A new low voltage bandgap reference topology

Isikhan, Murat; Reich, Torsten; Richter, André; Hennig, Eckhard

doi:10.1109/icecs.2009.5410966

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“…The temperature coefficient and line regulation in the designs of Refs. [13,14] are too high for high-precision applications. Reference [15] shows satisfactory performances on power consumption, temperature range and temperature coefficient, but a low reference voltage would limit its range of application.…”

Section: Simulation and Test Resultsmentioning

confidence: 99%

A sub-1 V high-precision CMOS bandgap voltage reference

Liu¹,

Zhao²,

Geng³

2012

J. Semicond.

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A third-order, sub-1 V bandgap voltage reference design for low-power supply, high-precision applications is presented. This design uses a current-mode compensation technique and temperature-dependent resistor ratio to obtain high-order curvature compensation. The circuit was designed and fabricated by SMIC 0.18 m CMOS technology. It produces an output reference of 713.6 mV. The temperature coefficient is 3.235 ppm/ ı C in the temperature range of -40 to 120 ı C, with a line regulation of 0.199 mV/V when the supply voltage varies from 0.95 to 3 V. The average current consumption of the whole circuit is 49 A at the supply voltage of 1 V.

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Section: Simulation and Test Resultsmentioning

confidence: 99%