltages, is compared with at least one second current dependent on the difference between the second and first reference voltages.

Abstract: The present invention relates to a device for generation of a reference electrical voltage. The device includes a first current generator outputting a current proportional to temperature. The first current generator comprises at least one operational amplifier and two branches in parallel, a first branch comprising a first current source and a first bipolar transistor, and a second branch comprising a second current source, a first resistance and a second bipolar transistor. A second current generator outputs a current conversely proportional to temperature. The device includes means of summating the currents so as to obtain a voltage independent of the said temperature, and means of reducing dependence of the current circulating in the said first branch on the value of the said first resistance. The reduction means comprises at least one second resistance with a non-adjustable value.

Abstract: The invention relates to an electrical reference voltage source comprising: a first electrical current source (PTAT 101) adapted to produce a first current (14) proportional to a temperature; and a second electrical current source (CPTAT 102) adapted to produce a second current (15) inversely proportional to the temperature. According to the invention, the first and second current sources are installed in parallel and the voltage source comprises means (R3) of summating the first and second currents producing a reference current in the summation means generating the reference voltage (VREF) at the terminals of the summation means. The invention also relates to a temperature sensor, a temperature threshold detector, a chip and a corresponding system.

Abstract: The invention relates to an electrical reference voltage source comprising: