AD AD8509ARUZ-REEL 9- and 11-channel, muxed input lcd reference driver Datasheet

9- and 11-Channel, Muxed Input
LCD Reference Buffers
AD8509/AD8511
FEATURES
FUNCTIONAL BLOCK DIAGRAM
Single-supply operation: 3.3 V to 6.5 V
High output current: 300 mA
Low supply current: 6 mA
Stable with 1000 pF loads
Pin-compatible with LMC6009
Pin-compatible with CL-FP6131
48-lead, Pb-free, TSSOP package
INA1
VO1
INB1
INA2
VO2
INB2
INA11
VO11
03237-001
INB11
APPLICATION
A/B
LCD line inversion gamma references
Figure 1.
GENERAL DESCRIPTION
The AD8509 and AD8511 are specified over the −40°C to +85°C
temperature range. They are available in 48-lead, thin shrink
small outline (TSSOP), surface-mount, Pb-free packages in tape
and reel.
NC 1
48
NC
NC 1
48
NC
NC 2
47
NC
INA1 2
47
VO1
NC 3
46
NC
INB1 3
46
NC
INA1 4
45
NC
INA2 4
45
NC
INB1 5
44
VCC
INB2 5
44
VCC
INA2 6
43
GND
INA3 6
43
GND
INB2 7
42
VO1
INB3 7
42
VO2
INA3 8
41
VO2
INA4 8
41
VO3
INB3 9
40
VO3
INB4 9
40
VO4
INA4 10
39
VO4
INA5 10
39
VO5
INB4 11
AD8509
38
VCC
INB5 11
AD8511
38
VCC
INA5 12
TOP VIEW
(Not to Scale)
37
GND
INA6 12
TOP VIEW
(Not to Scale)
37
GND
INB5 13
36
VO5
INB6 13
36
VO6
INA6 14
35
VO6
INA7 14
35
VO7
INB6 15
34
VO7
INB7 15
34
VO8
INA7 16
33
VO8
INA8 16
33
VO9
INB7 17
32
VO9
INB8 17
32
VO10
INA8 18
31
GND
INA9 18
31
GND
INB8 19
30
VCC
INB9 19
30
VCC
INA9 20
29
A/B
INA10 20
29
A/B
INB9 21
28
NC
INB10 21
28
NC
NC 22
27
NC
NC 22
27
NC
NC 23
26
NC
INA11 23
26
VO11
NC 24
25
NC
INB11 24
25
NC
NC = NO CONNECT
NC = NO CONNECT
03237-002
The AD8509 and AD8511 are 9-channel and 11-channel LCD
reference buffers, respectively, designed to drive 64 gray scale
column drivers. Each buffer has an A/B input to select between
two voltages for LCD displays. These buffers drive the resistor
ladders of LCD column drivers for gamma correction. These
LCD drivers have higher slew rates and higher output drive
currents than similar competitive parts. This increases the
stability of the reference ladder, resulting in better gray scale
and visual performance.
PIN CONFIGURATIONS
Figure 2. AD8509 and AD8511 48-Lead TSSOP (RU Suffix)
Rev. B
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: 781.326.8703
© 2005 Analog Devices, Inc. All rights reserved.
AD8509/AD8511
TABLE OF CONTENTS
Specifications..................................................................................... 3
Electrical Characteristics............................................................. 3
Absolute Maximum Ratings............................................................ 4
ESD Caution.................................................................................. 4
Typical Performance Characteristics ............................................. 5
Applications....................................................................................... 7
Outline Dimensions ......................................................................... 8
Ordering Guide............................................................................. 8
REVISION HISTORY
1/05—Rev. A to Rev. B
Changed Maximum Operating Voltage...........................Universal
Change to Features List.................................................................... 1
Changes to Specifications Table...................................................... 3
Changes to Ordering Guide ............................................................ 8
9/04—Rev. 0 to Rev. A
Format Updated..................................................................Universal
Added Pb-Free Part............................................................Universal
Changed Temperature Range............................................Universal
Changed Applications Section........................................................ 1
Changes to Ordering Guide ............................................................ 8
10/97—Revision 0: Initial Version
Rev. B | Page 2 of 8
AD8509/AD8511
SPECIFICATIONS
ELECTRICAL CHARACTERISTICS
VS = 5 V, TA = 25°C, unless otherwise noted.
Table 1.
Parameter
INPUT CHARACTERISTICS
Offset Voltage
Input Bias Current
Voltage Gain
OUTPUT CHARACTERISTICS
Output Voltage High
Output Voltage Low
Output Short-Circuit Current
POWER SUPPLY
Load Regulation
Supply Current
Supply Voltage Range
DYNAMIC PERFORMANCE
Slew Rate
Settling Time
LOGIC INPUT CHARACTERISTICS
Input Current Low
Input Current High
Input Voltage Low
Input Voltage High
Symbol
Conditions
VOS
IB
AVO
VOH
VOL
ISC
ISY
ISY
VS
tS
Min
Typ
Max
Unit
20
50
mV
nA
V/V
0.985
ILOAD = +20 mA
ILOAD = −20 mA
4.8
200
120
VIN = 0.5 V − 4.5 V, ISOURCE = 20 mA
VIN = 0.5 V − 4.5 V, ISINK = 20 mA
AD8509, VIN = 2.5 V
AD8511, VIN = 2.5 V
350
7
7
3.3
CL = 15 pF
RL = 250 Ω
IDC = 13 mA (sink/source)
IIL
IIH
VIL
VIH
7
6.2
3
8.5
10
6.5
mV
mV
mA
mA
V
6
V/µs
V/µs
µs
1.0
1.5
0.8
2.0
Rev. B | Page 3 of 8
V
mV
mA
µA
µA
V
V
AD8509/AD8511
ABSOLUTE MAXIMUM RATINGS
Table 2.
