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FN3142.8
HI-506, HI-507, HI-508, HI-509
Single 16 and 8/Differential 8-Channel and
4-Channel CMOS Analog Multiplexers
The HI-506/HI-507 and HI-508/HI-509 monolithic CMOS
multiplexers each include an array of sixteen and eight
analog switches respectively, a digital decoder circuit for
channel selection, voltage reference for logic thresholds, and
an enable input for device selection when several
multiplexers are present. The Dielectric Isolation (DI)
process used in fabrication of these devices eliminates the
problem of latchup. DI also offers much lower substrate
leakage and parasitic capacitance than conventional junction
isolated CMOS (see Application Note AN520).
The switching threshold for each digital input is established by
an internal +5V reference, providing a guaranteed minimum
2.4V for logic “1” and maximum 0.8V for logic “0”. This allows
direct interface without pullup resistors to signals from most
logic families: CMOS, TTL, DTL and some PMOS. For
protection against transient overvoltage, the digital inputs
include a series 200
Ω resistor and diode clamp to each
supply.
The HI-506 is a single 16-channel, the HI-507 is an
8-channel differential, the HI-508 is a single 8-channel and
the HI-509 is a 4-channel differential multiplexer.
If input overvoltages are present, the HI-546/HI-547/HI-548/
HI-549 multiplexers are recommended.
Features
Pb-Free Available (RoHS Compliant) (See Ordering Info)
Low ON Resistance . . . . . . . . . . . . . . . . . . . . . . . . 180
Ω
Wide Analog Signal Range
. . . . . . . . . . . . . . . . . . . . . ±15V
TTL/CMOS Compatible
Access Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250ns
Maximum Power Supply . . . . . . . . . . . . . . . . . . . . . . 44V
Break-Before-Make Switching
No Latch-Up
Replaces DG506A/DG506AA and DG507A/DG507AA
Replaces DG508A/DG508AA and DG509A/DG509AA
Pb-Free Available (RoHS Compliant)
Applications
Data Acquisition Systems
Precision Instrumentation
Demultiplexing
Selector Switch
Data Sheet
October 30, 2007
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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