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A CMOS piecewise curvature-compensated voltage reference
- Source :
-
Microelectronics Journal . Jan2009, Vol. 40 Issue 1, p39-45. 7p. - Publication Year :
- 2009
-
Abstract
- Abstract: This paper presents a novel approach to the design of a high-precision CMOS voltage reference. The proposed circuit utilizes MOS transistors instead of bipolar transistors to generate positive and negative temperature coefficient (TC) currents summed up to a resistive load to generate low TC reference voltage. A piecewise curvature-compensation technique is also used to reduce the TC of the reference voltage within a wider temperature range. The output reference voltage can be adjusted in a wide range according to different system requirements by setting different parameters such as resistors and transistor aspect ratios. The proposed circuit is designed for TSMC 0.6μm standard CMOS process. Spectre-based simulations demonstrate that the TC of the reference voltage is 4.3ppm/°C with compensation compared with 107ppm/°C without compensation in the temperature ranges from −15 to 95°C using a 1.5V supply voltage. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 00262692
- Volume :
- 40
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Microelectronics Journal
- Publication Type :
- Academic Journal
- Accession number :
- 35929612
- Full Text :
- https://doi.org/10.1016/j.mejo.2008.09.006