Title :
A 500-MHz CRT video driver using a linear array
Author :
Kato, Kazuo ; Sase, Takashi ; Sat, Hideo
Author_Institution :
Hitachi Ltd., Ibaraki, Japan
fDate :
6/1/1991 12:00:00 AM
Abstract :
A 500-MHz monolithic video driver integrated circuit (IC) for next-generation leading CRT (cathode ray tube) displays with 4 Mpixels or more is presented. The IC has a 320-mA output current amplifier, a video gain controller, a buffered input multiplexer, and a sample-and-hold bias circuit. Using new open-loop amplifier architecture and novel complementary-bipolar circuitry design, the driver IC with bandwidth fB of 500 MHz is fabricated. It is economically implemented by a 2.5-μm commercially available linear array with a transistor fT of 4 GHz. Its f B/fT ratio (a figure of merit of the driver circuit design) is three times larger than that of the latest conventional design. The driver IC and power transistors are intended to realize a high-output (50·Vp-p), wideband (300 MHz) CRT video amplifier characterized by good output voltage stability (<1%) without high-voltage output feedback for DC restoration
Keywords :
bipolar integrated circuits; cathode-ray tube displays; driver circuits; video amplifiers; 4 Mpixels; 500 MHz; CRT displays; CRT video driver; DC restoration; buffered input multiplexer; complementary-bipolar circuitry design; high-voltage output feedback; linear array; open-loop amplifier architecture; output current amplifier; output voltage stability; power transistors; sample-and-hold bias circuit; video amplifier; video gain controller; Bandwidth; Broadband amplifiers; Cathode ray tubes; Displays; Driver circuits; Monolithic integrated circuits; Multiplexing; Open loop systems; Power generation economics; Power transistors;
Journal_Title :
Solid-State Circuits, IEEE Journal of