Parameter
Supply Voltage
Input Voltage
Storage Temperature Range
RU Package
Operating Temperature Range
Junction Temperature Range
RU Package
Lead Temperature Range
(Soldering, 60 sec)
Rating
7V
GND to VS
−65°C to +150°C
−40°C to +85°C
−65°C to +150°C
300°C
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; the functional operation of the device at these or
any other conditions above those indicated in the operational
sections of this specification is not implied. Exposure to
absolute maximum rating conditions for extended periods may
affect device reliability.
Table 3.
Package Type
θJA1
θJC
Unit
48-lead Pb-free TSSOP (RU)
115
42
°C/W
1
θJA is specified for the worst-case conditions, that is, θJA is specified for
devices soldered in circuit boards for surface-mount packages.
Table 4. MUX Function
A/B Select (Pin 29)
Logic High
Logic Low
Input
INAx
INBx
ESD CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on
the human body and test equipment and can discharge without detection. Although this product features
proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy
electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance
degradation or loss of functionality.
Rev. B | Page 4 of 8
AD8509/AD8511
TYPICAL PERFORMANCE CHARACTERISTICS
10
VS = 5V
TA = 25°C
RL = NO LOAD
CL = 15pF
VS = 5V
RL = NO LOAD
8
7
6
5
3
–35
03237-003
4
–15
5
25
45
65
85
620mV
2.5V
03237-006
SUPPLY CURRENT (mA)
9
105
TEMPERATURE (°C)
Figure 6. Large Signal Transient Response—Rising
Figure 3. Supply Current vs. Temperature
10
VS = 5V
TA = 25°C
RL = NO LOAD
CL = 15pF
VS = 5V
TA = 25°C
RL = NO LOAD
9
SUPPLY CURRENT (mA)
8
7
6
AD8511
5
AD8509
4
3
1
0
0
1
2
3
4
620mV
2.5V
03237-007
03237-004
2
5
COMMON-MODE VOLTAGE (V)
Figure 7. Large Signal Transient Response—Falling
Figure 4. Supply Current vs. Common-Mode Voltage
VS = 5V
TA = 25°C
RL = 250Ω
CL = 15pF
VS = 5V
TA = 25°C
SOURCE
100
SINK
1
0.1
1
10
620mV
2.5V
100
LOAD CURRENT (mA)
Figure 5. Output Voltage to Supply Rail vs. Load Current
Figure 8. Large Signal Transient Response—Rising
Rev. B | Page 5 of 8
03237-008
10
03237-005
∆ OUTPUT VOLTAGE (mV)
1k
AD8509/AD8511
620mV
2.5V
03237-009
VS = 5V
TA = 25°C
RL = 250Ω
CL = 15pF
Figure 9. Large Signal Transient Response—Falling
Rev. B | Page 6 of 8
AD8509/AD8511
APPLICATIONS
The AD8509 and AD8511 are CMOS buffers with A/B inputs,
which are used 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
very large resistor ladders to be used to save supply current. A
guaranteed value of 50 nA is much higher than actual values
and is limited by leakage in the test system.
Buffer outputs are designed to drive resistive loads. They are
also stable with capacitive loads, so no resistors should be used
in series with these outputs to attain the best display performance. Outputs have high slew rates and 6 µs settling times. Each
output can deliver a minimum of 120 mA, assuring fast response
to varying loads.
The AD8509 is a 9-channel buffer and is similar to the LMC6009
in functionality. The AD8511 is an 11-channel buffer similar to
the CL-FP6131. However, the control to select either 9- or
11-channel operation, the EN_11 pin of the CL-FP6131, is not
available on the AD8511. If 9-channel operation is desired, use
the AD8509.
Power supply pins on the AD8509 and AD8511 have multiple
ground and VCC connections. Because of the high peak currents
that these buffers can deliver, it is strongly recommended that
all of the ground and VCC pins be connected, and that the VCC
pins be suitably bypassed.
Rev. B | Page 7 of 8
AD8509/AD8511
OUTLINE DIMENSIONS
12.60
12.50
12.40
25
48
6.20
6.10
6.00
8.10 BSC
1
24
PIN 1
1.20 MAX
0.15
0.05
0.50
BSC
0.27
0.17
SEATING
PLANE
0.20
0.09
8°
0°
0.75
0.60
0.45
COMPLIANT TO JEDEC STANDARDS MO-153ED
Figure 10. 48-Lead Thin Shrink Small Outline Package [TSSOP]
(RU-48)
Dimensions shown in millimeters
ORDERING GUIDE
Model1
AD8509ARU-REEL
AD8509ARUZ-REEL2
AD8511ARU-REEL
AD8511ARUZ-REEL2
1
2
Temperature Range
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
Package Description
48-Lead Thin Shrink Small Outline Package
48-Lead Thin Shrink Small Outline Package
48-Lead Thin Shrink Small Outline Package
48-Lead Thin Shrink Small Outline Package
All models only available in 2,500-piece reels.
Z = Pb-free part.
© 2005 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
C03237–0–1/05(B)
Rev. B | Page 8 of 8
Package Option
RU-48
RU-48
RU-48
RU-48
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