AD8511ARU [ADI]
9- and 11-Channel, Muxed Input LCD Reference Drivers; 9-和11通道，多路复用输入LCD驱动器参考
| 型号： | AD8511ARU |
| 厂家： | 
ADI |
| 描述： | 9- and 11-Channel, Muxed Input LCD Reference Drivers |
| 文件： | 总8页 (文件大小：231K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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
INA1
VO1
INB1
Stable with 1000 pF loads
Pin-compatible with LMC6009
Pin-compatible with CL-FP6131
48-lead, Pb-free, TSSOP package
INA2
VO2
INB2
INA11
VO11
INB11
APPLICATION
A/B
LCD line inversion gamma references
Figure 1.
GENERAL DESCRIPTION
PIN CONFIGURATIONS
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.
NC
NC
48 NC
NC
INA1
INB1
INA2
INB2
INA3
INB3
INA4
INB4
INA5
INB5
INA6
INB6
INA7
INB7
INA8
INB8
INA9
INB9
INA10
INB10
NC
48 NC
1
2
3
4
5
6
7
8
9
1
2
NC
NC
NC
V
VO1
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
47
46
45
44
43
42
41
NC
NC
V
NC
3
INA1
INB1
INA2
INB2
INA3
INB3
4
5
CC
CC
6
GND
VO1
VO2
VO3
VO4
GND
VO2
VO3
7
8
9
40 VO4
INA4 10
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
39
38
37
36
35
34
33
VO5
V
11
12
13
14
15
16
17
18
19
20
21
22
23
24
V
INB4
INA5
INB5
INA6
INB6
INA7
INB7
INA8
INB8
INA9
INB9
NC
CC
CC
AD8509
AD8511
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.
TOP VIEW
TOP VIEW
GND
VO5
VO6
VO7
VO8
VO9
GND
VO6
VO7
VO8
VO9
(Not to Scale)
(Not to Scale)
32 VO10
GND
31 GND
31
30
29
28
27
26
V
V
30
29
28
27
26
25
CC
CC
A/B
NC
A/B
NC
NC
NC
NC
NC
NC
INA11
INB11
VO11
25 NC
NC = NO CONNECT
NC
NC = NO CONNECT
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
Fax: 781.326.8703
www.analog.com
© 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
Symbol
Conditions
Min
Typ
Max
Unit
INPUT CHARACTERISTICS
Offset Voltage
Input Bias Current
Voltage Gain
VOS
IB
AVO
20
50
mV
nA
V/V
0.985
4.8
OUTPUT CHARACTERISTICS
Output Voltage High
Output Voltage Low
Output Short-Circuit Current
POWER SUPPLY
VOH
VOL
ISC
ILOAD = +20 mA
ILOAD = −20 mA
V
mV
mA
200
120
350
Load Regulation
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
7
7
mV
mV
mA
mA
V
Supply Current
ISY
ISY
VS
8.5
10
6.5
AD8511, VIN = 2.5 V
Supply Voltage Range
DYNAMIC PERFORMANCE
Slew Rate
3.3
CL = 15 pF
RL = 250 Ω
IDC = 13 mA (sink/source)
7
6.2
3
V/µs
V/µs
µs
Settling Time
tS
6
LOGIC INPUT CHARACTERISTICS
Input Current Low
Input Current High
Input Voltage Low
IIL
IIH
VIL
VIH
1.0
1.5
0.8
µA
µA
V
Input Voltage High
2.0
V
Rev. B | Page 3 of 8
AD8509/AD8511
ABSOLUTE MAXIMUM RATINGS
Table 2.
Parameter
Supply Voltage
Input Voltage
Storage Temperature Range
RU Package
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.
Rating
7 V
GND to VS
−65°C to +150°C
−40°C to +85°C
Operating Temperature Range
Junction Temperature Range
RU Package
Table 3.
Package Type
−65°C to +150°C
300°C
1
Unit
θJA
θJC
Lead Temperature Range
(Soldering, 60 sec)
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
Input
INAx
INBx
Logic Low
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
V
T
R
= 5V
= 25°C
= NO LOAD
= 15pF
V
= 5V
S
S
R
= NO LOAD
A
L
9
8
7
6
5
4
3
L
L
C
620mV
2.5V
–35
–15
5
25
45
65
85
105
TEMPERATURE (°C)
Figure 6. Large Signal Transient Response—Rising
Figure 3. Supply Current vs. Temperature
10
9
8
7
6
5
4
3
2
1
0
V
T
R
C
= 5V
= 25°C
= NO LOAD
= 15pF
S
A
V
T
R
= 5V
= 25°C
= NO LOAD
S
A
L
L
L
AD8511
AD8509
620mV
2.5V
0
1
2
3
4
5
COMMON-MODE VOLTAGE (V)
Figure 7. Large Signal Transient Response—Falling
Figure 4. Supply Current vs. Common-Mode Voltage
1k
100
10
V
T
R
C
= 5V
V
T
= 5V
= 25°C
S
A
S
= 25°C
= 250Ω
= 15pF
A
L
L
SOURCE
SINK
620mV
2.5V
1
0.1
1
10
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
AD8509/AD8511
V
T
R
C
= 5V
S
A
= 25°C
= 250Ω
= 15pF
L
L
620mV
2.5V
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.
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.
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 perform-
ance. 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.
Rev. B | Page 7 of 8
AD8509/AD8511
OUTLINE DIMENSIONS
12.60
12.50
12.40
48
25
6.20
6.10
6.00
8.10 BSC
1
24
PIN 1
1.20 MAX
0.15
0.05
0.75
0.60
0.45
8°
0°
0.50
BSC
0.27
0.17
SEATING
PLANE
0.20
0.09
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
Temperature Range
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
Package Description
Package Option
RU-48
RU-48
RU-48
RU-48
AD8509ARU-REEL
AD8509ARUZ-REEL2
AD8511ARU-REEL
AD8511ARUZ-REEL2
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
1 All models only available in 2,500-piece reels.
2 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
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