SBOS269A MARCH 2003 REVISED JUNE 2003
MULTI CHANNEL LCD GAMMA CORRECTION BUFFER
BUF07703
BUF06703
BUF05703
FEATURES
D
Gamma Correction Channels: 6, 4
D
Integrated V
COM
Buffer
D
Excellent Output Current Drive:
Gamma Channels: > 10mA
V
COM
: > 100mA typ
D
Large Capacitive Load Drive Capability
D
Rail-to-Rail Output
D
PowerPAD Package: BUF07703
D
Low-Power/Channel: < 250
A
D
Wide Supply Range: 4.5V to 16V
D
Specified for 0
C to 85
C
D
High ESD Rating: 4kV HBM, 1.5kV CDM
APPLICATIONS
D
LCD Flat Panel Displays
D
LCD Television Displays
MODEL
GAMMA
CHANNELS
VCOM CHANNELS
BUF07703
6
1
BUF06703
6
0
BUF05703
4
1
RELATED PRODUCTS
MODEL
GAMMA
CHANNELS
VCOM CHANNELS
BUF11702
10
1
BUF04701
4
--
TLV2374
4
--
DESCRIPTION
The BUFxx703 are a series of multi-channel buffers
targeted towards gamma correction in high-resolution
liquid crystal display (LCD) panels. The number of
gamma correction channels required depends on a
variety of factors and differs greatly from design to
design. Therefore, various channel options are offered.
For additional space and cost savings, a V
COM
channel
with higher current drive capability is integrated in the
BUF07703 and BUF05703.
A flow through pin out has been adopted to allow simple
PCB routing and maintain the cost effectiveness of this
solution. All inputs and outputs of the BUFxx703
incorporate internal ESD protection circuits that prevent
functional failures at voltages up to 4kV HBM and 1.5kV
CDM.
The various buffers within the BUFxx703 are carefully
matched to the voltage I/O requirements for the gamma
correction application. Each buffer is capable of driving
heavy capacitive loads and offers fast load current
switching. The V
COM
channel has increased output
drive of > 100mA and can handle even larger capacitive
loads.
The BUF07703 is available in the HTSSOP
PowerPAD
package for dramatically increased power
dissipation capability. The BUF06703 and BUF05703
are available in standard TSSOP-16 and TSSOP-14
packages.
www.ti.com
Copyright
2003, Texas Instruments Incorporated
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments
semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date. Products
conform to specifications per the terms of Texas Instruments standard warranty.
Production processing does not necessarily include testing of all parameters.
PowerPAD is a trademark of Texas Instruments. All other trademarks are the property of their respective owners.
BUF07703
BUF06703
BUF05703
SBOS269A MARCH 2003 REVISED JUNE 2003
www.ti.com
2
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate
precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to
damage because very small parametric changes could cause the device not to meet its published specifications.
ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature range unless otherwise noted(1)
PARAMETERS
BUFXX703
UNIT
Supply, VDD(2)
16.5
V
Input Voltage Range, VI
VDD
V
Continuous Total Power Dissipation
See Dissipation Rating Table
Operating FreeAir Temperature Range, TA
0 to +85
C
Maximum Junction Temperature, TJ
150
C
Storage Temperature Range, TSTG
65 to 150
C
Lead Temperature 1.6mm (1/16 inch) from Case for 10s
260
C
(1) Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) All voltage values are with respect to GND.
ORDERING INFORMATION
PRODUCT
PACKAGELEAD
PACKAGE
DESIGNATOR(1)
SPECIFIED
TEMPERATURE
RANGE
ORDERING
NUMBER
TRANSPORT MEDIA,
QUANTITY
BUF07703
HTSSOP 20
PWP
0
C to 85
C
BUF07703PWP
Tube, 70
BUF07703
HTSSOP20
PWP
0
C to +85
C
BUF07703PWPR
Reels, 2000
BUF06703
TSSOP 16
PW
0
C to 85
C
BUF06703PW
Tube, 90
BUF06703
TSSOP16
PW
0
C to +85
C
BUF06703PWR
Reels, 2000
BUF05703
TSSOP 14
PW
0
C to 85
C
BUF05703PW
Tube. 90
BUF05703
TSSOP14
PW
0
C to +85
C
BUF05703PWR
Reels, 2000
(1) For the most current specification and package information, refer to our web site at www.ti.com.
