4-, 5-, 6-Channel, Muxed Input Line
Inversion LCD Gamma Buffers
ADD8504/ADD8505/ADD8506
APPLICATIONS
LCD line inversion gamma references
Car navigation panels
Personal media player panels
Automotive infotainment systems
INA1 1
16 OUT1
INB1 2
15 OUT2
INA2 3
14 VCC1
INB2 4
13 A/B
INA3 5
12 GND
INB3 6
11 GND
INA4 7
10 OUT3
INB4 8
9
OUT4
Figure 1. ADD8504, 4-Channel Buffer
INA1 1
20
VCC1
INB1 2
19
OUT1
INA2 3
18
OUT2
INB2 4
17
OUT3
INA3 5
16
VCC2
GENERAL DESCRIPTION
INB3 6
15
A/B
The ADD8504, ADD8505, and ADD8506 are 4-, 5-, and
6-channel LCD gamma reference buffers designed to drive
column driver gamma inputs in line inversion panels. Each
buffer channel has an A/B input to select between two gamma
voltage curves. These buffer channels drive the resistor ladders
of LCD column drivers for gamma correction. The ADD8504/
ADD8505/ADD8506 outputs have high slew rates and output
drives that increase the stability of the reference ladder resulting
in optimal gray scale and visual performance.
INA4 7
14
GND
INB4 8
13
GND
INA5 9
12
OUT4
INB5 10
11
OUT5
The ADD8504/ADD8505/ADD8506 are specified over the
−40°C to +105°C temperature range. They are available, respectively, in 16-, 20-, and 24-lead thin shrink small outline (TSSOP),
surface-mount, Pb-free packages. The ADD8506 is also offered
in a leaded TSSOP.
The ADD8506WWARUZR7 is the automotive grade version.
05549-001
PIN CONFIGURATION DIAGRAMS
05549-002
Single-supply operation: 3.3 V to 6.5 V
Rail-to-rail input, rail-to-rail output
High output current: 380 mA
Low supply current: 3.9 mA
Stable with 1 nF loads
Wide temperature range: −40°C to +105°C
16-, 20-, and 24-lead, Pb-free, TSSOP packages
Qualified for automotive applications
Figure 2. ADD8505, 5-Channel Buffer
INA1 1
24
VCC1
INB1 2
23
OUT1
INA2 3
22
OUT2
INB2 4
21
OUT3
INA3 5
20
VCC2
INB3 6
19
A/B
INA4 7
18
GND
INB4 8
17
GND
INA5 9
16
OUT4
INB5 10
15
OUT5
INA6 11
14
OUT6
INB6 12
13
VCC3
05549-003
FEATURES
Figure 3. ADD8506, 6-Channel Buffer
Rev. D
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113 ©2005–2010 Analog Devices, Inc. All rights reserved.
ADD8504/ADD8505/ADD8506
TABLE OF CONTENTS
Features .............................................................................................. 1
ESD Performance ..........................................................................4
Applications ....................................................................................... 1
ESD Caution...................................................................................4
General Description ......................................................................... 1
Pin Configurations and Function Descriptions ............................5
Pin Configuration Diagrams ........................................................... 1
Typical Performance Characteristics ..............................................6
Revision History ............................................................................... 2
Applications Information .................................................................7
Specifications..................................................................................... 3
Outline Dimensions ..........................................................................8
Electrical Characteristics ............................................................. 3
Ordering Guide .............................................................................9
Absolute Maximum Ratings............................................................ 4
Automotive Ordering Guide ........................................................9
Thermal Resistance ...................................................................... 4
Automotive Products ....................................................................9
REVISION HISTORY
6/10—Rev. C to Rev. D
Change to Features Section, Applications Section, and General
Description Section .......................................................................... 1
Changes to Ordering Guide ............................................................ 9
Added Automotive Ordering Guide and Automotive Products
Section ................................................................................................ 9
10/05—Rev. 0 to Rev. A
Added ADD8504 and ADD8505...................................... Universal
Changes to Specifications Section ...................................................3
Updated Outline Dimensions ..........................................................7
Changes to Ordering Guide .............................................................7
9/05—Revision 0: Initial Version
9/07—Rev. B to Rev. C
Change to General Description ...................................................... 1
Change to Ordering Guide .............................................................. 9
1/06—Rev. A to Rev. B
Added Pin Configurations and Function
Descriptions Section ........................................................................ 5
Added Table 5.................................................................................... 8
Rev. D | Page 2 of 12
ADD8504/ADD8505/ADD8506
SPECIFICATIONS
ELECTRICAL CHARACTERISTICS
VCC = 5 V, TA = 25°C, unless otherwise noted. VIN denotes buffer input voltage; ILOAD denotes load current; RL denotes load resistance;
CL denotes load capacitance.
