Abstract: 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).

Abstract: A planar-sensor arrangement is disclosed, which is used to detect particles possibly contained in an analyte. The sensor element includes a substrate, a first planar-sensor electrode and a second planar-sensor electrode which are formed on and/or in the substrate and whereon catcher molecules can be immobilised. The first sensor-electrode and the second sensor-electrode are divided, respectively, into a plurality of planar sensor-electrode partial areas. The sensor electrode partial areas of the first sensor electrode and the sensor electrode partial areas of the second sensor electrode are arranged in an alternating manner in two dimensions on the surface plane of the substrate. The sensor element also includes a wiring structure by which at least one part of the sensor electrode partial areas of the first sensor electrode are electrically coupled together, and by which at least one part of the sensor-electrode partial areas of the second sensor electrode are electrically coupled together.

Abstract: The invention relates to a sensor arrangement and sensor array with a sensor arrangement for the detection of particles possibly contained in an electrolytic analyte, comprising a working electrode which may be electrically coupled to the electrolytic analyte, with immobilized trap molecules such that in the presence of the electrolytic analyte containing the particles for detection, sensor events occur at the working electrode of the sensor arrangement. Furthermore, an auxiliary electrode which may be electrically coupled to the electrolytic analyte is provided and an operating circuit coupled to the working electrode, embodied such as to maintain an essentially constant potential difference between the working electrode and the auxiliary electrode. The sensor also comprises a device, embodied to maintain an essentially constant ratio between the current flowing to the working electrode and the current flowing to the auxiliary electrode.

Abstract: A circuit arrangement is disclosed. The circuit arrangement includes a substrate, at least one sensor array arranged on and/or in the substrate, and at least one operating circuit integrated on and/or in the substrate and serving for driving the at least one sensor array. The operating circuit and the sensor array are arranged in a manner spatially separate from one another.

Abstract: A circuit arrangement has a sensor electrode, a control circuit which is coupled to the sensor electrode via an input, and a current source which is coupled via a control input to a control output of the control circuit. The current source can be controlled by the control circuit. The control circuit is arranged so that if the current signal at its input is outside a predetermined current intensity range, the control circuit controls the current source so that the current source sets the electric current generated by it so that the electric current flowing into the input of the control circuit is brought to a predetermined current intensity value. Furthermore, the control circuit is set up in such a way that if the current signal at its input is within the predetermined current intensity range, the control circuit controls the current source so that the current source holds the electric current generated by it at the present value.

Abstract: The invention relates to a switching circuit arrangement and a method for producing a switching circuit arrangement. Said switching circuit arrangement contains a substrate comprising an integrated switching circuit, in addition to an integrated reference electrode which is formed on the substrate and has a metal core that is at least partially surrounded by an envelope consisting of a poorly soluble salt of the metal. The integrated switching circuit is electrically coupled to the core.

Abstract: Circuit arrangement having a sensor electrode, a first circuit unit, which is electrically coupled to the sensor electrode, and a second circuit unit, which has a first capacitor. The first circuit unit holds an electrical potential of the sensor electrode in a predetermined first reference range around a predetermined electrical desired potential by coupling the first capacitor and the sensor electrode such that there is a matching of their electrical potentials. If the second circuit unit detects the electrical potential of the first capacitor being outside a second reference range, the second circuit unit brings the first capacitor to a first electrical reference potential.

Abstract: A sensor element is for detecting DNA single strands which are possibly contained in an analyte. The sensor element includes a substrate and at least two electrodes in and/or on the substrate. In a surface area of the substrate, catcher molecules are immobilized and are adapted to hybridize to DNA single strands that are possibly contained in an analyte. The DNA single strands include a label that has dielectric properties that are different from those of the analyte. The electrodes are coupled to a detection device for detecting a change in the capacitative portion of the impedance between the electrodes due to a label that is present in an area surrounding the electrodes as a result of the hybridization event.

Abstract: A measuring cell for recording an electrical potential of an analyte situated on the measuring cell. The measuring cell has a sensor, a layer arranged above the sensor and electrically insulating the analyte from the sensor, and an amplifier circuit connected to the sensor on a substrate and having an input stage containing a field-effect transistor or a bipolar transistor, the sensor being at least indirectly connected to a control terminal of the field-effect transistor or of the bipolar transistor. An operating point of the amplifier circuit is set by means of a voltage or a current applied at the control terminal of the field-effect transistor or of the bipolar transistor of the input stage of the amplifier circuit.

Abstract: The invention relates to an analog-to-digital converter. The analog-to-digital converter, for conversion of a signal for digitization into a digital signal, contains a number of comparators, each of which has a first and second input and an output. The digitized signal is provided at said output. Each comparator is further provided with an impedance network, coupled to at least one input of the comparator, whereby an impedance network is wired between the corresponding comparator and the signal for digitization and between the corresponding comparator and a first electrical reference potential. The impedance networks are arranged such that the comparators are essentially brought to the same working point in the region of the specific decision threshold thereof.

Abstract: Biosensor circuit arrangement including a substrate, a sensor element formed in or on a surface region of the substrate with a physical parameter, which is coupled to a substance to be examined, the type of coupling having a resistive component, the sensor element having an electrically conductive sensor electrode that is coupled to the substance to be examined, the sensor element having a measuring transistor the gate terminal of which is coupled to the electrically conductive sensor electrode, and the physical parameter being the threshold voltage of the measuring transistor, and a calibration device formed in or on the substrate, the calibration device being set up such that it is used to at least partly compensate for an alteration of the value of the physical parameter of the sensor element.

