A Band-Gap Voltage Reference for LDO Circuit

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Abstract:

A band-gap voltage reference applicable for LDO circuit was designed. The band-gap voltage reference with lower change rate and low temperature-drift and high PSRR was acquired, which uses the two stage operational amplifier as the input terminal, and the miller compensation circuit was adopted in order to improve the stability of the voltage reference circuit. The circuit was simulated with Cadence tool and 0.5μm CMOS model. The results show that the reference voltage is 1.2182V, the PSRR of band-gap voltage reference is-76.8dB. The measured results indicated that the designed band-gap voltage reference is prospective for application in LDO circuit.

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626-630

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August 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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[1] Lenian He, Analog integrated circuit design and simulation, Beijing: Science press, (2008).

Google Scholar

[2] Abdelhalim Bendali and Yves Audet. A 1-V CMOS Current Reference With Temperature and Process Compensation. IEEE Trans Circuits Syst. I: regular papers, 2007, 54(7): 1134~1140.

DOI: 10.1109/tcsi.2007.900176

Google Scholar

[3] Philip E. Allen, CMOS Analog Circuit Design, OUP USA, (2011).

Google Scholar

[4] Liang B L. A 0. 6μm CMOS bandgap voltage reference circuit. Journal of Southeast University, 2003, 19(3): 221-224.

Google Scholar

[5] Becker -Gomez A, Visw anathanT L, Visw anathanT R. A low-supply-voltage CMOS sub-bandgap reference. IEEE Trans Circuits Syst, 2008, 55: 609.

DOI: 10.1109/tcsii.2008.921580

Google Scholar

[6] Chava C K, Silva-Martinez J. A frequency compensation scheme for LDO voltage regulators. IEEE Transactions Circuit Syst. I: Regular Papers, 2004, 51(6): 1041-1048.

DOI: 10.1109/tcsi.2004.829239

Google Scholar

[7] Zongfu Liu, Dongdong Ma, Danhui Zhao. Design of a Bandgap Voltage Reference with High Accuracy and Low Power Voltage. Electronic Sci & Tech Nov 15, 2010, 2010, 23(11): 41-50.

Google Scholar