Infineon Technologies Ag

Boehringer Ingelheim Vetmedica Gmbh

Infineon Technology Ag

Marcin Augustyniak

Ralf Peter Brederlow

Marc Tiebout

Christian Paulus

Ralf-Rainer Schledz

Axel Klein

A monolithically integrated sensor assembly is for detecting molecules that are potentially contained in an analyte. The assembly includes: a substrate; at least one sensor electrode, which is located on or in the substrate and is coated with a sensor-active layer, on which electrochemically active particles are generated in the present of the molecules to be detected, the particles being detected via an electric sensor signal on the sensor electrode(s); at least one additional electrode that is located on or in the substrate; and an operating circuit that is integrated into the substrate for controlling the sensor electrode and the additional electrode(s).

Monolithically integrated hybridisation sensor assembly and associated production method

An amplifier circuit for an oscillator in a defined oscillating frequency range includes a plurality of transconductors, wherein at least one transconductor has a positive transconductance, and wherein at least one other transconductor has a negative transconductance, wherein the transconductors together provide a positive amplification, and a passive impedance element coupled to at least one fed back transconductor, wherein the transconductance of the transconductor and the impedance element are dimensioned so that, in the oscillating frequency range, a given phase difference is present between a signal at the input and a signal at the output.

Amplifier circuit for an oscillator in a defined oscillating frequency range and oscillator circuit

The invention provides an amplifier arrangement which is of multistage design. The output transistor in the output stage has a coupling path between its control input and its controlled path. The coupling path comprises a series circuit comprising a Miller compensation capacitance and a resistance with a controllable resistance value. It is thus possible to ensure stable operation of the amplifier regardless of bias and load conditions while simultaneously reducing the quiescent current drawn.

Amplifier arrangement

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Munich, Germany

Marcin Augustyniak