19-0219; Rev 2; 6/94
Two-Channel, Triple/Quad
RGB Video Switches and Buffers
_______________General Description
____________________________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
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 appli-
cations. The devices are all specified for ±±5 supply
operation with inputs and outputs as high as ±ꢀ.±5
when driving 1±0Ω loads (7±Ω back-terminated cable).
♦ Wide Output Swing:
2V into 75Ω
2.5V into 150Ω
♦ 300V/µs Slew Rate (2V/V gain)
♦ 20ns Channel Switching Time
Input capacitance is typically only ±pF, and channel-to-
channel crosstalk is better than 60dB, accomplished by
surrounding all inputs with AC ground pins. The on-
board amplifiers feature a ꢀ005/µs slew rate (3005/µs
for A5 = ꢀ5/5 amplifiers), and a bandwidth of 100MHz
(90MHz for A5 = ꢀ5/5 buffers). Channel selection is
controlled by a single TTL-compatible input pin or by a
microprocessor interface, and channel switch time is
only ꢀ0ns.
♦ 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
For design flexibility, devices are offered with buffer-
amplifier gains of 15/5 or ꢀ5/5 for 7±Ω back-terminated
applications. Output amplifiers have a guaranteed out-
put swing of ±ꢀ5 into 7±Ω.
PART
TEMP. RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +8±°C
-40°C to +8±°C
PIN-PACKAGE
ꢀ4 Narrow Plastic DIP
ꢀ4 Wide SO
MAX463CNG
MAX463CWG
MAX463C/D
MAX463ENG
MAX463EWG
Dice*
Devices offered in this series are as follows:
ꢀ4 Narrow Plastic DIP
ꢀ4 Wide SO
VOLTAGE GAIN
PART
DESCRIPTION
(V/V)
Ordering Information continued on last page.
MAX463
MAX464
MAX46±
MAX466
MAX467
MAX468
MAX469
MAX470
Triple RGB Switch & Buffer
Quad RGB Switch & Buffer
Triple RGB Switch & Buffer
Quad RGB Switch & Buffer
Triple 5ideo Buffer
1
1
ꢀ
ꢀ
1
1
ꢀ
ꢀ
* Dice are specified at T = +25°C, DC parameters only.
A
_________________Pin Configurations
TOP VIEW
IN0A
GND
IN1A
GND
IN2A
V-
1
2
3
4
5
6
7
8
9
24 GND
23 LE
Quad 5ideo Buffer
Triple 5ideo Buffer
MAX463
MAX465
22 EN
Quad 5ideo Buffer
21 A0
20 CS
________________________Applications
19 V-
Broadcast-Quality Color-Signal Multiplexing
V-
18 OUT0
17 V+
RGB Multiplexing
IN0B
GND
RGB Color 5ideo Overlay Editors
RGB Color 5ideo Security Systems
RGB Medical Imaging
16 OUT1
15 GND
14 V+
IN1B 10
GND 11
IN2B 12
Coaxial-Cable Line Drivers
13 OUT2
DIP/SO
Typical Operating Circuit appears at end of data sheet.
Pin Configurations continued at end of data sheet.
________________________________________________________________ Maxim Integrated Products
1
Call toll free 1-800-998-8800 for free samples or literature.