AD8189_15 Datasheet, PDF (1/24 Pages) Analog Devices – 350 MHz Single-Supply Triple 2:1 Multiplexers

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
D_GND 2
IN1A 3
V_REF 4
IN2A 5
V_CC 6
V_EE 7
IN2B 8
V_EE 9
IN1B 10
V_EE 11
IN0B 12
LOGIC
24 V_CC
23 OE
SELECT
ENABLE
0
22 SEL A/B
21 V_CC
20 OUT0
19 V_EE
1
18 OUT1
17 V_CC
2
16 OUT2
AD8188/AD8189
15 V_EE
14 DV_CC
13 V_CC
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
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