A 1.8ppm/&amp;#x00B0;C Low Temperature Coefficient Curvature Compensated Bandgap for the Low Voltage Application

Yang, Chun; Cui, Xiaole; Wang, Bo; Lee, Chung Len

doi:10.1109/edssc.2013.6628095

Cited by 3 publications

(2 citation statements)

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“…Only standard CMOS process implementations are considered for comparison. The TC of designed reference circuit is higher compared to reference architecture presented in References [14,16]. However, both designs require complex post-fabrication trimming schemes to nullify process variations.…”

Section: Comparisonmentioning

confidence: 94%

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An inherent curvature-compensated voltage reference using non-linearity of gate coupling coefficient

Hande

Baghini

2015

J. Semicond.

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A novel current-mode voltage reference circuit which is capable of generating sub-1 V output voltage is presented. The proposed architecture exhibits the inherent curvature compensation ability. The curvature compensation is achieved by utilizing the non-linear behavior of gate coupling coefficient to compensate non-linear temperature dependence of base-emitter voltage. We have also utilized the developments in CMOS process to reduce power and area consumption. The proposed voltage reference is analyzed theoretically and compared with other existing methods. The circuit is designed and simulated in 180 nm mixed-mode CMOS UMC technology which gives a reference level of 246 mV. The minimum required supply voltage is 1 V with maximum current drawn of 9.24 A. A temperature coefficient of 9 ppm/ ı C is achieved over 25 to 125 ı C temperature range. The reference voltage varies by ˙11 mV across process corners. The reference circuit shows the line sensitivity of 0.9 mV/V with area consumption of 100 110 m 2

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Section: Comparisonmentioning

confidence: 94%

“…where 0 is carrier mobility at absolute temperature. Expression (14) shows that the slope of V GS with respect to the temperature is negative as all the terms in this expression have negative coefficients. Simulation results given in Figure 4(a) support the argument.…”

Section: Effect Of the á On Subthreshold V Gsmentioning

confidence: 99%