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PDF D8189 Data sheet ( Hoja de datos )
| Número de pieza | D8189 | |
| Descripción | AD8189 | |
| Fabricantes | Analog Devices | |
| Logotipo |  |
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FEATURES
Fully buffered inputs and outputs
Fast channel-to-channel switching: 4 ns
Single-supply operation (5 V)
High speed
350 MHz bandwidth (−3 dB) @ 200 mV p-p
300 MHz bandwidth (−3 dB) @ 2 V p-p
Slew rate: 1000 V/μs
Fast settling time: 7 ns to 0.1%
Low current: 19 mA/20 mA
Excellent video specifications: load resistor (RL) = 150 Ω
Differential gain error: 0.05%
Differential phase error: 0.05°
Low glitch
All hostile crosstalk
−84 dB @ 5 MHz
−52 dB @ 100 MHz
High off isolation: −95 dB @ 5 MHz
Low cost
Fast, high impedance disable feature for connecting
multiple outputs
Logic-shifted outputs
APPLICATIONS
Switching RGB in LCD and plasma displays
RGB video switchers and routers
GENERAL DESCRIPTION
The AD8188 (G = 1) and AD8189 (G = 2) are high speed,
single-supply, triple 2-to-1 multiplexers. They offer −3 dB small
signal bandwidth of 350 MHz and −3 dB large signal bandwidth
of 300 MHz, along with a slew rate in excess of 1000 V/μs. With
−84 dB of all hostile crosstalk and −95 dB off isolation, the parts
are well suited for many high speed applications. The
differential gain and differential phase error of 0.05% and 0.05°
respectively, along with 0.1 dB flatness to 70 MHz, make the
AD8188 and AD8189 ideal for professional and component
video multiplexing. The parts offer 4 ns switching time, making
them an excellent choice for switching video signals, while
consuming less than 20 mA on a single 5 V supply (100 mW).
Both devices have a high speed disable feature that sets the
outputs into a high impedance state. This allows the building of
larger input arrays while minimizing off-channel output
loading. The devices are offered in a 24-lead TSSOP.
350 MHz Single-Supply (5 V)
Triple 2:1 Multiplexers
AD8188/AD8189
FUNCTIONAL BLOCK DIAGRAM
IN0A 1
DGND 2
IN1A 3
VREF 4
IN2A 5
VCC
VEE
IN2B
6
7
8
VEE 9
IN1B 10
VEE 11
IN0B 12
LOGIC
24 VCC
23 OE
SELECT
ENABLE
0
22 SEL A/B
21 VCC
20 OUT0
19 VEE
1 18 OUT1
17 VCC
2 16 OUT2
AD8188/AD8189
15 VEE
14 DVCC
13 VCC
Figure 1.
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
–0.5
–1.0
0
6.0
5.5
5.0
INPUT
4.5
4.0
3.5
3.0
OUTPUT
2.5
2.0
1.5
1.0
5 10 15 20 25
TIME (ns)
Figure 2. AD8189 Video Amplitude Pulse Response,
VOUT = 1.4 V p-p, RL = 150 Ω
Rev. 0
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.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
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
©2006 Analog Devices, Inc. All rights reserved.
1 page  
ABSOLUTE MAXIMUM RATINGS
Table 2.
Parameter1
Supply Voltage
DVCC to DGND
DVCC to VEE
VCC to DGND
IN0A, IN0B, IN1A, IN1B, IN2A, IN2B, VREF
SEL A/B, OE
Output Short-Circuit Operation
Operating Temperature Range
Storage Temperature Range
Lead Temperature Range (Soldering, 10 sec)
Rating
5.5 V
5.5 V
8.0 V
8.0 V
VEE ≤ VIN ≤ VCC
DGND ≤ VIN ≤ VCC
Indefinite
–40°C to +85°C
–65°C to +150°C
300°C
1 Specification is for device in free air (TA = 25°C).
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.
THERMAL RESISTANCE
θJA is specified for the worst-case conditions, that is, a device
soldered in a circuit board for surface-mount packages.
Table 3. Thermal Resistance
Package Type
θJA2
24-Lead TSSOP1
85
θJC
20
Unit
°C/W
1 Maximum internal power dissipation (PD) should be derated for ambient
temperature (TA) such that PD < (150°C TA)/θJA.
2 θJA is on a 4-layer board (2s 2p).
AD8188/AD8189
MAXIMUM POWER DISSIPATION
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. Exceeding a
junction temperature of 175°C for an extended period can
result in device failure.
While the AD8188/AD8189 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.
2.5
2.0
1.5
1.0
0.5
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
ESD CAUTION
Rev. 0 | Page 5 of 24
5 Page 
2.8 3.3
2.7
INPUT
2.6
2.5
2.4
2.3 2.8
2.2
OUTPUT
2.1
2.0
1.9
1.8
0
2.3
5 10 15 20 25
TIME (ns)
Figure 29. AD8188 Small Signal Pulse Response,
VOUT = 200 mV p-p, RL = 1 kΩ
3.0 5.0
INPUT
2.5 4.5
2.0 4.0
1.5 3.5
1.0 3.0
OUTPUT
0.5 2.5
0 2.0
–0.5 1.5
–1.0
0
1.0
5 10 15 20 25
TIME (ns)
Figure 30. AD8188 Video Amplitude Pulse Response,
VOUT = 700 mV p-p, RL = 1 kΩ
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
0
INPUT
OUTPUT
5 10 15 20
TIME (ns)
Figure 31. AD8188 Large Signal Pulse Response,
VOUT = 2 V p-p, RL = 1 kΩ
7.0
6.5
6.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
25
AD8188/AD8189
2.8 3.2
2.7 3.1
2.6 INPUT 3.0
2.5 2.9
2.4 2.8
2.3 2.7
OUTPUT
2.2 2.6
2.1 2.5
2.0 2.4
1.9 2.3
1.8
0
2.2
5 10 15 20 25
TIME (ns)
Figure 32. AD8189 Small Signal Pulse Response,
VOUT = 200 mV p-p, RL = 150 kΩ
4.0 6.0
3.5 5.5
3.0 5.0
2.5 INPUT 4.5
2.0 4.0
1.5 OUTPUT 3.5
1.0 3.0
0.5 2.5
0 2.0
–0.5
1.5
–1.0
0
1.0
5 10 15 20 25
TIME (ns)
Figure 33. AD8189 Video Amplitude Pulse Response,
VOUT = 1.4 V p-p, RL = 150 kΩ
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
0
INPUT
OUTPUT
5 10 15 20
TIME (ns)
Figure 34. AD8189 Large Signal Pulse Response,
VOUT = 2 V p-p, RL = 150 kΩ
6.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
25
Rev. 0 | Page 11 of 24
11 Page | ||
| Páginas | Total 24 Páginas | |
| PDF Descargar | [ Datasheet D8189.PDF ] | |
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