發(fā)布時間：2018-01-05 07:34

  本文關(guān)鍵詞：基于曲率補償?shù)牡蜏囟认禂?shù)帶隙基準(zhǔn)源設(shè)計　出處：《儀表技術(shù)與傳感器》2017年06期 　論文類型：期刊論文

  更多相關(guān)文章： 帶隙基準(zhǔn)電壓源 負反饋箝位 曲率補償 β倍增器電流源

【摘要】：為了減小基準(zhǔn)源輸出信號隨溫度變化的波動,設(shè)計了一種基于溫度曲率補償?shù)膸痘鶞?zhǔn)電壓源電路結(jié)構(gòu),采用負反饋箝位技術(shù),簡化了電路結(jié)構(gòu),減小了噪聲和失調(diào)誤差;同時應(yīng)用β倍增器電流源作為溫度曲率補償電路,有效降低了溫度系數(shù)。仿真結(jié)果表明,在-20~105℃范圍內(nèi),所設(shè)計的帶隙基準(zhǔn)電壓源的溫度系數(shù)僅為0.904 ppm/℃,低頻時電源電壓抑制比為46 dB。該電路結(jié)構(gòu)可以有效地提高帶隙基準(zhǔn)電壓源的溫度性能。
[Abstract]:In order to reduce the fluctuation of reference source output signal with temperature, a bandgap voltage reference circuit structure based on temperature curvature compensation is designed. The negative feedback clamping technique is used to simplify the circuit structure. Noise and misalignment errors are reduced; At the same time, the 尾 -multiplier current source is used as the temperature curvature compensation circuit, and the temperature coefficient is reduced effectively. The simulation results show that the temperature coefficient is in the range of -20 ~ 105 鈩，

本文編號：1382180