MAX4027 Maxim, MAX4027 Datasheet

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MAX4027

Manufacturer Part Number
MAX4027
Description
The MAX4027 is a triple, wideband, 2-channel, noninverting gain-of-two video amplifier with input multiplexing, capable of driving up to two back-terminated video loads
Manufacturer
Maxim
Datasheet

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Part Number
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Part Number:
MAX4027ESD
Manufacturer:
MAXIM/美信
Quantity:
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MAX4027ESD+
Manufacturer:
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Quantity:
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19-2987; Rev 0; 9/03
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°) differential gain and phase
errors, and operates from ±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°C to
+85°C extended temperature range, the MAX4027 is
available in 14-pin SO and TSSOP packages.
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
SOURCE
SOURCE
VIDEO
VIDEO
1
2
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)
R
B
R
G
B
G
Typical Operating Circuit
________________________________________________________________ Maxim Integrated Products
IN1A
IN2A
IN3A
IN1B
IN2B
IN3B
A/B
General Description
MAX4027
TRIPLE
MUX
2:1
Applications
EN
225MHz, Triple, 2-Channel Video
x 2
x 2
x 2
OUT1
OUT2
OUT3
R
G
B
o Excellent Video Specifications:
o VGA to UXGA Resolution
o High Speed:
o Internal Gain of 2V/V Compensates for Output
o Fast Switching:
o Drives Two Back-Terminated Video Loads
o High-Impedance Output Disable
Back Termination
MAX4027ESD
MAX4027EUD
TOP VIEW
Multiplexer-Amplifier
75MHz Small-Signal 0.1dB Gain Flatness
62MHz Large-Signal 0.1dB Gain Flatness
0.012%/0.014° Differential Gain/Phase Error
15ns Channel-Switching Time
260mV
200MHz 2V
1100V/µs Slew Rate
15ns Settling Time to 0.1%
PART
P-P
IN1A
IN2A
IN3A
IN1B
IN2B
IN3B
GND
Switching Transient
P-P
1
4
5
6
7
2
3
-3dB Bandwidth
Ordering Information
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
SO/TSSOP
MAX4027
Pin Configuration
14
13
12
11
10
9
8
A/B
OUT1
V
OUT2
V
OUT3
EN
CC
EE
PIN-PACKAGE
14 SO
14 TSSOP
Features
1

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MAX4027 Summary of contents

Page 1

... The device has low (0.012%/0.014°) differential gain and phase errors, and operates from ±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 ...

Page 2

... Note 1: Continuous power-dissipation rating must also be observed. Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability ...

Page 3

AC ELECTRICAL CHARACTERISTICS ( -5V 0V 75Ω to GND IN_ _ IN PARAMETER SYMBOL AMPLIFIER CHARACTERISTICS Small-Signal -3dB Bandwidth Small-Signal Bandwidth for BW ±0.1dB Gain Flatness Large-Signal -3dB Bandwidth ...

Page 4

Triple, 2-Channel Video Multiplexer-Amplifier (V = +5V -5V 150Ω to GND SMALL-SIGNAL FREQUENCY RESPONSE 20mV IN_ _ P +2V ...

Page 5

... TOTAL HARMONIC DISTORTION vs. FREQUENCY - OUT_ P-P -30 -40 -50 -60 -70 -80 - 10M FREQUENCY (Hz) LARGE-SIGNAL PULSE RESPONSE (C = 20pF) LOAD MAX4027 toc14 V IN_ _ 500mV/div 0V V OUT_ 1V/div 0V 10ns/div A/B SWITCHING TRANSIENT MAX4027 toc17 A/B 2.5V/div 0V V OUT_ 100mV/div 0V 20ns/div 100M MAX4027 toc15 0V 0V MAX4027 toc18 ...

Page 6

Triple, 2-Channel Video Multiplexer-Amplifier (V = +5V -5V 150Ω to GND SUPPLY CURRENT vs. TEMPERATURE -50 - ...

Page 7

... This VCL A Table 2. Output Control Logic Drive EN high to place the MAX4027 in disable mode. Placing the device in disable mode reduces the quies- cent current to 17mA (V the amplifier outputs into a high-impedance state, typi- Pin Description Truth Tables AMPLIFIER INPUT FUNCTION IN_A ...

Page 8

... The MAX4027 is enabled when EN is unconnected. Video Line Driver The MAX4027 is well suited to drive short coaxial trans- mission lines when the cable is terminated at both ends (Figure 1) where the fixed gain of +2 compensates for the loss in the back termination. Cable frequency response may cause variations in the flatness of the signal ...

Page 9

... Figure 2. Switching Timing Diagram _______________________________________________________________________________________ 225MHz, Triple, 2-Channel Video Multiplexer-Amplifier pins. IN1A IN1B IN2A IN2B t SW CHANNEL A IN3A IN3B t PDE TRANSISTOR COUNT: 870 PROCESS: Bipolar Functional Diagram V A MUX1 OUT1 TO A MUX2 OUT2 TO A MUX3 OUT3 MAX4027 GND V EE Chip Information 9 ...

Page 10

... Triple, 2-Channel Video Multiplexer-Amplifier (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages TOP VIEW FRONT VIEW 10 ______________________________________________________________________________________ SIDE VIEW Package Information ...

Page 11

... For the latest package outline information go to www.maxim-ic.com/packages.) Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. ...

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