Record number :
100086
Title of article :
A new low voltage precision CMOS current reference with no external components
Author/Authors :
R.، Dehghani, نويسنده , , S.M.، Atarodi, نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2003
Pages :
-927
From page :
928
To page :
0
Abstract :
A novel current reference with low temperature and supply sensitivity and without any external component has been developed in a 0.25 (mu)m mixed-mode process. The circuit is based on a bandgap reference (BGR) voltage and a CMOS circuit similar to a beta multiplier. An NMOS transistor in triode region has been used in place of a resistor in conventional beta multiplier to achieve a current which has a negative temperature coefficient and only oxide thickness dependent. The BGR voltage has a positive temperature coefficient to cancel the negative temperature coefficient of the beta multiplier. The simulation results using Bsim3v3 model show max-to-min fluctuation of less than 1% over a temperature range of – 20(degree)C to +100(degree)C and a supply voltage range of 1.4 V to 3 V with +30% tolerance for all of the used on- chip resistors. The maximum current variation is slightly less than the oxide thickness variation in the process corners.
Keywords :
Abdominal obesity , waist circumference , Food patterns , Prospective study
Journal title :
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II:ANALOG AND DIGITAL SIGNAL PROCESSING
Journal title :
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II:ANALOG AND DIGITAL SIGNAL PROCESSING
Serial Year :
2003
Link To Document :
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