LM6584 TFT-LCD Quad, 13V RRIO High Output Current Operational Amplifier
March 2005
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
COM
driver and
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
750碌A(chǔ) per amplifier, the LM6584 has a bandwidth of 24MHz
(鈭?dB).
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 鈭?0藲C
to +85藲C temperature range.
Features
(V
S
= 5V, T
A
= 25藲C typical values unless specified)
n
Input common mode voltage
0.5V beyond rails
n
Output voltage swing (R
L
= 2k鈩?
50mV from rails
n
Output short circuit current
+310/鈭?10mA
n
Continuous output current
75mA
n
Supply current (per amp, no load)
750碌A(chǔ)
n
Supply voltage range
5V to 13V
n
Unity gain stable
n
鈭?dB bandwidth (A
V
= +1)
24MHz
n
Slew rate
11V/碌Sec
n
Settling time
270ns
n
SO-14 and TSSOP-14 package
n
Manufactured in National Semiconductor鈥檚
state-of-the-art bonded wafer, trench isolated
complementary bipolar VIP10
鈩?/div>
technology for high
performance at low power levels
Applications
n
LCD panel V
COM
driver
n
LCD panel gamma buffer
n
LCD panel repair amp
Test Circuit Diagram
20059201
漏 2005 National Semiconductor Corporation
DS200592
www.national.com
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