论文信息 - A novel, low voltage, precision CMOS current reference with no external components

A novel, low voltage, precision CMOS current reference with no external components

A novel, precision current reference with low temperature and supply sensitivity and without any external component has been designed in a 0.18/spl mu/m CMOS mixed-mode process. The circuit is based on a bandgap reference (BGR) voltage and a CMOS circuit like a beta multiplier. The simulation results show max-to-min fluctuation of about 1% over a temperature range of -20 /spl deg/C to +100 /spl deg/C and supply voltage range of 1.1 V to 2V with /spl plusmn/30% tolerance for all of the used on-chip resistors. The maximum nominal current variation in process corners is less than 3.5%.

Rasoul Dehghani | Seyed Mojtaba Atarodi

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