Transconductance tuning in photon counting
US12355410B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 27, 2021 |
| Grant date | Jul 8, 2025 |
| Priority date | — |
| Expiry date | Mar 19, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03G3/3084
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A circuit arrangement is provided which includes an array of stages for photon counting current to voltage conversion. Each stage includes a tunable operational transconductance amplifier and a feedback network forming a feedback loop of the operational transconductance amplifier. Each stage is configured to provide an output signal as a function of an input signal that is provided to the amplifier input of the operational transconductance amplifier, wherein the input signal comprises one or more current pulses and the output signal comprises one or more voltage pulses. With the tunable operational transconductance amplifier the transconductance of a stage can be tuned so that differences in peaking time and gain are avoided. Furthermore, an imaging device and a method for operating a circuit arrangement are provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.