DB-driver: a low power CMOS bootstrapped differential cross-coupled driver

This paper for the first time reports the design of a high speed and low power differential cross-coupled bootstrapped CMOS driver circuit. The circuit design style, based on the proposed differential cross-coupled bootstrapped driver achieves high performance low core area, and fast full-swing operation, even in spite of the fact that the magnitude of the threshold voltage of the CMOS devices cannot be scaled down with the scaling of the power supply voltage. The proposed driver is implemented on 0.13 µm CMOS technology with a power supply of 1.2 V. It is 34% faster and provides 8% less core area when compared to a base-line circuit using an indirect bootstrap technique. In addition, the proposed driver reduces the power consumption by 35%. The superior performance of the proposed circuit over the other differential cross-coupled bootstrapped CMOS driver circuit, for the applications that require high performance, has been verified with post-layout simulation.

[1]  H.J. Shin.  Full-swing logic circuits in a complementary BiCMOS technology , 1990, Digest of Technical Papers., 1990 Symposium on VLSI Circuits.

[2]  Atsuo Watanabe,et al.  Future BiCMOS technology for scaled supply voltage , 1989, International Technical Digest on Electron Devices Meeting.

[3]  C. Papadas,et al.  Fast 1V bootstrapped inverter suitable for standard CMOS technologies , 1999 .

[4]  Yeo Kiat Seng,et al.  A novel 1-V full-swing BiCMOS circuit using a positive feedback base-boost technique , 1999, 42nd Midwest Symposium on Circuits and Systems (Cat. No.99CH36356).

[5]  C.A.T. Salama,et al.  Design of a 1.5 V full-swing bootstrapped BiCMOS logic circuit , 1995 .

[6]  S.H.K. Embabi,et al.  A bootstrapped bipolar CMOS (B/sup 2/CMOS) Gate for low-voltage applications , 1995 .

[7]  Mohamed I. Elmasry,et al.  Bootstrapped full-swing BiCMOS/BiNMOS logic circuits for 1.2-3.3 V supply voltage regime , 1995 .

[8]  José C. García,et al.  A direct bootstrapped CMOS large capacitive-load driver circuit , 2004, Proceedings Design, Automation and Test in Europe Conference and Exhibition.

[9]  Yuh-Kuang Tseng,et al.  A 1.5-V differential cross-coupled bootstrapped BiCMOS logic for low-voltage applications , 1998, IEEE J. Solid State Circuits.

[10]  Takashi Nishida,et al.  Quasi-complementary BiCMOS for sub-3-V digital circuits , 1991 .

[11]  T. Nishida,et al.  A 1.5 V full-swing BiCMOS logic circuit , 1992, 1992 IEEE International Solid-State Circuits Conference Digest of Technical Papers.