Table 1.
Parameter
INPUT CHARACTERISTICS
Offset Voltage
Input Common-Mode Voltage Range
Input Bias Current
Voltage Gain
OUTPUT CHARACTERISTICS
Output Voltage High
Output Voltage Low
Output Resistance
Output Short-Circuit Current
POWER SUPPLY
Supply Current
ADD8504
ADD8505
ADD8506
Supply Voltage Range
DYNAMIC PERFORMANCE
Slew Rate
Symbol
Conditions
VOS
VCM
IB
AVO
0 V ≤ VIN ≤ 5 V
Settling Time
LOGIC INPUT CHARACTERISTICS
Input Current Low
Input Current High
Input Voltage Low
tS
Input Voltage High
Min
Typ
Max
Unit
2
20
5
50
mV
V
nA
V/V
0
VIN = 2.5 V
0.985
VOH
VOL
ROUT
ISC
ILOAD = +20 mA
ILOAD = −20 mA
−20 mA ≤ ILOAD ≤ +20 mA; 0.5 V ≤ VIN ≤ 4.5 V
ISY
VIN = 2.5 V
4.75
0.2
120
0.20
380
2.7
3.0
3.9
VCC
SR
IIL
IIH
VIL
VIH
3.3
CL = 15 pF
RL = 250 Ω
CL = 200 pF, RL = 10 kΩ
VIN = 0.0 V
VIN = 5.0 V
VCC = 5.0 V, −40°C ≤ TA ≤ 105°C
VCC = 3.3 V, −40°C ≤ TA ≤ 105°C
VCC = 5.0 V, −40°C ≤ TA ≤ 105°C
VCC = 3.3 V, −40°C ≤ TA ≤ 105°C
Rev. D | Page 3 of 12
7.0
6.2
2.5
3.8
4.4
5.1
6.5
mA
mA
mA
V
6
V/μs
V/μs
μs
100
100
0.8
0.7
1.7
1.4
V
V
Ω
mA
nA
nA
V
V
V
V
ADD8504/ADD8505/ADD8506
ABSOLUTE MAXIMUM RATINGS
THERMAL RESISTANCE
Table 2.
Parameter
Supply Voltage
Input Voltage
Storage Temperature Range
Junction Temperature Range
Lead Temperature (Soldering, 60 sec)
Rating
7V
GND to VCC
−65°C to +150°C
−65°C to +150°C
300°C
Table 3. Thermal Package Characteristics
Model
ADD8504WRUZ
ADD8505WRUZ
ADD8506WRUZ
1
2
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
Package Type
16-Lead Pb-Free TSSOP
20-Lead Pb-Free TSSOP
24-Lead Pb-Free TSSOP
θJA1
150
143
128
θJC2
28
45
45
θJA is specified for natural convection on a two-layer board.
θJC is specified for natural convection on a two-layer board.
ESD PERFORMANCE
Table 4.
Model
ADD8504WRUZ
ADD8505WRUZ
ADD8506WRUZ
1
2
3
HBM1
4.0 kV
3.5 kV
3.5 kV
Human body model.
