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PDF AD8184 Data sheet ( Hoja de datos )
| Número de pieza | AD8184 | |
| Descripción | 700 MHz/ 5 mA 4-to-1 Video Multiplexer | |
| Fabricantes | Analog Devices | |
| Logotipo |  |
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FEATURES
Single and Dual 2-to-1 Also Available (AD8180 and AD8182)
Fully Buffered Inputs and Outputs
Fast Channel Switching: 10 ns
High Speed
> 700 MHz Bandwidth (–3 dB)
> 750 V/s Slew Rate
Fast Settling Time of 15 ns to 0.1%
Excellent Video Specifications (RL > 2 k⍀)
Gain Flatness of 0.1 dB of 75 MHz
0.01% Differential Gain Error, RL = 10 k⍀
0.01؇ Differential Phase Error, RL = 10 k⍀
Low Power: 4.4 mA
Low Glitch: < 25 mV
Low All-Hostile Crosstalk of –95 dB @ 5 MHz
High “OFF” Isolation of –115 dB @ 5 MHz
Low Cost
Fast Output Disable Feature for Connecting Multiple Devices
APPLICATIONS
Pin Compatible with HA4314* and GX4314*
Video Switchers and Routers
Pixel Switching for “Picture-In-Picture”
Switching in LCD and Plasma Displays
PRODUCT DESCRIPTION
The AD8184 is a high speed 4-to-1 multiplexer. It offers –3 dB
signal bandwidth of 700 MHz along with a slew rate of 750 V/µs.
With 95 dB of crosstalk and 115 dB isolation, it is useful in
many high speed applications. The differential gain and differ-
ential phase error of 0.01% and 0.01°, along with 0.1 dB flatness
of 75 MHz, make AD8184 ideal for professional video multi-
plexing. It offers 10 ns switching time, making it an excellent
choice for pixel switching (picture-in-picture) while consuming
less than 4.5 mA on ± 5 V supply voltage.
The AD8184 offers a high speed disable feature allowing the
output to be put into a high impedance state. This allows mul-
tiple outputs to be connected together for cascading stages while
the “OFF” channels do not load the output bus. It operates on
voltage supplies of ±5 V and is offered in 14-lead PDIP and
SOIC packages.
*All trademarks are the property of their respective holders.
700 MHz, 5 mA
4-to-1 Video Multiplexer
AD8184
FUNCTIONAL BLOCK DIAGRAM
IN0 1
+1
14 +VS
GND 2
13 A0
IN1 3
+1
12 A1
GND 4
DECODER
11 ENABLE
IN2 5
+1
10 OUT
GND 6
9 NC
IN3 7
+1 8 –VS
AD8184
NC = NO CONNECT
Table I. Truth Table
ENABLE A1 A0
0 00
0 01
0 10
0 11
1 XX
OUTPUT
IN0
IN1
IN2
IN3
High Z
5
4
VIN = 50mVrms
RL = 5kΩ
3
2
1
0
–1
–2
–3
–4
–5
1M
10M 100M
FREQUENCY – Hz
1G
Figure 1. Small Signal Frequency Response
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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700 World Wide Web Site: http://www.analog.com
Fax: 617/326-8703
© Analog Devices, Inc., 1997
1 page  
50mV/DIV
OUTPUT @ 50mV
OUTPUT @ 100mV
INPUT
5ns/DIV
Figure 9. Small Signal Transient Response
2V/DIV
OUTPUT = +– 2V
OUTPUT = +– 1V
INPUT
10ns/DIV
Figure 10. Large Signal Transient Response
0.05
0.04
0.03
0.02
RL = 2kΩ
NTSC
0.01
0.00
–0.01
–0.02
–0.03
–0.04
–0.05
1 2 3 4 5 6 7 8 9 10 11
0.05
0.04
0.03
0.02
0.01
0.00
–0.01
–0.02
–0.03
–0.04
–0.05
1 2 3 4 5 6 7 8 9 10 11
Figure 11. Differential Gain and Phase Error
AD8184
–10
–20
–30
–40
–50
–60
50Ω 1
3
50Ω
VIN 50Ω
5
7
10 OUTPUT
2kΩ
AD8184
VIN = 0.707Vrms
RL = 2kΩ
–70
–80
–90
–100
–110
100k
1M
10M
100M
FREQUENCY – Hz
1G
Figure 12. All-Hostile Crosstalk vs. Frequency
–30
VIN = 0.446 Vrms
–40 RL = 30Ω
–50
–60
–70
–80
–90
1 = LOGIC 1
3
50Ω
VIN 50Ω
5
7
10 OUTPUT
30Ω
AD8184
–100
–110
–120
–130
100k
1M 10M
FREQUENCY – Hz
100M
1G
Figure 13. “OFF” Isolation vs. Frequency
100
10
1
10 100 1k 10k 100k 1M 10M 30M
FREQUENCY – Hz
Figure 14. Voltage Noise vs. Frequency
REV. 0
–5–
5 Page 
AD8184
Figure 26. Component Side Silkscreen
Figure 28. Solder Side Silkscreen
Figure 27. Board Layout (Component Side)
Figure 29. Board Layout (Solder Side)
REV. 0
–11–
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet AD8184.PDF ] | |
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