LM2412A Datasheet, PDF (1/11 Pages) National Semiconductor (TI) – Monolithic Triple 2.8 ns CRT Driver

February 2001
LM2412A
Monolithic Triple 2.8 ns CRT Driver
General Description
The LM2412A is an integrated high voltage CRT driver circuit
designed for use in high resolution color monitor applica-
tions. The IC contains three high input impedance, wide
band amplifiers which directly drive the RGB cathodes of a
CRT. Each channel has its gain internally set to −14 and can
drive CRT capacitive loads as well as resistive loads pre-
sented by other applications, limited only by the package’s
power dissipation.
The IC is packaged in an industry standard 11 lead TO-220
molded plastic power package. See thermal considerations
section for heat sinking requirements.
Features
n Rise/fall times typically 2.8 ns with 8 pF load at 40 V_PP
n Faster Maximum Rise/Fall time than LM2412, 3.2nsec
vs 3.5nsec.
n Well matched with LM2202 video preamps
n Output swing capability: 50 V_PP for V_CC = 80V
n 1V to 5V input range
n Stable with 0-20 pF capacitive loads and inductive
peaking networks
n Convenient TO-220 staggered lead package style
n Standard LM240X family pinout which is designed for
easy PCB layout
Applications
n CRT driver for color monitors with display resolutions up
to 1600 x 1200 with 85 Hz refresh rate
n Pixel clock frequency up to 200 MHz
Schematic and Connection Diagrams
DS200124-1
FIGURE 1. Simplified Schematic Diagram
(One Channel)
DS200124-2
Top View
Order Number LM2412ATA
See NS package Number
© 2001 National Semiconductor Corporation DS200124
www.national.com