A 40-nm CMOS Wide Input Range and Variable Gain Time-Difference Amplifier Based on Current Source Architecture

被引：0
|
作者：
Lin, Li [1 ]
Tolentino, Lean Karlo S. [1 ]
Wang, Chua-Chin [1 ,2 ]
机构：
[1] Natl Sun Yat Sen Univ, Dept Elect Engn, Kaohsiung 80424, Taiwan
[2] Natl Sun Yat Sen Univ, Inst Undersea Technol, Kaohsiung 80424, Taiwan
来源：
2022 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS 22) | 2022年
关键词：
current source; delay; gain; phase detection; time amplier; DESIGN;
D O I：
10.1109/ISCAS48785.2022.9937655
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A time-difference amplifier (TDA) with a wide timedifference input range and variable gain is presented in this paper. Its time amplification is performed using novel current source architecture, phase detection, and variable delay circuits. After time amplification, to avoid the current sources for charging and discharging capacitors simultaneously, a reset circuit is added. To widen the input time-difference range, an adjustable current source control is added. The proposed TDA is implemented using TSMC 40-nm CMOS process. The core area is 209.42 x84.775 mu m(2). Though our design is driven by a lower supply voltage, it has the widest time-difference input range and the largest FOM among all existing TDAs.
引用
收藏
页码：2923 / 2927
页数：5
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