New approach to CMOS current reference with very low temperature coefficient

A novel CMOS current reference circuit with very low temperature coefficient is realized, by compensating the temperature performance of the resistor. This circuit gives out a current reference realizing a temperature coefficient of 50 ppm/ºC over the temperature range of (0ºC, 110ºC) and a supply voltage coefficient of 210 ppm/V. This circuit consumes 85 µA at room temperature and can work properly with a supply voltage of 1-V. Categories and Subject Descriptors B.7.1 [Integrated Circuits]: Types and Design Styles – VLSI (very large scale integration). General Terms Design Keywords Current reference, CMOS, temperature coefficient.

• Type: Conference
• Year: 2003
• Where: GLVLSI
• Authors: Jiwei Chen, Bingxue Shi
• Keywords: Current Reference, GLVLSI 2003, Low Temperature Coefficient, Temperature Coefficient, VLSI