A Novel Wide-Temperature-Range, 3.9 ppm/$^{\circ}$C CMOS Bandgap Reference Circuit
Authors:
Top Cited Papers
- 11 November 2011
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Journal of Solid-State Circuits
- Vol. 47 (2) , 574-581
Abstract
This paper presents an innovative CMOS Bandgap Reference Generator topology that leads to an improved curvature compensation method over a very wide temperature range. The proposed design was implemented in a standard 0.35 μm CMOS process. The compensation is performed by using only poly-silicon resistors. This is achieved by using a second Op-amp that generates a CTAT current, which is subsequently used to enhance the curvature compensation method. The performance of the circuit was verified experimentally. Measured results have shown temperature coefficients as low as 3.9 ppm/°C over a temperature range of 165°C ( -15°C to 150°C ) and temperature coefficients as low as 13.7 ppm/°C over an extended temperature range of 200°C (-50°C to 150°C ). In addition the circuit demonstrated very good line regulation performance for a broad range of supply voltages. The measured line regulation at room temperature is 0.039% V.Keywords
This publication has 12 references indexed in Scilit:
- A novel CMOS Bandgap reference circuit with improved high-order temperature compensation2010
- A 1.2-V Piecewise Curvature-Corrected Bandgap Reference in 0.5 $\mu$m CMOS ProcessIEEE Transactions on Very Large Scale Integration (VLSI) Systems, 2010
- A Sub-1-V, 10 ppm/ $^{\circ}$C, Nanopower Voltage Reference GeneratorIEEE Journal of Solid-State Circuits, 2007
- New Curvature-Compensation Technique for CMOS Bandgap Reference with Sub-1-V Operation2005
- A 2-V 23-μA 5.3-ppm/°C curvature-compensated CMOS bandgap voltage referenceIEEE Journal of Solid-State Circuits, 2003
- Curvature-compensated BiCMOS bandgap with 1-V supply voltageIEEE Journal of Solid-State Circuits, 2001
- A 1.1-V current-mode and piecewise-linear curvature-corrected bandgap referenceIEEE Journal of Solid-State Circuits, 1998
- A curvature-corrected low-voltage bandgap referenceIEEE Journal of Solid-State Circuits, 1993
- A precision curvature-compensated CMOS bandgap referenceIEEE Journal of Solid-State Circuits, 1983
- Accurate analysis of temperature effects in I/SUB c/V/SUB BE/ characteristics with application to bandgap reference sourcesIEEE Journal of Solid-State Circuits, 1980