750 MHz, 3.8 mA
a
10 ns Switching Multiplexers
AD8180/AD8182*
FEATURES
FUNCTIONAL BLOCK DIAGRAM
Fully Buffered Inputs and Outputs
Fast Channel Switching: 10 ns
High Speed
> 750 MHz Bandwidth (–3 dB)
750 V/s Slew Rate
Fast Settling Time of 14 ns to 0.1%
Low Power: 3.8 mA (AD8180), 6.8 mA (AD8182)
Excellent Video Specifications (RL ≥ 1 k⍀)
Gain Flatness of 0.1 dB Beyond 100 MHz
0.02% Differential Gain Error
0.02؇ Differential Phase Error
Low Glitch: < 35 mV
Low All-Hostile Crosstalk of –80 dB @ 5 MHz
High “OFF” Isolation of –90 dB @ 5 MHz
Low Cost
IN0
GND
IN1
1
2
3
4
8
7
6
5
SELECT
+1
DECODER
ENABLE
OUT
+1
+V
S
–V
S
AD8180
IN0 A
GND
1
2
3
4
5
6
14 SELECT A
13
+1
DECODER
ENABLE A
IN1 A
12 OUT A
+1
+V
S
–V
AD8182
11
S
IN1 B
GND
10 OUT B
+1
9
8
ENABLE B
DECODER
Fast Output Disable Feature for Connecting Multiple Devices
IN0 B
7
+1
SELECT B
APPLICATIONS
Pixel Switching for “Picture-In-Picture”
Switching in LCD and Plasma Displays
Video Switchers and Routers
Table I. Truth Table
PRODUCT DESCRIPTION
SELECT
ENABLE
OUTPUT
The AD8180 (single) and AD8182 (dual) are high speed 2-to-1
multiplexers. They offer –3 dB signal bandwidth greater than
750 MHz along with slew rate of 750 V/µs. With better than
80 dB of crosstalk and isolation, they are useful in many high
speed applications. The differential gain and differential phase
error of 0.02% and 0.02°, along with 0.1 dB flatness beyond
100 MHz make the AD8180 and AD8182 ideal for professional
video multiplexing. They offer 10 ns switching time making
them an excellent choice for pixel switching (picture-in-picture)
while consuming less than 3.8 mA (per 2:1 mux) on ±5 V sup-
ply voltages.
0
1
0
1
0
0
1
1
IN0
IN1
High Z
High Z
Both devices offer a high speed disable feature allowing the
output to be configured into a high impedance state. This al-
lows multiple outputs to be connected together for cascading
stages while the “OFF” channels do not load the output bus.
They operate on voltage supplies of ±5 V and are offered in 8-
and 14-lead plastic DIP and SOIC packages.
500mV
/DIV
5ns/DIV
Figure 1. AD8180/AD8182 Switching Characteristics
*Protected under U.S. Patent Number 5,955,908.
REV. B
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