Design of Ultra-low-power Readout Circuit for UV GaN Focal Plane Array
文献类型：会议论文
| 作者 | Li XJ; Wang JQ; Xie J; Wang L; Zhang Y; Li XY |
| 出版日期 | 2017 |
| 关键词 | Low power CTIA ROIC UV GaN FPA Snapshot IWR ITR |
| DOI | 10.1117/12.2285685 |
| 英文摘要 | A Readout Integrated Circuit (ROIC) for GaN ultraviolet (UV) focal plane array (FPA) working in "solar-blind" band is studied in this paper. It has a format of 320x256 and a pixel pitch of 30 mu m. This circuit can operate both in integrating-while-reading (IWR) and integrating-then-reading (ITR) mode with the frame rate higher than 100fps. It is common that trade-offs always exist between chip power consumption and performances in integrated circuits design. In order to get high injection efficiency with small area and low power A novel low-power capacitive-feedback trans-impedance amplifier (CTIA) with snapshot mode is designed for the proposed circuit. The smallest operational current of CTIA is only 10nA for 5V power supply. The total power consumption of ROIC is reduced significantly to 45mW with the ultra-low-power pixel. By adopting the 0.35 mu m 2P4M mixed signal process the high-performance CTIA architecture can make two gain selections which charge capacities are 3.4Me(-) and 0.16Me(-) per pixel with 2.5 V output range. According to the experimental results this circuit works well under 5V power supply and achieves 8MHz pixel-data-transmission rate. |
| 语种 | 英语 |
| 源URL | [http://202.127.2.71:8080/handle/181331/12086]  |
| 专题 | 上海技术物理研究所_上海技物所 |
| 作者单位 | Shanghai Inst Tech Phys |
| 推荐引用方式 GB/T 7714 | Li XJ,Wang JQ,Xie J,et al. Design of Ultra-low-power Readout Circuit for UV GaN Focal Plane Array[C]. 见:. |
入库方式： OAI收割
来源：上海技术物理研究所
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