论文信息 - Analog video line driver with adaptive impedance matching

Analog video line driver with adaptive impedance matching

Here a line driver is presented without loss of voltage or current in the output impedance. The buffer automatically adapts its output impedance to the load impedance. The buffer output impedance is insensitive to process variations and the buffer automatically re-adapts its output impedance if a cable with another impedance is connected. The line driver is implemented in 0.35 /spl mu/m standard CMOS.

B. Nauta | M. Dijkstra

[1] P. Senn,et al. A 130 MHz 8-Bit CMOS Video DAC for HDTV Applications , 1990, ESSCIRC '90: Sixteenth European Solid-State Circuits Conference.

[2] T. J. Gabara,et al. Digitally adjustable resistors in CMOS for high-performance applications , 1992 .

[3] Bram Nauta,et al. A CMOS "soft-switched" transconductor and its application in gain control and filters , 1997 .

[4] T. F. Knight,et al. A self-terminating low-voltage swing CMOS output driver , 1988 .

[5] M.J.M. Pelgrom. A 10-b 50-MHz CMOS D/A converter with 75- Omega buffer , 1990 .