期刊論文
| 學年 | 113 |
|---|---|
| 學期 | 2 |
| 出版（發表）日期 | 2025-03-10 |
| 作品名稱 | A 6th Order Current- Mirror-Based Gm-C Bandpass Filter with the Binary Searching Calibration Scheme for Capacitor Sensing Applications |
| 作品名稱（其他語言） | |
| 著者 | Hsin-Liang Chen, Hsiao-Hsing Chou, Chun-Kai Fu, Jen-Shiun Chiang |
| 單位 | |
| 出版者 | |
| 著錄名稱、卷期、頁數 | Circuits Systems and Signal Processing |
| 摘要 | This paper presents the current-mirror-based Gm-C bandpass filter with a digitally binary searching calibration scheme. The current-mirror-based circuit technique can be a highly regular structure, which drives the proposed filter to implement the conceptions of the modularized unit and repeatable layout. Furthermore, it employs a tunable bias current circuit and a successively counting logic to implement the binary searching calibration scheme to reduce the mass test timing budget and to obtain the correct frequency response. Thus, the proposed 6th-order current-mirror-based Gm-C bandpass filter can overcome the PVT variations with this automatically tunable bias scheme. Accordingly, a Gm-C LC oscillator, which forms the same unit cell as the filter, generates the oscillated clock for this digital successively counting calibration scheme. This work is designed and implemented in the 0.18 μm CMOS process with a supply voltage of 1.8 V. The specifications include the center frequency of 200 kHz and bandwidth of 100 kHz for capacitor sensing applications. The measured power dissipations of the filter and calibrating scheme are 0.65 mW and 0.56 mW, respectively. After calibrating, the mean offset and standard deviation ratios to the calibrated clock frequency are only 2.1% and 1.66%, respectively. |
| 關鍵字 | Current-mirror-based ; Capacitive sensing ; Bandpass filter ; Transconductance-capacitor (Gm-C) ; Binary searching |
| 語言 | en |
| ISSN | |
| 期刊性質 | 國外 |
| 收錄於 | SCI EI Scopus |
| 產學合作 | |
| 通訊作者 | |
| 審稿制度 | 是 |
| 國別 | USA |
| 公開徵稿 | |
| 出版型式 | ,電子版 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/127306 ) |