CMOS current reference with supply and temperature compensation
Electronics Letters2007Vol. 43(25), pp. 1422–1424
Citations Over TimeTop 10% of 2007 papers
Abstract
The dependency of CMOS current reference on supply voltage and temperature is compensated by simply subtracting two current outputs with the same dependencies on the supply voltage and temperature. With this compensation scheme, a self-biased CMOS current reference has been implemented in a 0.25 µm standard CMOS technology. The current reference provides 10.45 µA output current, while the supply and temperature dependencies are 1700 ppm/V and 720 ppm/°C, respectively. The current reference occupies only 0.002 mm2 active area and can operate down to 1.1 V.
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