Abstract: A sensor arrangement and method of operating the sensor arrangement are described. The sensor arrangement has sensor devices formed on or in a substrate and a calibration device for calibrating a respective sensor device. Each sensor device has an electrical signal converter which is a field-effect transistor (FET) having a gate terminal coupled to a sensor element that is coupled to the signal converter, a device that keeps constant the electrical voltage between source and drain terminals of the FET, and a device for detecting the value of the electric current flowing through the signal converter. The sensor element characteristically influences the electrical conductivity of the signal converter on account of a sensor event on the sensor element. The calibration device brings the gate region of the FET to an electrical calibration potential such that the electric current is independent of parameter fluctuations of the FET.

Abstract: A method for fabricating a microelectronic circuit having an improved electrically conductive element. The method includes providing a finished processed microelectronic circuit having a monolithically integrated coil and having a passivation layer situated above at least the monolithically integrated coil. The method further comprises removing at least part of the passivation layer above the monolithically integrated coil and applying a metal layer above the monolithically integrated coil so that the metal layer is electrically coupled to the monolithically integrated coil.

Abstract: A biosensor array having a substrate, a plurality of biosensor zones arranged on the substrate, each of which has a first terminal and a second terminal, at least one drive line and at least one detection line, the at least one drive line being electrically insulated from the at least one detection line. In each case the first terminal of each biosensor zone is coupled to precisely one of the at least one drive line and the second terminal of each biosensor zone is coupled to precisely one of the at least one detection line, and at least one of the at least one drive line and at least one of the at least one detection line is coupled to at least two of the biosensor zones.

Abstract: Sensor arrangement having sensor arrays arranged in crossover regions of row and column lines, each of the sensor arrays having a coupler and a sensor element, which influences current flow between a row and column line through the coupler, an accumulative current flow detector that detects accumulative current flow from individual electric current flows provided by the sensor arrays, and a decoder that determines a sensor element at which a sensor signal is present from the accumulative electric current flows. Accumulative current flows which satisfy a predetermined first criterion can be determined from the detected accumulative current flows, and from the accumulative current flows determined an accumulative current flow can be selected as an accumulative current flow which represents a sensor signal and which satisfies a predetermined second criterion, and the sensor element at which a sensor signal is present can be determined from the selected accumulative current flow.

Abstract: Sensor arrangement, set up as an integrated circuit, having a substrate, at least three sensor electrodes arranged on the substrate such that, in an operating state in which an electrically conductive substance is introduced into the sensor arrangement, the sensor electrodes are coupled to one another by means of the electrically conductive substance, capture molecules immobilized on at least a portion of the sensor electrodes, wherein molecules to be detected can hybridize with the capture molecules, a control circuit for applying a first electrical signal to a selected sensor electrode and simultaneously applying a second electrical signal to at least two of the other sensor electrodes, the first electrical signal being a first temporally variable electrical signal and/or the second electrical signal being a second temporally variable electrical signal, a detection device, which is set up such that, in a first operating state, in which a reference liquid is introduced into the sensor arrangement, a referenc

Abstract: The invention relates to a driver circuit (10) for integrated circuits comprising at least one input node (11) for an input signal and at least one output node (12) for an output signal. One or several, preferably two partial drivers (20, 30) supply approximately sine-wave shaped current to the load capacity (15) thereby improving electromagnetic compatibility. A feedback circuit (40) is also provided. Said feedback circuit consists of one or several evaluation circuits (50) and one or several feedback capacitors (41). The evaluation circuits (50) are connected to the partial drivers (20, 30) One feedback capacitor (41, 42) is respectively arranged between an output node (12) of the driver circuit (10) and an input node (51) of an evaluation circuit (50). An evaluation circuit (50) is provided via the feedback condenser (41, 42) between an output node (12) of the driver circuit and an input node (51). The edge steepness of the signal i.e.

Abstract: In a first phase a first sensor signal, essentially comprising the current offset signal of the sensor, is applied to the input of an electronic circuit. The first sensor signal is fed to a first signal path and stored therein. In a second phase a second sensor signal, comprising the current offset signal and a time-dependent measured signal, is applied to the input and the stored first sensor signal is fed to the input by means of the first signal path, such that essentially the time dependent measured signal is fed by means of a second signal path coupled to the input.

Abstract: Method for detecting macromolecular biopolymers using a unit for immobilizing macromolecular biopolymers, in which the unit is provided with first molecules serving as capture molecules.

Abstract: Apparatus for measuring neural network activity with a textured semiconductor substrate. Sensor elements have a respective detection electrode on the substrate surface for detecting neural network signals, and the detected neural signals are a basis for outputting electrical sensor output signals via respective sensor element outputs. Each amplifier element has an input and an output. Each of the sensor elements has associated therewith one of the amplifier elements whose input is connected to the sensor output of the respective sensor element. The amplified sensor output signal is output the amplifier output as an amplifier output signal. An activity evaluator has an input, which is connected to at least one of the amplifier outputs, and an output. The activity evaluation device produces an activity signal, which is a measure of activity of the neural network, based on the amplifier output signal, and outputs the amplifier output signal via the evaluation output.