Programmable transimpedance amplifier

An integrated electronic circuit comprising:

• an amplification component comprising at least one input port and one output port, the amplification component being characterized by a bias current value, the bias current value being modifiable in situ without dismounting the amplification component off the integrated electronic circuit;
• a resistive component having a first terminal electrically connected to the input port of the amplification component and a second terminal electrically connected to the output port of the amplification component, the resistive component having a resistance value considered between its first terminal and its second terminal and conferring an ability to modify said resistance value in situ without dismounting the resistive component off the integrated electronic circuit;
• a capacitive component having a first terminal electrically connected to the input port of the amplification component and a second terminal electrically connected to the output port of the amplification component, the resistive component and the capacitive component being electrically arranged in parallel with respect to each other, the capacitive component having a capacitance value between its first terminal and its second terminal and conferring an ability to modify said capacitance value in situ without dismounting the capacitive component off the integrated electronic circuit;
• and
• a digital adjustment control capable of determining the following three values:
• the modifiable resistance value of the resistive component, the modifiable capacitance value of the capacitive component and the modifiable bias current value of the amplification component,
• the digital adjustment control comprising:
• a component for detecting a limit value of an output signal at the output port of the amplification component;
• a calculation unit connected to the detection component and arranged to adjust the value of the resistance of the resistive component and the value of the capacitance of the capacitive component so as to adjust a value of a characteristic relating to the amplification component when the limit value of the output signal is detected by the detection component,
• the digital adjustment command being applied through a communication bus connecting the calculation unit and a control circuit of a resistive branch switch and between the calculation unit and a control circuit of a capacitive branch switch;
• said integrated electronic circuit comprising at least one first terminal connected to the input port of the amplification component, said first terminal being connected to a photonic sensor supplying an input electric current,
• the photonic sensor comprising at least one photodiode.