论文信息 - A Low Temperature Sensitivity Switched-Capacitor Current Reference

A Low Temperature Sensitivity Switched-Capacitor Current Reference

A current reference with low temperature sensitivity based on a switched-capacitor technique has been developed. The implementation is targeted for a 0.18µ µ µ µ CMOS process. HSPICE simulations using level 49 models valid over a wide temperature range were used to verify the design. The simulation results predict variations of less than 0.029% over a temperature range of -40 ° ° ° °C to 125 °C. .

Randall L. Geiger | S. Q. Malik | M. E. Schlarmann

[1] J. Fellrath,et al. CMOS analog integrated circuits based on weak inversion operations , 1977 .

[2] Guido Torelli,et al. Tracking switched-capacitor CMOS current reference , 1998 .

[3] Gabor C. Temes,et al. MOSFET-only switched-capacitor circuits in digital CMOS technology , 1999 .

[4] Willy Sansen,et al. A CMOS temperature-compensated current reference , 1988 .

[5] Eric A. Vittoz. The Design of High-Performance Analog Circuits on Digital CMOS Chips , 1985 .

[6] H. Oguey,et al. CMOS Current Reference without Resistance , 1996, ESSCIRC '96: Proceedings of the 22nd European Solid-State Circuits Conference.

[7] C.-H. Lee,et al. All-CMOS temperature independent current reference , 1996 .