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2009 WRI World Congress on Computer Science and Information Engineering
A CMOS Bandgap Reference with Wide Input Voltage Range
Los Angeles, California USA
March 31-April 02
ISBN: 978-0-7695-3507-4
A Novel bandgap reference based on CMOS technology is presented in this paper. The main feature of the circuit is the wide input voltage range. It consists of two stages based on voltage-connection, for the first stage an improved structure is adopted to provide the relative high output voltage and for the second stage an amplifier is used to ensure the high accuracy. The circuit is simulated with HSPICE using SMIC 0.35μm mixed signal models, and the results show that it possesses a temperature coefficient(TC) of 3.82×10-6K-1 with temperature range from −40°C to 85°C. Under a wide input voltage range from 5V to 36V, it possesses the power supply rejected characteristic of 0.209mV/V and PSRR of 78dB.
Citation:
Yang Yuan, Song Zhenghua, Gao Yong, "A CMOS Bandgap Reference with Wide Input Voltage Range," csie, vol. 3, pp.364-368, 2009 WRI World Congress on Computer Science and Information Engineering, 2009
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