DISSIPATION RATING TABLE
PACKAGE TYPE
PACKAGE
DESIGNATOR
JC
( C/W)
JA
( C/W)
TA
25
C
POWER RATING
TSSOP20 PowerPAD
PWP (20)
1.40(1)
32.63(1)
3.83W(1)
TSSOP16
PW (16)
--
108
1.15W
TSSOP14
PW (14)
--
112
1.11W
(1) Thermal specifications assume 2oz trace and copper pad with solder.
RECOMMENDED OPERATING CONDITIONS
MIN
NOM
MAX
UNI
T
Supply Voltage, VDD
4.5
16
V
Operating Free-Air Temperature, TA
0
+85
C
Junction Temperature
TSSOP-20 PowerPAD
+125
C
Junction Temperature
TSSOP-16, 14
+150
C
BUF07703
BUF06703
BUF05703
SBOS269A MARCH 2003 REVISED JUNE 2003
www.ti.com
3
EQUIVALENT SCHEMATICS OF INPUTS AND OUTPUTS
Next
Stage
Buffer
Output
VS
Buffer
Input
GND
Buffer
Output
Buffer
Input
VS
Next Stage
GND
INPUT STAGE OF BUFFERS
INPUT STAGE OF BUFFERS
BUF07703: 4 to 6
BUF06703: 4 to 6
BUF05703: 3 to 4
Previous
Stage
VS
Buffer
Output
Previous
Stage
Inverting
Input
GND
OUTPUT STAGE OF ALL BUFFERS
BUF07703: 1 to 3 and VCOM
BUF06703: 1 to 3
BUF05703: 1 to 2 and VCOM
ELECTRICAL CHARACTERISTICS
over operating free-air temperature range, VDD = 4.5V to 16V, TA = 25
C, unless otherwise noted.
PARAMETER
TEST CONDITIONS
TA
MIN
TYP
MAX
UNIT
25
C
1.5
12
VIO
Input offset voltage
VI = VDD/2, RS = 50
Full
Range(1)
15
mV
25
C
1
IIB
Input bias current
VI = VDD/2
Full
Range(1)
200
pA
25
C
62
80
kSVR
Supply voltage rejection ratio (
VDD/
VIO)
VDD = 4.5V to 16V
Full
Range(1)
60
dB
Buffer gain
VI = 5V
25
C
0.9995
V/V
BW_3dB
3dB Bandwidth
Gamma Buffers
VCOM Buffer
CL = 100pF, RL = 2k
25
C
0.8
0.7
MHz
SR
Slew Rate
Gamma Buffers
VCOM Buffer
CL = 100pF, RL = 2k
VIN = 2V to 8V
25
C
1
0.7
V/
s
Transient Load Regulation
IO = 0 to
5mA VO = 5V
CL = 100pF tT = 0.1
s
25
C
900
mV
Transient Load Response
See Figure 2
25
C
160
mV
tS (Isink)
Settling TimeCurrent
IO = 0 to 5mA VO = 5V
CL = 100pF RL = 2k
Full
Range(1)
1
s
tS (Isrc)
Settling TimeCurrent
IO = 0 to +5mA VO = 5V
CL = 100pF RL = 2k
Full
Range(1)
2
s
tS
Settling Time
Gamma Buffers
VI = 4.5V to 5.5V 0.1%
VI = 5.5V to 4.5V 0.1%
25
C
6
4.6
s
tS
Settling Time
Voltage
VCOM Buffer
VI = 4.5V to 5.5V 0.1%
VI = 5.5V to 4.5V 0.1%
25
C
5.8
5.6
s
Vn
Noise Voltage
Gamma Buffers
VCOM Buffer
VI = 5V f = 1kHz
25
C
45
40
nv/
Hz
Crosstalk
VIPP = 6V, f = 1kHz
25
C
85
dB
(1) Full Range is 0
C to +85
C.
BUF07703
BUF06703
BUF05703
SBOS269A MARCH 2003 REVISED JUNE 2003
www.ti.com
4
ELECTRICAL CHARACTERISTICS: BUF07703
over operating free-air temperature range, VDD = 4.5V to 16V, TA = 25
C, unless otherwise noted.
