1
FN7368
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
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Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2004. All Rights Reserved. Elantec is a registered trademark of Elantec Semiconductor, Inc.
All other trademarks mentioned are the property of their respective owners.
PRELIMINARY
EL5228
V
COM
with Dual Gamma Buffer
The EL5228 integrates a high power
V
COM
amplifier with dual gamma
reference voltage buffers. With 180mA
peak and 65mA typical output current, the V
COM
amplifier is
suitable for all sizes of LCD displays. The dual gamma
buffers can output 30mA typical, 120mA peak and feature a
bandwidth of 12MHz and a slew rate of 15V/s. The V
COM
amplifier has a 44MHz bandwidth and 80V/s slew rate.
The EL5228 operates from just 3.5mA typical supply current
and is packaged in the high-power DFN-10 package. It is
specified for operation over the -40C to +85C temperature
range.
Pinout
EL5228
(10-PIN DFN)
TOP VIEW
TOP VIEW
Features
High power V
COM
amplifier
- 180mA peak (65mA typ.) output current
- 55MHz bandwidth
- 75V/s slew rate
Dual gamma buffers
- 120mA peak (30mA typ.) output current
- 12MHz bandwidth
- 10V/s slew rate
Just 3.5mA supply current
Small DFN-10 package
Applications
TFT-LCD displays
Flat panel monitors
Notebook displays
LCD-TVs
1
2
3
4
10
9
8
7
5
6
THERMAL
PAD
VOUTA
VINA
VDD
VINC+
VOUTB
VINB
VSS
NC
VOUTC
VINC-
Ordering Information
PART
NUMBER
PACKAGE
TAPE & REEL
PKG. DWG. #
EL5228IL
10-Pin DFN
-
MDP0047
EL5228IL-T13
10-Pin DFN
13"
MDP0047
EL5228IL-T7
10-Pin DFN
7"
MDP0047
Data Sheet
March 25, 2004
2
Absolute Maximum Ratings
(T
A
= 25C)
V
CC
Supply Voltage between VS and GND . . . . . . . . . . . . . . TBD
Supply Voltage between VSD and GND . . . . . . . . . . . . . . . . . . TBD
Maximum Continuous Output Current . . . . . . . . . . . . . . . . . . . . TBD
Ambient Operating Temperature . . . . . . . . . . . . . . . . . . . . . . . . TBD
Maximum Die Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . TBD
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TBD
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Curves
CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
IMPORTANT NOTE: All parameters having Min/Max specifications are guaranteed. Typical values are for information purposes only. Unless otherwise noted, all tests
are at the specified temperature and are pulsed tests, therefore: T
J
= T
C
= T
A
Electrical Specifications
V
S
+ = +15V, V
S
- = 0V, R
L
= 1k
to 7.5V, T
A
= 25C unless otherwise specified
.
PARAMETER
DESCRIPTION
CONDITION
MIN
TYP
MAX
UNIT
GAMMA BUFFER INPUT CHARACTERISTICS
V
OS
Input Offset Voltage
V
CM
= 7.5V
2
14
mV
TCV
OS
Average Offset Voltage Drift
(Note 1)
5
V/C
I
B
Input Bias Current
V
CM
= 7.5V
2
50
nA
R
IN
Input Impedance
1
G
C
IN
Input Capacitance
2
pF
A
V
Voltage Gain
0.5
V
OUT
14.5V, R
L
= 10k
0.995
1.005
V/V
GAMMA BUFFER OUTPUT CHARACTERISTICS
V
OL
Output Swing Low
I
L
= -5mA
80
150
mV
V
OH
Output Swing High
I
L
= 5mA
14.85
14.92
V
I
SC
Short Circuit Current
Short to GND (Note 2)
80
120
mA
GAMMA BUFFER DYNAMIC PERFORMANCE
SR
Slew Rate (Note 3)
1V
V
OUT
14V, 20% to 80%, R
L
= 10k
7
10
V/s
t
S
Settling to +0.1%
V
O
= 2V Step
500
ns
BW
-3dB Bandwidth
R
L
= 10k
, C
L
= 10pF
12
MHz
CS
Channel Separation
f = 5MHz
75
dB
V
COM
AMPLIFIER INPUT CHARACTERISTICS
V
OS
Input Offset Voltage
V
CM
= 7.5V
3
15
mV
TCV
OS
Average Offset Voltage Drift (Note 4)
7
V/C
I
B
Input Bias Current
V
CM
= 7.5V
2
60
nA
R
IN
Input Impedance
1
G
C
IN
Input Capacitance
2
pF
CMIR
Common-Mode Input Range
-0.5
+15.5
V
CMRR
Common-Mode Rejection Ratio
for V
IN
from -0.5V to 15.5V
53
72
dB
A
VOL
Open-Loop Gain
0.5V
V
OUT
14.5V
62
70
dB
V
COM
AMPLIFIER OUTPUT CHARACTERISTICS
V
OL
Output Swing Low
I
L
= -5mA
80
150
mV
V
OH
Output Swing High
I
L
= 5mA
14.85
14.92
V
I
SC
Short-circuit Current
180
mA
I
OUT
Output Current
65
mA
EL5228
3
All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems.
Intersil Corporation's quality certifications can be viewed at www.intersil.com/design/quality
Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without
notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and
reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result
from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see www.intersil.com
Typical Application Diagram
V
COM
AMPLIFIER DYNAMIC PERFORMANCE
SR
Slew Rate (Note 5)
1V
V
OUT
14V, 20% to 80%
75
V/s
t
S
Settling to +0.1% (A
V
= +1)
(A
V
= +1), V
O
= 2V step
80
ns
BW
-3dB Bandwidth
60
MHz
GBWP
Gain-Bandwidth Product
32
MHz
PM
Phase Margin
50
d
G
Differential Gain (Note 6)
R
F
= R
G
= 1k
and V
OUT
= 1.4V
0.16
%
d
P
Differential Phase (Note 6)
R
F
= R
G
= 1k
and V
OUT
= 1.4V
0.22
POWER SUPPLY PERFORMANCE
PSRR
Power Supply Rejection Ratio
V
S
is moved from 4.5V to 15.5V
60
80
dB
I
S
Supply Current
No load
3.5
5
mA
NOTES:
1. Measured over the operating temperature range
2. Parameter is guaranteed (but not test) by design and characterization data
3. Slew rate is measured on rising and falling edges
4. Measured over operating temperature range
5. Slew rate is measured on rising and falling edges
6. NTSC signal generator used
Electrical Specifications
V
S
+ = +15V, V
S
- = 0V, R
L
= 1k
to 7.5V, T
A
= 25C unless otherwise specified
.
PARAMETER
DESCRIPTION
CONDITION
MIN
TYP
MAX
UNIT
OUTA
VS+
OUTB
OUTC
INA
VS-
INB
INC+
INC-
-
+
EL5228
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