Integrated amplifier circuit

Integrated amplifier circuit assembly, comprising at least a first integrated amplifier circuit including:

• a first circuit node, a second circuit node, a supply potential node, and a reference potential node;
• first and second operational amplifiers each having an inverting input, a non-inverting input, an output;
• a terminal connected to said supply potential node, and a terminal connected to said reference potential node;
• two first ohmic voltage dividers each being formed of two resistors with a tap therebetween, each first voltage divider having one end connected to an output of a respective one of said operational amplifiers and another end connected to said first circuit node, and two further ohmic resistors each being connected between a respective one of said taps and a respective inverting input of a respective one of said operational amplifiers, providing real negative feedback to said operational amplifiers;
• and two ohmic supply resistors each being connected between said second circuit node and a respective non-inverting input of said operational amplifiers;
• said integrated circuit assembly including a third ohmic voltage divider formed of two resistors with a tap therebetween, said third voltage divider having one end connected to said supply potential node and another end connected to said first circuit node, an intermediate ohmic resistor connected between said tap of said third voltage divider and said second circuit node;
• the integrated amplifier circuit further including an ohmic series resistor to said inverting input of said first operational amplifier;
• first terminals each being connected to a respective one of said outputs of said operational amplifiers, second terminals each being connected to a respective one of said supply and reference potential nodes for connection to a supply voltage source, third terminals each being connected to a respective one of said first and second circuit nodes, and a single fourth terminal connected to said ohmic series resistor and to said non-inverting input of said second operational amplifier via connections internal to said integrated amplifier circuit, for feeding in a signal;
• a cooling strap for cooling the circuit, said cooling strap being conductively connected with the terminal of each amplifier for connection to the reference potential node.