Abstract: A method for producing an integrated PIN photodiode. The PIN photodiode contains a doped region of a first conduction type near the substrate and a doped region that is remote from the substrate. The doped region that is remote from the substrate has a different construction type than the region near the substrate. In addition, an intermediate region provided that is a range between the doped region remote from the substrate and the doped region near the substrate. The intermediate region is undoped or provided with weak doping.

Abstract: The invention provides a circuit arrangement for conversion of an input current signal (11) to a digital output signal (43). In particular, the invention relates to a method for providing a low-capacitance voltage node for a comparator input of a tracking analog/digital converter. An input circuit node (12a) is supplied with an input current signal (11). A feedback current signal (13) is produced by the input circuit node (12a) in order to operate a tracking analog/digital converter. A difference current signal (14) is likewise produced by the input circuit node (12a), and is supplied to a transimpedance resistance element (15) connected to the input circuit node. A second connection of the transimpedance resistance element (15) is connected to a reference circuit node (12b). An intermediate variable (22) is produced at the reference circuit node (12b), and is supplied to a downstream converter device (23). A constant voltage with respect to ground (33) is maintained at the input circuit node (12a).

Abstract: The invention provides a circuit arrangement for conversion of an input current signal (11) to a digital output signal (43). In particular, the invention relates to a method for providing a low-capacitance voltage node for a comparator input of a tracking analog/digital converter. An input circuit node (12a) is supplied with an input current signal (11). A feedback current signal (13) is produced by the input circuit node (12a) in order to operate a tracking analog/digital converter. A difference current signal (14) is likewise produced by the input circuit node (12a), and is supplied to a transimpedance resistance element (15) connected to the input circuit node. A second connection of the transimpedance resistance element (15) is connected to a reference circuit node (12b). An intermediate variable (22) is produced at the reference circuit node (12b), and is supplied to a downstream converter device (23). A constant voltage with respect to ground (33) is maintained at the input circuit node (12a).