Machine model.
Field induced charge device model.
ESD CAUTION
Rev. D | Page 4 of 12
MM2
400 V
200 V
200 V
FICDM3
1.0 kV
1.0 kV
1.0 kV
Unit
°C/W
°C/W
°C/W
ADD8504/ADD8505/ADD8506
24
VCC1
INB1 2
23
OUT1
INA2 3
22
OUT2
INA1 1
20
VCC1
INB2 4
21
OUT3
INB1 2
19
OUT1
INA3 5
20
VCC2
INA2 3
18
OUT2
INB3 6
19
A/B
INB2 4
17
OUT3
INA4 7
18
GND
INA3 5
16
VCC2
INB4 8
17
GND
INB3 6
15
A/B
INA5 9
16
OUT4
INA4 7
14
GND
INB5 10
15
OUT5
INB4 8
13
GND
INA6 11
14
OUT6
INA5 9
12
OUT4
INB6 12
13
VCC3
INB5 10
11
OUT5
05549-003
INA1 1
05549-002
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
Figure 5. Pin Configuration, ADD8505, 5-Channel Buffer
INA1 1
16
OUT1
INB1 2
15
OUT2
INA2 3
14
VCC1
INB2 4
13
A/B
INA3 5
12
GND
INB3 6
11
GND
INA4 7
10
OUT3
INB4 8
9
OUT4
05549-001
Figure 4. Pin Configuration, ADD8506, 6-Channel Buffer
Figure 6. Pin Configuration, ADD8504, 4-Channel Buffer
Table 5. Pin Function Descriptions
ADD8506
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17, 18
19
20
21
22
23
24
ADD8505
Pin No.
1
2
3
4
5
6
7
8
9
10
N/A
N/A
N/A
N/A
11
12
13, 14
15
16
17
18
19
20
ADD8504
Pin No.
1
2
3
4
5
6
7
8
N/A
N/A
N/A
N/A
N/A
N/A
N/A
9
11, 12
13
N/A
10
15
16
14
Mnemonic
INA1
INB1
INA2
INB2
INA3
INB3
INA4
INB4
INA5
INB5
INA6
INB6
VCC3
OUT6
OUT5
OUT4
GND
A/B
VCC2
OUT3
OUT2
OUT1
VCC1
Function
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Power In
Output
Output
Output
Ground
Input
Power In
Output
Output
Output
Power In
Description
Channel 1 Buffer Input A.
Channel 1 Buffer Input B.
Channel 2 Buffer Input A.
Channel 2 Buffer Input B.
Channel 3 Buffer Input A.
Channel 3 Buffer Input B.
Channel 4 Buffer Input A.
Channel 4 Buffer Input B.
Channel 5 Buffer Input A.
Channel 5 Buffer Input B.
Channel 6 Buffer Input A.
Channel 6 Buffer Input B.
Power Supply Input. Short to VCC1 and VCC2. Typically connected to 5 V.
Channel 6 Buffer Output.
Channel 5 Buffer Output.
Channel 4 Buffer Output.
Ground.
Switch Control. Logic High selects Input A; Logic Low selects Input B.
Power Supply Input. Short to VCC1 and VCC3. Typically connected to 5 V.
Channel 3 Buffer Output.
Channel 2 Buffer Output.
Channel 1 Buffer Output.
Power Supply Input. Short to VCC2 and VCC3. Typically connected to 5 V.
