AD8184 Datasheet, PDF (1/12 Pages) Analog Devices – 700 MHz, 5 mA 4-to-1 Video Multiplexer

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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 (R_L > 2 k⍀)
Gain Flatness of 0.1 dB of 75 MHz
0.01% Differential Gain Error, R_L = 10 k⍀
0.01؇ Differential Phase Error, R_L = 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 –V_S
AD8184
NC = NO CONNECT
Table I. Truth Table
ENABLE
A1
A0
0
0
0
0
0
1
0
1
0
0
1
1
1
X
X
OUTPUT
IN0
IN1
IN2
IN3
High Z
5
4
V_IN = 50mVrms
R_L = 5kΩ
3
2
1
0
–1
–2
–3
–4
–5
1M
10M
100M
1G
FREQUENCY – Hz
Figure 1. Small Signal Frequency Response
REV. 0
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© Analog Devices, Inc., 1997