lm2412ata National Semiconductor Corporation, lm2412ata Datasheet

lm2412ata

Manufacturer Part Number

lm2412ata

Description

Monolithic Triple 2.8 Ns Crt Driver

Manufacturer

National Semiconductor Corporation

Datasheet

1.LM2412ATA.pdf (11 pages)

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LM2412

Monolithic Triple 2.8 ns CRT Driver

General Description

The LM2412 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 LM2412 is a low power alternative of

the LM2402

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

Schematic and Connection Diagrams

FIGURE 1. Simplified Schematic Diagram

(One Channel)

DS101298

DS101298-1

n Lower power than LM2402 with the same bandwidth

n Well matched with LM2202 video preamps

n Output swing capability: 50 V

n 1V to 5V input range

n Stable with 0-20 pF capacitive loads and inductive

n Convenient TO-220 staggered lead package style

n Standard LM240X family pinout which is designed for

Applications

n CRT driver for color monitors with display resolutions up

n Pixel clock frequency up to 200 MHz

peaking networks

easy PCB layout

to 1600 x 1200 with 85 Hz refresh rate

See NS package Number

Order Number LM2412T

Top View

for V

= 80V

December 1999

DS101298-2

www.national.com

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