Rev. D | Page 5 of 12
ADD8504/ADD8505/ADD8506
TYPICAL PERFORMANCE CHARACTERISTICS
5.5
VCM = 2.5V
TA = 25°C
5.0
4.5
5V
SUPPLY CURRENT (mA)
4.0
VCC = 5V
TA = 25°C
3.5
INPUT
3.0
0V
2.5
5V
2.0
1.5
1.0
OUTPUT
0.5
0V
2
3
4
5
6
7
SUPPLY VOLTAGE (V)
CH1 2.00V
Figure 7. Supply Current vs. Supply Voltage
Figure 10. Transient Response—Rising
VCC = 5V
TA = 25°C
5V
INPUT
VCC = 5V
TA = 25°C
100
0V
OUTPUT HIGH
OUTPUT LOW
5V
10
OUTPUT
100
1
10
LOAD CURRENT (mA)
CH1 2.00V
Figure 8. Δ Output Voltage to Supply Rail vs. Load Current
VCC = 5V
VCM = 2.5V
4 CH6
CH2
CH5
0
–2
CH3
CH1
–4
–40
0
25
40
80
90
95
TEMPERATURE (°C)
100
105
05549-006
–6 CH4
–8
M400ns
Figure 11. Transient Response—Falling
6
2
CH2 2.00V
Figure 9. Offset Voltage vs. Temperature
Rev. D | Page 6 of 12
05549-008
0V
1
0.1
VOS (mV)
M400ns
05549-005
Δ OUTPUT VOLTAGE TO SUPPLY RAIL (mV)
1000
CH2 2.00V
05549-007
1
0
05549-004
0
ADD8504/ADD8505/ADD8506
APPLICATIONS INFORMATION
The ADD8504/ADD8505/ADD8506 have CMOS buffers with
A/B inputs to select between two different reference voltages set
up by an external resistor ladder. Input bias currents are orders
of magnitude less than competitive parts. This allows the use of
a very large resistor ladder to save supply current.
Power supply pins on the ADD8505 and ADD8506 have
multiple ground (GND) and supply (VCC) connections.
Because of the high peak currents that these buffers deliver, it
is recommended that all GND and VCC pins be connected and
suitably bypassed.
The buffer outputs are designed to drive resistive or capacitive
loads. Therefore, to attain the best display performance, do not
use resistors in series with these outputs. Outputs have high
slew rates and 6 μs settling times. Each output delivers a minimum of 120 mA, ensuring a fast response to varying loads.
Table 6. Mux Function
A/B Select
Logic High
Logic Low
VCOM
(INVERTING SIGNAL)
