International Journal of Multidisciplinary Research and Development

International Journal of Multidisciplinary Research and Development


International Journal of Multidisciplinary Research and Development
International Journal of Multidisciplinary Research and Development
Vol. 3, Issue 9 (2016)

A wide-input high PSRR bandgap reference circuit


Wang Li, LI Xiankun, XUAN Zhibin, LU Feng

Because the conventional bandgap reference voltage source with low power supply rejection (PSR) and narrow input voltage. Based on SMIC0.18?m BiCMOS process, use two bipolar transistors in saturated region while forming base and emission voltage ?VBE, a novel high PSR bandgap voltage reference circuit with wide input voltage and small temperature coefficient was proposed, independent of supply voltage reference current source circuit owns the feature of changing with the temperature, which decreases the effect of temperature towards the output reference voltage. Spectre simulator results showed that output reference voltage VREF = 1.206V 1mV in the range of -55 ? to 125 ? with a supply voltage from 1.5V to 5V.The temperature coefficient was 6.562ppm/?, and the PSR was -87.49dB at 1KHz with the supply voltage of 5V.
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How to cite this article:
Wang Li, LI Xiankun, XUAN Zhibin, LU Feng. A wide-input high PSRR bandgap reference circuit. International Journal of Multidisciplinary Research and Development, Volume 3, Issue 9, 2016, Pages 43-47
International Journal of Multidisciplinary Research and Development International Journal of Multidisciplinary Research and Development