LM6584

TFT-LCD Quad, 13V RRIO High Output Current

Operational Amplifier

General Description

The LM6584 is a low power, high voltage, rail-to-rail input-

output amplifier ideally suited for LCD panel V

gamma buffer applications. The LM6584 contains four unity

gain stable amplifiers in one package. It provides a common

mode input ability of 0.5V beyond the supply rails, as well as

an output voltage range that extends to within 50mV of either

supply rail. With these capabilities, the LM6584 provides

maximum dynamic range at any supply voltage. Operating

on supplies ranging from 5V to 13V, while consuming only

750µA per amplifier, the LM6584 has a bandwidth of 24MHz

(−3dB).

The LM6584 also features fast slewing and settling times,

along with a high continuous output capability of 75mA. This

output stage is capable of delivering approximately 310mA

peak currents in order to charge or discharge capacitive

loads. These features are ideal for use in TFT-LCDs.

The LM6584 is available in the industry standard 14-pin SO

package and in the space-saving 14-pin TSSOP package.

The amplifiers are specified for operation over the full −40˚C

to +85˚C temperature range.

Features

(V

n

Input common mode voltage

0.5V beyond rails

n

Output voltage swing (R

Ω)

50mV from rails

n

Output short circuit current

+310/−410mA

n

Continuous output current

75mA

n

Supply current (per amp, no load)

750µA

n

Supply voltage range

5V to 13V

n

Unity gain stable

n

−3dB bandwidth (A

24MHz

n

Slew rate

11V/µSec

n

Settling time

270ns

n

SO-14 and TSSOP-14 package

n

Manufactured in National Semiconductor’s

state-of-the-art bonded wafer, trench isolated

performance at low power levels

Applications

n

LCD panel V

n

LCD panel gamma buffer

n

LCD panel repair amp

Test Circuit Diagram

20059201

March 2005

© 2005 National Semiconductor Corporation

DS200592

www.national.com