5V
0.1μF
RA1
Input
INAx
INBx
5V
0.1μF
RB1
RA2
1
24
2
23
3
22
4
21
5
20
6
19
7
18
8
17
9
16
10
15
10
11
14
12
13
TO COLUMN
DRIVERS
RB2
RA3
RB3
RA4
RB4
RA5
RB5
RA6
RB6
RA7
RB7
0.1μF
NOTES
1. RAx RESISTORS ARE USED TO SET POSITIVE INVERSION GAMMA VOLTAGES.
2. RBx RESISTORS ARE USED TO SET NEGATIVE INVERSION GAMMA VOLTAGES.
Figure 12. ADD8506 Typical Application
Rev. D | Page 7 of 12
05549-009
5V
ADD8504/ADD8505/ADD8506
OUTLINE DIMENSIONS
5.10
5.00
4.90
16
9
4.50
4.40
4.30
6.40
BSC
1
8
PIN 1
1.20
MAX
0.15
0.05
0.30
0.19
0.65
BSC
COPLANARITY
0.10
0.20
0.09
0.75
0.60
0.45
8°
0°
SEATING
PLANE
COMPLIANT TO JEDEC STANDARDS MO-153-AB
Figure 13. 16-Lead Thin Shrink Small Outline Package [TSSOP]
(RU-16)
Dimensions shown in millimeters
6.60
6.50
6.40
20
11
4.50
4.40
4.30
6.40 BSC
1
10
PIN 1
0.65
BSC
1.20 MAX
0.15
0.05
COPLANARITY
0.10
0.30
0.19
0.20
0.09
0.75
0.60
0.45
8°
0°
SEATING
PLANE
COMPLIANT TO JEDEC STANDARDS MO-153-AC
Figure 14. 20-Lead Thin Shrink Small Outline Package [TSSOP]
(RU-20)
Dimensions shown in millimeters
7.90
7.80
7.70
24
13
4.50
4.40
4.30
1
6.40 BSC
12
PIN 1
0.65
BSC
0.15
0.05
0.30
0.19
0.10 COPLANARITY
1.20
MAX
SEATING
PLANE
0.20
0.09
8°
0°
0.75
0.60
0.45
COMPLIANT TO JEDEC STANDARDS MO-153-AD
Figure 15. 24-Lead Thin Shrink Small Outline Package [TSSOP]
(RU-24)
Dimensions shown in millimeters
Rev. D | Page 8 of 12
ADD8504/ADD8505/ADD8506
ORDERING GUIDE
Model 1
ADD8504WRUZ
ADD8504WRUZ-REEL7
ADD8504WRUZ-REEL
ADD8505WRUZ
ADD8505WRUZ-REEL7
ADD8505WRUZ-REEL
ADD8506WRU-REEL7
ADD8506WRUZ
ADD8506WRUZ-REEL7
ADD8506WRUZ-REEL
ADD8504-EVAL
ADD8505-EVAL
ADD8506-EVAL
1
Temperature
Range
−40°C to +105°C
−40°C to +105°C
−40°C to +105°C
−40°C to +105°C
−40°C to +105°C
−40°C to +105°C
−40°C to +105°C
−40°C to +105°C
−40°C to +105°C
−40°C to +105°C
Package Description
16-Lead Thin Shrink Small Outline Package [TSSOP], Tube
16-Lead Thin Shrink Small Outline Package [TSSOP], 7” Tape and Reel
16-Lead Thin Shrink Small Outline Package [TSSOP], 13” Tape and Reel
20-Lead Thin Shrink Small Outline Package [TSSOP], Tube
20-Lead Thin Shrink Small Outline Package [TSSOP], 7” Tape and Reel
20-Lead Thin Shrink Small Outline Package [TSSOP], 13” Tape and Reel
24-Lead Thin Shrink Small Outline Package [TSSOP], 7” Tape and Reel
24-Lead Thin Shrink Small Outline Package [TSSOP], Tube
24-Lead Thin Shrink Small Outline Package [TSSOP], 7” Tape and Reel
24-Lead Thin Shrink Small Outline Package [TSSOP], 13” Tape and Reel
Evaluation Board
Evaluation Board
Evaluation Board
Package
Option
RU-16
RU-16
RU-16
RU-20
RU-20
RU-20
RU-24
RU-24
RU-24
RU-24
Ordering
Quantity
96
1,000
2,500
75
1,000
2,500
1,000
62
1,000
2,500
Package
Option
RU-24
Ordering
Quantity
1,000
Z = RoHS Compliant Part.
AUTOMOTIVE ORDERING GUIDE
Automotive Model1
ADD8506WWARUZR7
1
Temperature
Range
−40°C to +105°C
Package Description
24-Lead Thin Shrink Small Outline Package [TSSOP], 7” Tape and Reel
Qualified for automotive applications.
AUTOMOTIVE PRODUCTS
The ADD8506WWARUZR7 model is available with controlled manufacturing to support the quality and reliability requirements of
automotive applications. Note that the automotive model may have specifications that differ from the commercial models; therefore,
designers should review the Specifications section of this data sheet carefully. Only the automotive grade product shown is available for
use in automotive applications. Contact your local Analog Devices account representative for specific product ordering information and
to obtain the specific Automotive Reliability reports for this model.
Rev. D | Page 9 of 12
ADD8504/ADD8505/ADD8506
NOTES
Rev. D | Page 10 of 12
ADD8504/ADD8505/ADD8506
NOTES
Rev. D | Page 11 of 12
ADD8504/ADD8505/ADD8506
NOTES
©2005–2010 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
D05549-0-6/10(D)
Rev. D | Page 12 of 12