Pixel arrangement, imaging device and method for operating a pixel arrangement

Method of operating a pixel arrangement, the method comprising:

• generating, in a conversion phase at a conversion stage, an electrical signal by conversion of electromagnetic radiation, the electrical signal being one of a global shutter signal and a rolling shutter signal,
• storing, in a global shutter sampling phase at a sample-and-hold stage, the global shutter signal from the conversion stage, wherein the conversion stage and the sample-and-hold stage are electrically coupled via a first amplifier that is electrically connected at its input to the conversion stage and at its output to the sample-and-hold stage,
• reading, in a global shutter readout phase at a readout stage, the global shutter signal stored at the sample-and-hold stage, wherein the sample-and-hold stage and the readout stage are electrically coupled via a second amplifier that is electrically connected at its input to the sample-and-hold stage and at its output to the readout stage, wherein the second amplifier is switchably electrically coupled to a supply terminal,
• reading, in a rolling shutter readout phase at the readout stage, the rolling shutter signal from the conversion stage via a switchable electrical interconnection between the output of the first amplifier and the output of the second amplifier, the switchable electrical interconnection being electrically arranged in parallel with the sample-and-hold stage.

Pixel arrangement, comprising:

• a conversion stage configured to convert electromagnetic radiation into electrical signals,
• a sample-and-hold stage configured to store electrical signals from the conversion stage,
• a readout stage configured to read electrical signals stored in the sample-and-hold stage,
• a first amplifier electrically connected at its input to the conversion stage and at its output to the sample-and-hold stage,
• a second amplifier electrically connected at its input to the sample-and-hold stage and at its output to the readout stage,
• wherein the second amplifier is implemented as source follower whose drain terminal is switchably electrically coupled to a supply terminal, and
• a switchable electrical interconnection between the output of the first amplifier and the output of the second amplifier, the electrical interconnection being electrically arranged in parallel with the sample-and-hold stage.