PARAMETER
TEST CONDITIONS
TA(1)
MIN
TYP
MAX
UNIT
IDD
Supply Current
ALL
VO = VDD/2, VI = VDD/2
25
C
1.7
2
mA
IDD
Supply Current
ALL
VO = VDD/2, VI = VDD/2
VDD = 10V
Full Range
3
mA
Buffers 13
1
VDD
Common Mode Input Range
Buffers 46
25
C
0
VDD1
V
Common Mode In ut Range
VCOM Buffer
25 C
1
VDD
V
VCOM buffer sinking
VDD = 10V,
25
C
1
1.2
VCOM buffer sinking
VDD = 10V,
IO = 1mA to 30mA
Full Range
2.5
VCOM buffer sourcing
VDD = 10V,
25
C
1
1.2
Load regulation
VCOM buffer sourcing
VDD = 10V,
IO = 1mA to 30mA
Full Range
2.5
mV/mA
Load regulation
Buffers 1 6 sinking
VDD = 10V,
25
C
0.85
1
mV/mA
Buffers 16 sinking
VDD = 10V,
IO = 1mA to 10mA
Full Range
1.5
Buffers 1 6 sourcing
VDD = 10V,
25
C
0.85
1
Buffers 16 sourcing
VDD = 10V,
IO = 1mA to 10mA
Full Range
1.5
VOSH1
High-level
saturated output
Buffer 1
VDD = 16V,
IO = 5mA,
25
C
15.85
15.9
V
VOSH1
g
saturated output
voltage
Buffer 1
VDD = 16V,
VI = 16V
IO = 5mA,
Full range
15.8
V
VOSL6
Low-level
saturated output
Buffer 6
VDD = 16V,
IO = 5mA,
25
C
0.1
0.15
V
VOSL6
saturated output
voltage
Buffer 6
VDD = 16V,
VI = 0V
IO = 5mA,
Full range
0.2
V
VOH1
Buffer 1
VDD = 10V,
IO = 10mA,
25
C
9.75
9.8
V
VOH1
Buffer 1
VDD = 10V,
VI = 9.8V
IO = 10mA,
Full range
9.7
V
VOH2/3
Buffer 2/3
VDD = 10V,
IO = 10mA,
25
C
9.45
9.5
V
VOH2/3
Buffer 2/3
VDD = 10V,
VI = 9.5V
IO = 10mA,
Full range
9.4
V
VOH4/5
High-level output
Buffer 4/5
VDD = 10V,
IO = 10mA,
25
C
7.95
8
V
VOH4/5
High-level out ut
voltage
Buffer 4/5
VDD = 10V,
VI = 8V
IO = 10mA,
Full range
7.9
V
VOH6
Buffer 6
VDD = 10V,
IO = 10mA,
25
C
7.95
8
V
VOH6
Buffer 6
VDD = 10V,
VI = 8V
IO = 10mA,
Full range
7.9
V
VOHCOM
VCOM Buffer
VDD = 10 V,
IO = 30mA,
25
C
7.95
8
V
VOHCOM
VCOM Buffer
VDD = 10 V,
VI = 8V
IO = 30mA,
Full range
7.9
V
VOL1
Buffer 1
VDD = 10V,
IO = 10mA,
25
C
2
2.05
V
VOL1
Buffer 1
VDD = 10V,
VI = 2 V
IO = 10mA,
Full range
2.1
V
VOL2/3
Buffer 2/3
VDD = 10V,
IO = 10mA,
25
C
2
2.05
V
VOL2/3
Buffer 2/3
VDD = 10V,
VI = 2 V
IO = 10mA,
Full range
2.1
V
VOL4/5
Low-level output
Buffer 4/5
VDD = 10V,
IO = 10mA,
25
C
0.5
0.55
V
VOL4/5
Low-level out ut
voltage
Buffer 4/5
VDD = 10V,
VI = 0.5 V
IO = 10mA,
Full range
0.6
V
VOL6
Buffer 6
VDD = 10V,
IO = 10mA,
25
C
0.2
0.25
V
VOL6
Buffer 6
VDD = 10V,
VI = 0.2 V
IO = 10mA,
Full range
0.3
V
V
V
Buffer
VDD = 10V,
IO = 30mA,
25
C
2
2.05
V
VOLCOM
VCOM Buffer
VDD = 10V,
VI = 2V
IO = 30mA,
Full range
2.1
V
(1) Full Range is 0
C to +85
C.
