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Intersil Corporation - 4-Channel Wideband and Video Multiplexer

Numéro de référence HI-524
Description 4-Channel Wideband and Video Multiplexer
Fabricant Intersil Corporation 
Logo Intersil Corporation 





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HI-524 fiche technique
Data Sheet
HI-524
July 1999 File Number 3148.2
4-Channel Wideband and Video
Multiplexer
The HI-524 is a 4-Channel CMOS analog multiplexer designed
to process single-ended signals with bandwidths up to 10MHz.
The chip includes a 1 of 4 decoder for channel selection and an
enable input to inhibit all channels (chip select).
Three CMOS transmission gates are used in each channel,
as compared to the single gate in more conventional CMOS
multiplexers. This provides a double barrier to the unwanted
coupling of signals from each input to the output. In addition,
Dielectric Isolation (DI) processing helps to insure the
Crosstalk is less than -60dB at 10MHz.
The HI-524 is designed to operate into a wideband buffer
amplifier such as the Intersil HA-2541. The multiplexer chip
includes two “ON” switches in series, for use as a feedback
element with the amplifier. This feedback resistance
matches and tracks the channel ON resistance, to minimize
the amplifier VOS and its variation with temperature.
The HI-524 is well suited to the rapid switching of video and
other wideband signals in telemetry, instrumentation, radar
and video systems.
Ordering Information
PART
NUMBER
HI1-0524-5
HI3-0524-5
TEMP. RANGE
(oC)
PACKAGE
PKG. NO.
0 to 75
18 Ld CERDIP F18.3
0 to 75
18 Ld PDIP
E18.3
Pinout
HI-524 (CERDIP, PDIP)
TOP VIEW
+V 1
OUT 2
SIG GND 3
SIG GND 4
IN4 5
SIG GND 6
IN3 7
SUPPLY GND 8
A1 9
18 FB (IN)
17 -V
16 FB (OUT)
15 SIG GND
14 IN2
13 SIG GND
12 IN1
11 EN
10 A0
Features
• Crosstalk (10MHz) . . . . . . . . . . . . . . . . . . . . . . . . < -60dB
• Fast Access Time . . . . . . . . . . . . . . . . . . . . . . . . . 150ns
• Fast Settling Time . . . . . . . . . . . . . . . . . . . . . . . . . 200ns
• TTL Compatible
Applications
• Wideband Switching
• Radar
• TV Video
• ECM
Functional Diagram
IN1 FB (IN)
SIG GND
IN2
SIG GND
IN3
FB (OUT)
OUTPUT
SIG GND
IN4
SIG GND
SIG GND
1 OF 4
DECODER
1
-15V SUP +15V EN A0 A1
GND
TRUTH TABLE
A1 A0 EN ON CHANNEL
X X L None
L L H 1 (Note)
L HH
2
HLH
3
HHH
4
NOTE: Channel 1 is shown selected in the Functional Diagram.
1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Copyright © Intersil Corporation 1999

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