电子与封装2024，Vol.24Issue(7)：69-74,6.DOI:10.16257/j.cnki.1681-1070.2024.0106
适用于Flash型FPGA的宽范围输出负压电荷泵设计
Design of Wide Range Negative Output Voltage Charge Pump for Flash FPGA
吴楚彬 1高宏 1马金龙 1张章2
作者信息
- 1. 中国电子科技集团公司第五十八研究所,江苏无锡 214035
- 2. 合肥工业大学微电子学院,合肥 230094
- 折叠
摘要
Abstract
It is necessary to provide different positive and negative high voltage biases for Flash cells during operations such as programming,erasing,and read-back checking of Flash FPGA.A negative voltage charge pump for Flash FPGA is proposed,which adopts triple-well Flash process to eliminate the influence of substrate bias and substrate leakage.The main body of the charge pump adopts a double-branch parallel structure with 6 stages.Different input reference voltages are provided by the reference voltage generation circuit,and combined with the charge pump control system,the output voltage of the charge pump can be freely adjusted to meet the negative voltage requirements for Flash FPGA programming and erasing.The charge pump is designed and taped out based on 0.13 μm Flash process.Under a 200 pF load capacitor,the measured setting time of the-5.5 V output is only 8 μs with an output ripple of 72 mV,while the-17.5 V output has a setting time of 30 μs and an output ripple of only 56 mV,meeting the operational requirements of Flash FPGA.关键词
Flash型FPGA/负压电荷泵/三阱工艺Key words
Flash FPGA/negative voltage charge pump/triple-well process分类
电子信息工程引用本文复制引用
吴楚彬,高宏,马金龙,张章..适用于Flash型FPGA的宽范围输出负压电荷泵设计[J].电子与封装,2024,24(7):69-74,6.
