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PDF AD8111 Data sheet ( Hoja de datos )
| Número de pieza | AD8111 | |
| Descripción | 16 x 8 Buffered Video Crosspoint Switches | |
| Fabricantes | Analog Devices | |
| Logotipo |  |
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a
260 MHz, 16 ؋ 8 Buffered
Video Crosspoint Switches
AD8110/AD8111
FEATURES
16 ؋ 8 High-Speed Nonblocking Switch Arrays
AD8110: G = +1
AD8111: G = +2
Serial or Parallel Switch Array Control
Serial Data Out Allows “Daisy Chaining” of Multiple
Crosspoints to Create Larger Switch Arrays
Pin-Compatible with AD8108/AD8109 8 ؋ 8 Switch
Arrays
For a 16 ؋ 16 Array See AD8116
Complete Solution
Buffered Inputs
Eight Output Amplifiers, AD8110 (G = +1),
AD8111 (G = +2)
Drives 150 V Loads
Excellent Video Performance
60 MHz 0.1 dB Gain Flatness
0.02% Differential Gain Error (RL = 150 V)
0.028 Differential Phase Error (RL = 150 V)
Excellent AC Performance
260 MHz –3 dB Bandwidth
500 V/ms Slew Rate
Low Power of 50 mA
Low All Hostile Crosstalk of –78 dB @ 5 MHz
Output Disable Allows Direct Connection of Multiple
Device Outputs
Reset Pin Allows Disabling of All Outputs (Connected
Through a Capacitor to Ground Provides “Power-
On” Reset Capability)
Excellent ESD Rating: Exceeds 4000 V Human Body
Model
80-Lead LQFP Package (12 mm ؋ 12 mm)
APPLICATIONS
Routing of High-Speed Signals Including:
Composite Video (NTSC, PAL, S, SECAM)
Component Video (YUV, RGB)
Compressed Video (MPEG, Wavelet)
3-Level Digital Video (HDB3)
PRODUCT DESCRIPTION
The AD8110 and AD8111 are high-speed 16 × 8 video cross-
point switch matrices. They offer a –3 dB signal bandwidth
greater than 260 MHz, and channel switch times of less than
25 ns with 1% settling. With –78 dB of crosstalk and –97 dB
isolation (@ 5 MHz), the AD8110/AD8111 are useful in many
high-speed applications. The differential gain and differential
FUNCTIONAL BLOCK DIAGRAM
SER/PAR D0 D1 D2 D3 D4
CLK
DATA IN
UPDATE
CE
RESET
A0
A1
A2
40-BIT SHIFT REGISTER
WITH 5-BIT
PARALLEL LOADING
40
PARALLEL LATCH
40
DECODE
8 ؋ 5:16 DECODERS
SET INDIVIDUAL
OR RESET ALL
OUTPUTS
TO "OFF"
8
DATA
OUT
AD8110/AD8111
OUTPUT
128 BUFFER
G = +1,
G = +2
16 INPUTS
SWITCH
MATRIX
8 OUTPUTS
phase of better than 0.02% and 0.02° respectively, along with
0.1 dB flatness out to 60 MHz, make the AD8110/AD8111
ideal for video signal switching.
The AD8110 and AD8111 include eight independent output
buffers that can be placed into a high impedance state for paral-
leling crosspoint outputs so that off channels do not load the
output bus. The AD8110 has a gain of +1, while the AD8111
offers a gain of +2. They operate on voltage supplies of ±5 V
while consuming only 50 mA of idle current. The channel
switching is performed via a serial digital control (which can
accommodate “daisy chaining” of several devices) or via a parallel
control, allowing updating of an individual output without repro-
gramming the entire array.
The AD8110/AD8111 is packaged in an 80-lead LQFP package
and is available over the extended industrial temperature range
of –40°C to +85°C.
Rev. B
Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevices for itsuse,nor foranyinfringementsofpatentsor 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.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
©2016 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com
1 page  
ABSOLUTE MAXIMUM RATINGS1
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.0 V
Internal Power Dissipation2
AD8110/AD8111 80-Lead Plastic LQFP (ST) . . . . . 2.6 W
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± VS
Output Short Circuit Duration
. . . . . . . . . . . . . . . . . . . . . Observe Power Derating Curves
Storage Temperature Range . . . . . . . . . . . . –65°C to +125°C
Lead Temperature Range (Soldering 10 sec) . . . . . . . . 300°C
NOTES
1Stresses above those listed under Absolute Maximum Ratings may cause perma-
nent 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.
2Specification is for device in free air (TA = 25°C):
80-lead plastic LQFP (ST): θJA = 48°C/W.
MAXIMUM POWER DISSIPATION
The maximum power that can be safely dissipated by the
AD8110/AD8111 is limited by the associated rise in junction
temperature. The maximum safe junction temperature for plastic
encapsulated devices is determined by the glass transition
temperature of the plastic, approximately 150°C. Temporarily
exceeding this limit may cause a shift in parametric performance
due to a change in the stresses exerted on the die by the package.
AD8110/AD8111
Exceeding a junction temperature of 175°C for an extended
period can result in device failure.
While the AD8110/AD8111 is internally short circuit protected,
this may not be sufficient to guarantee that the maximum junction
temperature (150°C) is not exceeded under all conditions. To
ensure proper operation, it is necessary to observe the maximum
power derating curves shown in Figure 3.
5.0
TJ = 150؇C
4.0
3.0
2.0
1.0
0
–50 –40 –30 –20 –10 0 10 20 30 40 50 60 70 80 90
AMBIENT TEMPERATURE – ؇C
Figure 3. Maximum Power Dissipation vs. Temperature
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
the AD8110/AD8111 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.
WARNING!
ESD SENSITIVE DEVICE
3&7#
–5–
5 Page 
؊30
؊40
RL = 150⍀
؊50
؊60
؊70
؊80
؊90
10k
100k
1M
FREQUENCY ؊ Hz
TPC 13. AD8110 PSRR vs. Frequency
10M
100
56.3
31.6
17.
8
10
5.63
3.16
10 100 1k 10k 100k 1M 10M
FREQUENCY ؊ Hz
TPC 14. AD8110 Voltage Noise vs. Frequency
1M
100k
10k
1k
100
0.1
1 10
FREQUENCY ؊ MHz
100
500
TPC 15. AD8110 Output Impedance, Disabled
AD8110/AD8111
5 SWITCHING BETWEEN
TWO INPUTS
4
3
UPDATE INPUT
2
1
0
10
0
TYPICAL VIDEO OUT (RTO)
–10
50ns/DIV
TPC 16. AD8110 Switching Transient (Glitch)
–50
–60
–70
–80
–90
–100
–110
–120
–130
VIN = 2V p-p
RL = 150⍀
100k
1M 10M
FREQUENCY – Hz
100M
500M
TPC 17. AD8110 Off Isolation, Input-Output
10,000
1000
100
10
1
0.1
100k
1M 10M
FREQUENCY – Hz
100M
500M
TPC 18. AD8110 Output Impedance, Enabled
3&7#
–11–
11 Page | ||
| Páginas | Total 21 Páginas | |
| PDF Descargar | [ Datasheet AD8111.PDF ] | |
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