一种适用于反熔丝FPGA的电荷泵电路  

A charge pump circuit for anti-fuse FPGA

作　　者：马金龙 于宗光[2] 代志双[2] 朱岱寅 MA Jinlong;YU Zongguang;DAI Zhishuang;ZHU Daiyin(Key Laboratory of Radar and Microwave Photonic Technology,Ministry of Education,School of Electronic Information Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 211106,Jiangsu,China;The 58th Institution of Electronic Science and Technology Group Corporation of China,Wuxi 214035,Jiangsu,China)

机构地区：[1]南京航空航天大学电子信息工程学院雷达与微波光子技术教育部重点实验室,江苏南京211106 [2]中国电子科技集团公司第五十八研究所,江苏无锡214035

出　　处：《微电子学与计算机》2023年第2期120-125,共6页Microelectronics & Computer

基　　金：国家自然科学基金(62174150);江苏省自然科学基金(BK20211040)。

摘　　要：提出了一种适用于反熔丝FPGA的快速启动低功耗的片上电荷泵电路.该电路基于Dickson电荷泵结构,通过高频时钟信号来启动电荷泵,提高启动速度;电荷泵输出稳定后,通过低频时钟信号来维持电荷泵输出,降低电路功耗.通过增加零伏电路实现了高电压与低电压之间的隔离,解决了反熔丝FPGA对电荷泵不同工作模式下的输出需求.Spectre结果显示,在2.5 V的工作电压下、整体电路全负载的条件下,启动时间13.5μs,稳定输出电压5.43 V,启动电流1.06mA,工作电流184μA.启动时间比参考文献快了36.5μs,相当于3.7倍,功耗仅仅增加了35%.用0.18μm CMOS工艺流片,电路编程成功并且功能正确,结果表明了此结构的可行性和实用性.An on-chip charge pump circuit with fast start and low power consumption for anti-fuse FPGA is proposed.The circuit is based on the Dickson charge pump structure,which is started by high-frequency clock signal to improve the starting speed.After the charge pump output is stable,the low-frequency clock signal is used to hold the charge pump output to reduce the circuit power consumption.The isolation between high voltage and low voltage is realized by adding zero voltage circuit,which solves the output requirements of anti-fuse FPGA under different working modes of charge pump.The spectre results show that under the working voltage of 2.5 V and full load of the whole circuit,the starting time is 13.5 jis.The stable output voltage is 5.43V,the starting current is 1.06 mA and the working current is 184 μA.The startup time is 36.5 ps faster than the reference,equivalent to 3.7 times,power consumption increased by only 35%.Taping-out with 0.18μm CMOS process,the circuit programming is successful and the fiinction is correct.The results show the feasibility and practicability of this structure.

关 键 词：反熔丝FPGA 隔离电路 电荷泵 快速启动 低功耗 

分 类 号：TN433[电子电信—微电子学与固体电子学]