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ISL71840SEH View Datasheet(PDF) - Intersil

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ISL71840SEH Datasheet PDF : 27 Pages
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DATASHEET
Radiation Hardened 30V 16-Channel Analog
Multiplexer
ISL71840SEH
The ISL71840SEH is a radiation hardened, 16-Channel high
ESD protected multiplexer that is fabricated using Intersil’s
proprietary P6SOI (Silicon On Insulator) process technology to
mitigate single-event effects and total ionizing dose. It
operates with a dual supply voltage ranging from ±10.8V to
±16.5V. It has a 4-bit address plus an enable pin that can be
driven with adjustable logic thresholds to conveniently select 1
of 16 available channels. An inactive channel is separated
from an active channel by a high impedance, which inhibits
any interaction between them.
The ISL71840SEH’s low rON allows for improved signal
integrity and reduced power losses. The ISL71840SEH is also
designed for cold sparing making it excellent for high reliability
applications that have redundancy requirements. It is
designed to provide a high impedance to the analog source in
a powered off condition, making it easy to add additional
backup devices without loading signal sources. The
ISL71840SEH also incorporates input analog overvoltage
protection, which will disable the switch to protect downstream
devices.
The ISL71840SEH is available in a 28 Ld CDFP or die form and
operates across the extended temperature range of -55°C to
+125°C.
There is also a 32-Channel version available called the
ISL71841SEH offered in a 48 Ld CQFP, please refer to the
ISL71841SEH datasheet for more information. For a list of
differences please refer to Table 1 on page 3.
Related Literature
UG028, “ISL71840SEHEV1Z Evaluation Board User Guide”
TR004, “Single Event Effects (SEE) Testing of the
ISL71840SEH 16:1 30V Mux”
Features
• DLA SMD# 5962-15219
• Fabricated using P6SOI process technology
- Provides latch-up immunity
• ESD protection 8kV (HBM)
• Rail-to-rail operation
• Overvoltage protection
• Low rON. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <500Ω (typ)
• Flexible split rail operation
- Positive supply above GND (V+) . . . . . . . +10.8V to +16.5V
- Negative supply below GND (V-) . . . . . . . . -10.8V to -16.5V
• Adjustable logic threshold control with VREF Pin
• Cold sparing capable (from ground). . . . . . . . . . . . . . . . .±25V
• Analog overvoltage range (from ground) . . . . . . . . . . . . .±35V
• Off switch leakage . . . . . . . . . . . . . . . . . . . . . . . . 100nA (max)
• Transition times (TR, TF). . . . . . . . . . . . . . . . . . . . . . 500ns (typ)
• Break-before-make switching
• Grounded metal lid (internally connected)
• Operating temperature range. . . . . . . . . . . .-55°C to +125°C
• Radiation tolerance
- High dose rate (50-300rad(Si)/s). . . . . . . . . . . 100krad(Si)
- Low dose rate (0.01rad(Si)/s) . . . . . . . . . . . . 100krad(Si)*
- SEB LETTH . . . . . . . . . . . . . . . . . . . . . . . . .86.4 MeV•cm2/mg
* Product capability established by initial characterization. All
subsequent lots are assurance tested to 50krad
(0.01rad(Si)/s) wafer-by-wafer.
ISL71840SEH
IN01
IN02
IN03
.
OUT
ADC
.
.
IN16
4
ADDRESS
EN
FIGURE 1. TYPICAL APPLICATION
June 15, 2015
1
FN8734.0
600
500
400 +25°C
+125°C
300
200
100
-55°C
0
-20 -15 -10 -5.0 0 5.0 10 15 20
SWITCH INPUT VOLTAGE (V)
FIGURE 2. rDS(ON) Vs POWER SUPPLY ACROSS SWITCH INPUT
COMMON MODE VOLTAGE AT +25°C
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas LLC 2015. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.
 

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