Open-source lab hardware: Low noise adjustable two-stage gain transimpedance amplifier with DC offset for low-light detection
| Autor: | Vlad F. Cretu, Peter Willis, Florian Kehl, Brandon C. Metz |
|---|---|
| Přispěvatelé: | University of Zurich, Kehl, Florian |
| Rok vydání: | 2021 |
| Předmět: |
Transimpedance amplifier
Photomultiplier Science (General) 10017 Institute of Anatomy Computer science 2205 Civil and Structural Engineering 2210 Mechanical Engineering Biomedical Engineering 2204 Biomedical Engineering 610 Medicine & health Signal Industrial and Manufacturing Engineering Current-to-voltage converter Printed circuit board Q1-390 Photomultiplier tube Electronic engineering 2209 Industrial and Manufacturing Engineering Instrumentation Civil and Structural Engineering Dynamic range 3105 Instrumentation Mechanical Engineering Amplifier Bandwidth (signal processing) Low light detection 570 Life sciences biology DC bias |
| Zdroj: | HardwareX, Vol 10, Iss, Pp e00233-(2021) |
| ISSN: | 2468-0672 |
| Popis: | An open-source, low noise, low cost, and tunable transimpedance amplifier is presented. The compact circuit board requires few parts and costs less than $65 USD. The transimpedance amplifier is intended for low-light detection and operation with commercial photomultiplier tubes (PMTs). It provides a much more cost-effective acquisition tool compared to competitive products on the market. The system can easily be assembled and modified to suit specific current sensing applications. The amplifier features two variable gains and an adjustable DC offset to optimize dynamic range and suppress potential bias in the signal. With a target bandwidth of DC to 2 Hz and fourth-order Sallen-Key cutoff, the design is ideally suited for various applications in the field of analytical chemistry and biology, such as laser-induced fluorescence detection or chemiluminescence measurements. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|