Abstract: The invention relates to a combination of monolithically integrated semiconductor arrays each having a number of prefabricated standard elements that can be connected together using one or more metalization layers to form different signal processing units. The standard elements prefabricated on the semiconductor array comprise a number of base cells, a number of capacitors, a number of output transistors and a number of photodiodes arranged in rows and columns. The base cells each contain a number of npn and pnp transistors and a number of resistors. The common arrangement of base cells for signal processing and a photodiode array arranged in rows and columns in addition to the capacitors and output transistors permit low cost manufacture at short notice and in small production quantities of a wide variety of different photodetectors with integrated electronic circuits.

Abstract: In an opto-electronic transimpedance amplifier for the amplification of optical signals supplied by a photovoltaic cell and having a transistor as amplifier, the load resistor of the amplifier transistor is a transistor and two ohmic resistors whose series connection is parallel to the emitter-to-collector path of the load resistor transistor and whose connection point is connected to the base of the load resistance transistor.