19-0219; Rev 2; 6/94
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Two-Channel, Triple/Quad
RGB Video Switches and Buffers
The MAX463–MAX470 series of two-channel,
triple/quad buffered video switches and video buffers
combines high-accuracy, unity-gain-stable amplifiers
with high-performance video switches. Fast switching
time and low differential gain and phase error make this
series of switches and buffers ideal for all video applications. The devices are all specified for ±5V supply
operation with inputs and outputs as high as ±2.5V
when driving 150Ω loads (75Ω back-terminated cable).
Input capacitance is typically only 5pF, and channel-tochannel crosstalk is better than 60dB, accomplished by
surrounding all inputs with AC ground pins. The onboard amplifiers feature a 200V/µs slew rate (300V/µs
for AV = 2V/V amplifiers), and a bandwidth of 100MHz
(90MHz for AV = 2V/V buffers). Channel selection is
controlled by a single TTL-compatible input pin or by a
microprocessor interface, and channel switch time is
only 20ns.
For design flexibility, devices are offered with bufferamplifier gains of 1V/V or 2V/V for 75Ω back-terminated
applications. Output amplifiers have a guaranteed output swing of ±2V into 75Ω.
Devices offered in this series are as follows:
____________________________Features
♦
♦
♦
♦
♦
♦
♦
♦
♦
♦
100MHz Unity-Gain Bandwidth
90MHz Bandwidth with 2V/V Gain
0.01%/0.03° Differential Gain/Phase Error
Drives 50Ω and 75Ω Back-Terminated Cable Directly
Wide Output Swing:
±2V into 75Ω
±2.5V into 150Ω
300V/µs Slew Rate (2V/V gain)
20ns Channel Switching Time
Logic Disable Mode:
High-Z Outputs
Reduced Power Consumption
Outputs May Be Paralleled for Larger Networks
5pF Input Capacitance (channel on or off)
______________Ordering Information
PART
TEMP. RANGE
PIN-PACKAGE
MAX463CNG
0°C to +70°C
24 Narrow Plastic DIP
MAX463CWG
MAX463C/D
MAX463ENG
MAX463EWG
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
24 Wide SO
Dice*
24 Narrow Plastic DIP
24 Wide SO
PART
DESCRIPTION
VOLTAGE GAIN
(V/V)
MAX463
Triple RGB Switch & Buffer
1
MAX464
Quad RGB Switch & Buffer
1
MAX465
Triple RGB Switch & Buffer
2
MAX466
Quad RGB Switch & Buffer
2
MAX467
Triple Video Buffer
1
MAX468
Quad Video Buffer
1
IN0A
1
MAX469
Triple Video Buffer
2
GND
2
MAX470
Quad Video Buffer
2
IN1A
3
GND
4
IN2A
5
V-
6
TOP VIEW
24 GND
MAX463
MAX465
23 LE
22 EN
21 A0
SWITCH
Broadcast-Quality Color-Signal Multiplexing
_________________Pin Configurations
20 CS
3P2T
________________________Applications
Ordering Information continued on last page.
* Dice are specified at TA = +25°C, DC parameters only.
18 OUT0
19 V-
V-
7
RGB Multiplexing
IN0B
8
RGB Color Video Overlay Editors
GND
9
RGB Color Video Security Systems
IN1B 10
15 GND
RGB Medical Imaging
GND 11
14 V+
Coaxial-Cable Line Drivers
IN2B 12
13 OUT2
17 V+
16 OUT1
DIP/SO
Typical Operating Circuit appears at end of data sheet.
Pin Configurations continued at end of data sheet.
________________________________________________________________ Maxim Integrated Products
Call toll free 1-800-998-8800 for free samples or literature.
1
MAX463–MAX470
_______________General Description