Optimization of Operational Amplifier Settling Time by Adjusting Secondary Poles Based on g(m)/I-D Design | |
Zhao YH(赵耀宏); Qiao J(乔俊); Wang X(王霄) | |
2017 | |
会议名称 | 12th IEEE International Conference on ASIC (ASICON) |
会议日期 | October 25-28, 2017 |
会议地点 | Guiyang, PEOPLES R CHINA |
页码 | 230-232 |
通讯作者 | Qiao, Jun |
中文摘要 | In readout circuits of infrared detectors, the settling time of the operational amplifier is crucial to transfer radiation signals. Hence, this paper proposes an optimization of the sizes of the load transistors pair, M3 and M4 in Figure 1, to improve the transient response. In this design, the amplifier is firstly designed based on g(m)/I-D method to satisfy the required performance. However, this may be not the best solution. Then, the sizes of the load transistors are scanned with the fixed width-to-length (W/L) ratio to guarantee the noise level. The step response experiments are carried out to figure out the best damping factor. Meanwhile, this paper analyzes the influence of the doublet spacing and the secondary pole-to-pole spacing. The initial calculated design has a settling time of 39.8ns @ 12 bit precision, while the settling process compresses to 32.4ns after the adjustment. |
收录类别 | EI ; CPCI(ISTP) |
产权排序 | 1 |
会议主办者 | IEEE |
会议录 | 2017 IEEE 12TH INTERNATIONAL CONFERENCE ON ASIC (ASICON)
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会议录出版者 | IEEE |
会议录出版地 | NEW YORK |
语种 | 英语 |
ISSN号 | 2162-7541 |
ISBN号 | 978-1-5090-6625-4 |
WOS记录号 | WOS:000426983400058 |
内容类型 | 会议论文 |
源URL | [http://ir.sia.cn/handle/173321/21645] ![]() |
专题 | 沈阳自动化研究所_光电信息技术研究室 |
作者单位 | 1.Key Laboratory of Opto-Electronic Information Processing, Chinese Academy of Sciences 2.Shenyang Institute of Automation, Chinese Academy of Sciences |
推荐引用方式 GB/T 7714 | Zhao YH,Qiao J,Wang X. Optimization of Operational Amplifier Settling Time by Adjusting Secondary Poles Based on g(m)/I-D Design[C]. 见:12th IEEE International Conference on ASIC (ASICON). Guiyang, PEOPLES R CHINA. October 25-28, 2017. |
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