19-2987; Rev 0; 9/03
225MHz, Triple, 2-Channel Video
Multiplexer-Amplifier
General Description
The MAX4027 is a triple, wideband, 2-channel, nonin-
verting gain-of-two video amplifier with input multiplex-
ing, capable of driving up to two back-terminated video
loads. The MAX4027 features current-mode feedback
amplifiers configured for a gain of two (+6dB) with a
-3dB large-signal bandwidth of 200MHz. The device
has low (0.012%/0.014掳) differential gain and phase
errors, and operates from 卤5V supplies.
The MAX4027 is ideal for use in broadcast and graph-
ics video systems because of the low 2pF input capaci-
tance, channel-to-channel switching time of only 15ns,
and wide 62MHz, large-signal 0.1dB bandwidth. High-
impedance output disabling allows the MAX4027 to be
incorporated into large switching arrays with minimal
interaction with the source. Specified over the -40掳C to
+85掳C extended temperature range, the MAX4027 is
available in 14-pin SO and TSSOP packages.
Features
o
Excellent Video Specifications:
75MHz Small-Signal 0.1dB Gain Flatness
62MHz Large-Signal 0.1dB Gain Flatness
0.012%/0.014掳 Differential Gain/Phase Error
o
VGA to UXGA Resolution
o
High Speed:
200MHz 2V
P-P
-3dB Bandwidth
1100V/碌s Slew Rate
15ns Settling Time to 0.1%
o
Internal Gain of 2V/V Compensates for Output
Back Termination
o
Fast Switching:
15ns Channel-Switching Time
260mV
P-P
Switching Transient
o
Drives Two Back-Terminated Video Loads
o
High-Impedance Output Disable
MAX4027
Applications
Video Source Selection (Multiplexing)
Picture in Picture (PIP) Insertion
Crosspoint Expansion
Coaxial Cable Drivers
Supports VGA to UXGA (1600 x 1200) Resolution
Enterprise Class (Blade) Servers
Keyboard-Video-Mouse (KVM)
Ordering Information
PART
MAX4027ESD
MAX4027EUD
TEMP RANGE
-40掳C to +85掳C
-40掳C to +85掳C
PIN-PACKAGE
14 SO
14 TSSOP
Typical Operating Circuit
TOP VIEW
MAX4027
VIDEO R
SOURCE G
1
B
x2
IN1A
IN2A
IN3A
IN1B
IN2B
IN3B
OUT1
R
IN1A 1
IN2A
TRIPLE
2:1
MUX
IN3A
x2
OUT2
G
2
3
Pin Configuration
14 A/B
13 OUT1
12 V
CC
GND 4
IN1B 5
MAX4027
11 OUT2
10 V
EE
9
8
OUT3
EN
VIDEO R
SOURCE G
2
B
x2
OUT3
B
IN2B 6
IN3B 7
SO/TSSOP
A/B
EN
________________________________________________________________
Maxim Integrated Products
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For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim鈥檚 website at www.maxim-ic.com.
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