一种具有恒定转换速率的低压输出电路*

doi:10.16257/j.cnki.1681-1070.2022.0408

电子与封装 ›› 2022, Vol. 22 ›› Issue (4): 040303 . doi: 10.16257/j.cnki.1681-1070.2022.0408

一种具有恒定转换速率的低压输出电路^*

顾明¹;常红¹;黄少卿¹;陈海涛²

1. 中科芯集成电路有限公司，江苏无锡　214072；

收稿日期:2021-07-22 出版日期:2022-04-25 发布日期:2021-11-02
作者简介:顾明（1991—），男，江苏高邮人，硕士，现从事模拟集成电路设计。

Low-Voltage Output Driver with Constant Slew Rate overPVT and Output Load Capacitance Variations

GU Ming¹, CHANG Hong¹, HUANG Shaoqing¹,CHEN Haitao²

1. China Key System &Integrated Circuit Co., Ltd., Wuxi 214072, China;

Received:2021-07-22 Online:2022-04-25 Published:2021-11-02

摘要/Abstract

摘要： 设计了一种输出电路，其输出波形的转化速率（Slew Rate, SR）对工艺、电压、温度（Process Voltage Temperature, PVT）和负载的变化不敏感。由于N型金属-氧化物-半导体（N-Metal-Oxide-Semiconductor, NMOS）具有高速和低导通电阻的优点，输出缓冲器被设计成双NMOS管串联结构。为了得到对PVT和负载不敏感的SR，在预驱动电路和输出缓冲器间引入了反馈电容。Hspice的仿真结果显示，当输入信号频率为5 MHz时，负载电容从20 pF变化到80 pF，输出的上升时间和下降时间仅仅变化了0.6 ns和1.3 ns，与传统电路相比性能提高了257.6%。不同的PVT下，输出的上升时间和下降时间变化了1.2 ns和2.8 ns，与传统电路相比性能提高了62.4%。

关键词: 低压输出电路, 恒定转换速率, 反馈电容

Abstract: A low-voltage output driver with constant slew rate (SR) over process, voltage, temperature (PVT) and output load variations is designed. Because N-metal-oxide-semiconductor (NMOS) has the advantages of high speed and low on resistance, the output buffer is designed with double NMOS transistor series structure. To achieve the SR of PVT-insensitive and loading-insensitive, a feedback capacitance is used between output driver and pre-driver. According to the Hspice simulation results, when the frequency of input signal is 5 MHz, the variations of rising time and falling time is about 0.6 ns and 1.3 ns due to the output load changes from 20 pF to 80 pF, the performance is improved by 257.6% compared to the conventional output driver. The variations of rising time and falling time is about 1.2 ns and 2.8 ns due to PVT variations, the performance is improved by 62.4% compared to the conventional output driver.

Key words: low-voltageoutputdriver, constantslewrate, feedbackcapacitance

中图分类号:

TN495

顾明;常红;黄少卿;陈海涛. 一种具有恒定转换速率的低压输出电路^*[J]. 电子与封装, 2022, 22(4): 040303 .

GU Ming, CHANG Hong, HUANG Shaoqing,CHEN Haitao. Low-Voltage Output Driver with Constant Slew Rate overPVT and Output Load Capacitance Variations[J]. Electronics & Packaging, 2022, 22(4): 040303 .

参考文献

[1] 堵军，高辉，张益平，等. 电路设计中的信号完整性分析和研究[J]. 电子与封装，2013, 13(8)：25-29.
[2] 曹跃胜，胡军，刘烨铭. 高速SERDES的多板传输技术与SI仿真[J]. 计算机工程与科学, 2008, 30(8): 139-143.
[3] 崔岩松，邓中亮，段大高. 嵌入式视频系统中高速信号完整性分析[J]. 电子器件, 2005, 28(4): 886-889.
[4] 葛宝珊，李波，姚春连，等. 高速数字系统中信号完整性和传输延时分析[J]. 计算机工程与设计, 2003, 24(2): 8-10.
[5] LACY C, TOFFOLON D, HOWE S. USB 2.0 FS/LS mode driver: US, US20070064778 A1[P]. 2007.
[6] LACY C, TOFFOLON D A, HOWE S. Universal serial bus (USB) 2.0 legacy full speed and low speed (FS/LS) mode driver: US, US7522659 B2[P]. 2009.
[7] TSUGITA Y, UENO K, ASAI T, et al. On-chip PVT compensation techniques for low-voltage CMOS digital LSIs[C]// IEEE International Symposium on Circuits & Systems. IEEE, 2009.
[8] TAKAHASHI T, UCHIDA M, YOSHINO R, et al. A CMOS gate array with 600 Mb/s simultaneous bidirectional I/O circuits[J]. IEEE Journal of Solid-State Circuits, 2002, 30(12): 1544-1546.
[9] MALKOV A, VASIOUNIN D, SEMENOV O. A review of PVT compensation circuits for advanced CMOS technologies[J]. Circuits and Systems, 2011, 2(3):162-169.
[10] SHIN S K, YU W, JUN Y H, et al. Slew-rate-controlled output driver having constant transition time over process, voltage, temperature, and output load variations[J]. IEEE Transactions on Circuits & Systems II Express Briefs, 2007, 54(7): 601-605.

中文引用格式：顾明，常红，黄少卿，等. 一种具有恒定转换速率的低压输出电路[J]. 电子与封装，2022，22(4):040303.
英文引用格式：GU Ming, CHANG Hong, HUANG Shaoqing, et al. A low-voltage output driver with constant slew rate over PVT and output load capacitance variations[J]. Electronics & Packaging, 2022, 22(4):040303.
最新录用说明：
此版本为经同行评议被本刊正式录用的文章。其内容、版式可能与正式出版（印刷版）稍有差异，正式出版后此版本会更新，请以正式出版版本为准。本文已确定卷期、页码以及DOI，可以根据DOI引用。
本文尚未正式出版，未经许可，不得转载。

中国半导体行业协会封装分会会刊

中国电子学会电子制造与封装技术分会会刊

一种具有恒定转换速率的低压输出电路^*

Low-Voltage Output Driver with Constant Slew Rate overPVT and Output Load Capacitance Variations

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 0

编辑推荐

Metrics

本文评价