Title :
Analog line driver with adaptive impedance matching
Author :
Nauta, Bram ; Dijkstra, Marcel B.
Author_Institution :
Philips Res. Lab., Eindhoven, Netherlands
fDate :
12/1/1998 12:00:00 AM
Abstract :
A new principle for an adaptive line driver is presented. This type of line driver can adapt its output impedance automatically to the applied load. This results in automatically corrected output impedance for different cables with terminations. Also, the line-driver output impedance becomes insensitive to process variations. As an example, a line driver for analog video signals has been designed. The circuit operates from a 2.4-V supply in a 0.35-μm CMOS technology. The realized circuit adapts between 38 and 85 Ω loads, has total harmonic distortion of <-50 dB at 1.2 Vpp for 0-10 MHz, 0.09-mm2 area, and 9-mW static power consumption
Keywords :
CMOS analogue integrated circuits; driver circuits; impedance matching; video signals; 0 to 10 MHz; 0.35 micron; 2.4 V; 9 mW; CMOS circuit; adaptive impedance matching; analog line driver; cable termination; static power consumption; total harmonic distortion; video signal; CMOS technology; Cables; Driver circuits; Impedance matching; Laboratories; Optical losses; Power transmission lines; Resistors; Transconductance; Voltage;
Journal_Title :
Solid-State Circuits, IEEE Journal of