BUF07703
BUF06703
BUF05703
SBOS269A MARCH 2003 REVISED JUNE 2003
www.ti.com
5
ELECTRICAL CHARACTERISTICS: BUF06703
over operating free-air temperature range, VDD = 4.5V to 16V, TA = 25
C, unless otherwise noted.
PARAMETER
TEST CONDITIONS
TA(1)
MIN
TYP
MAX
UNIT
IDD
Supply Current
ALL
VO = VDD/2, VI = VDD/2
25
C
1.7
2
mA
IDD
Supply Current
ALL
VO = VDD/2, VI = VDD/2
VDD = 10V
Full Range
3
mA
Common Mode Input Range
Buffers 13
25
C
1
VDD
V
Common Mode Input Range
Buffers 46
25
C
0
VDD1
V
Buffers 1 6 sinking
VDD = 10V,
25
C
0.85
1
Load regulation
Buffers 16 sinking
VDD = 10V,
IO = 1mA to 10mA
Full Range
1.5
mV/mA
Load regulation
Buffers 1 6 sourcing
VDD = 10V,
25
C
0.85
1
mV/mA
Buffers 16 sourcing
VDD = 10V,
IO = 1mA to 10mA
Full Range
1.5
VOSH1
High-level
saturated output
Buffer 1
VDD = 16V,
IO = 5mA,
25
C
15.85
15.9
V
VOSH1
g
saturated output
voltage
Buffer 1
VDD = 16V,
VI = 16V
IO = 5mA,
Full range
15.8
V
VOSL6
Low-level
saturated output
Buffer 6
VDD = 16V,
IO = 5mA,
25
C
0.1
0.15
V
VOSL6
saturated output
voltage
Buffer 6
VDD = 16V,
VI = 0V
IO = 5mA,
Full range
0.2
V
VOH1
Buffer 1
VDD = 10V,
IO = 10mA,
25
C
9.75
9.8
V
VOH1
Buffer 1
VDD = 10V,
VI = 9.8V
IO = 10mA,
Full range
9.7
V
VOH2/3
Buffer 2/3
VDD = 10V,
IO = 10mA,
25
C
9.45
9.5
V
VOH2/3
High-level output
Buffer 2/3
VDD = 10V,
VI = 9.5V
IO = 10mA,
Full range
9.4
V
VOH4/5
High-level out ut
voltage
Buffer 4/5
VDD = 10V,
IO = 10mA,
25
C
7.95
8
V
VOH4/5
Buffer 4/5
VDD = 10V,
VI = 8V
IO = 10mA,
Full range
7.9
V
VOH6
Buffer 6
VDD = 10V,
IO = 10mA,
25
C
7.95
8
V
VOH6
Buffer 6
VDD = 10V,
VI = 8V
IO = 10mA,
Full range
7.9
V
VOL1
Buffer 1
VDD = 10V,
IO = 10mA,
25
C
2
2.05
V
VOL1
Buffer 1
VDD = 10V,
VI = 2 V
IO = 10mA,
Full range
2.1
V
VOL2/3
Buffer 2/3
VDD = 10V,
IO = 10mA,
25
C
2
2.05
V
VOL2/3
Low-level output
Buffer 2/3
VDD = 10V,
VI = 2 V
IO = 10mA,
Full range
2.1
V
VOL4/5
Low-level out ut
voltage
Buffer 4/5
VDD = 10V,
IO = 10mA,
25
C
0.5
0.55
V
VOL4/5
Buffer 4/5
VDD = 10V,
VI = 0.5 V
IO = 10mA,
Full range
0.6
V
V
Buffer 6
VDD = 10V,
IO = 10mA,
25
C
0.2
0.25
V
VOL6
Buffer 6
VDD = 10V,
VI = 0.2 V
IO = 10mA,
Full range
0.3
V
(1) Full Range is 0
C to +85
C.
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