| Citation: |
Yan Wei, Tian Xin, Li Wenhong, Liu Ran. A resistorless CMOS current reference with temperature compensation[J]. Journal of Semiconductors, 2011, 32(3): 035006. doi: 10.1088/1674-4926/32/3/035006
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Yan W, Tian X, Li W H, Liu R. A resistorless CMOS current reference with temperature compensation[J]. J. Semicond., 2011, 32(3): 035006. doi: 10.1088/1674-4926/32/3/035006.
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A resistorless CMOS current reference with temperature compensation
DOI: 10.1088/1674-4926/32/3/035006
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Abstract
A resistorless CMOS current reference is presented. Temperature compensation is achieved by subtracting two sub-currents with different positive temperature coefficients. The circuit has been implemented with a Chartered 0.35 μm CMOS process. The output current is 1.5 μA, and the circuit works properly with a supply voltage down to 2 V. Measurement results show that the temperature coefficient is 98 ppm/℃, and the line regulation is 0.45%/V. The occupied chip area is 0.065 mm2.-
Keywords:
- current reference
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References
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Proportional views
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