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一种低工艺敏感度,高PSRR带隙基准源 被引量：3

A Low Process Sensitivity,High PSRR Band-gap Reference
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摘要 实现了一种高精度带隙基准源,该基准源在预调节电路中应用了电源行波减法技术,显著改善了输出电压的电源抑制比。提出了采用电流负反馈技术稳定预调节电路电流的方法,降低了带隙基准的温度特性和电源抑制比对阈值电压的敏感度。考虑晶体管阈值电压发生±20%变化的情况下,仿真得到的基准源的温度系数和电源抑制比变化分别只有0.11ppm和7dB。测试结果表明,该基准源在-20～100℃的范围内的有效温度系数为25.7ppm/℃,低频电源抑制比为-68dB。其功耗为0.5mW,采用中芯国际0.35μm5-V混合信号CMOS工艺实现,有效芯片面积为300μm×200μm。 A high-precision bandgap reference is presented in this paper. The bandgap reference uses a pre-regulator with supply ripple subtraction technique to improve its power supply rejection ratio （PSRR）. The current negative feedback technique is introduced in the pre-regulator to stabilize its output current, which improves the sensitivity of temperature coefficient and PSRR to threshold variation. Considering the±20% variation of transistor threshold, the simulated variation of temperature coefficient （TC） and PSRR are 0. 11 ppm and 7 dB respectively. The measurement result shows TC of 25.7 ppm/C from -20℃ to 100℃ and the PSRR of -68 dB in low frequency are achieved. The power consumption is 0.5 mW. It is fabricated by using SMIC 0.35 um 5-V mixed-signal CMOS process with the effective area of 300 um × 200 um.
作者 李景虎 王永生 来逢昌
机构地区 哈尔滨工业大学微电子中心
出处 《固体电子学研究与进展》 CAS CSCD 北大核心 2008年第4期602-606,共5页 Research & Progress of SSE
关键词 带隙基准源 电源行波减法电路 预调节电路 温度系数 电源抑制 band-gap reference supply ripple subtraction pre-regulator temperature coefficient PSRR
分类号 TN402 [电子电信—微电子学与固体电子学]
  • 相关文献

参考文献10

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二级参考文献24

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共引文献54

同被引文献23

  • 1秦波,贾晨,陈志良,陈弘毅.1V电源非线性补偿的高温度稳定性电压带隙基准源[J].Journal of Semiconductors,2006,27(11):2035-2039. 被引量：12
  • 2张科,郭健民,孔明,李文宏.IC Implementation of a Programmable CMOS Voltage Reference[J].Journal of Semiconductors,2007,28(1):36-41. 被引量：3
  • 3Bang-Sup Song,Paul R Gray.A precision curvaturecompensated CMOS bandgap reference[J].IEEE J of Solid-state Circuit,1983,18(6):634-643.
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  • 5Qadeer Abroad Khan,Debashis Dutta.A programmable CMOS bandgap voltage reference circuit using current conveyor[C].IEEE Electronics,Circuits and Systems,2003,1:8-11.
  • 6Ka Nang Leung,Philip K T Mok,Chi Yat Leung.A 2-V 23-μA 5.3-ppm/℃ curvature-compensated CMOS bandgap voltage reference[J].IEEE J of Solid-state Circuit,2002,38(3):561-564.
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  • 10Yue Wu,Vladimir Aparin.A monolithic low phase noise 1.7 GHz CMOS VCO for zero-IF cellular CDMA receivers[C].IEEE International Solid-state Circuits Conference,2004,1:396-535.

引证文献3

二级引证文献1

固体电子学研究与进展
2008年 第4期

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