DATASHEET
ISL73840SEH
Radiation Tolerant 30V 16-Channel Analog Multiplexer
The ISL73840SEH is a radiation tolerant, 16-channel high ESD
protected multiplexer fabricated using the Renesas proprietary
P6SOI (Silicon On Insulator) process technology. 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 one of 16
available channels. An inactive channel is separated from an
active channel by a high impedance, which inhibits any
interaction between them.
Features
• DLA SMD #5962-15219
• Fabricated using P6SOI process technology
• ESD protection 8kV (HBM)
• Rail-to-rail operation
• Overvoltage protection
• Low rON. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <500Ω (typical)
The ISL73840SEH’s low rON allows for improved signal
integrity and reduced power losses. The ISL73840SEH 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
ISL73840SEH also incorporates input analog overvoltage
protection, which disables the switch to protect downstream
devices.
• 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 (maximum)
• Transition times (tR, tF) . . . . . . . . . . . . . . . . . . . 500ns (typical)
• Break-before-make switching
The ISL73840SEH is available in a 28 Ld CDFP or die form and
operates across the extended temperature range of -55°C to
+125°C.
• Grounded metal lid (internally connected)
• Operating temperature range. . . . . . . . . . . .-55°C to +125°C
A 32-channel version in a 48 Ld CQFP is also available. Refer
to the ISL73841SEH datasheet for more information. For a list
of differences between the ISL73840SEH and ISL73841SEH,
refer to Table 1 on page 3.
• Radiation tolerance
- Low dose rate (0.01rad(Si)/s) . . . .50krad(Si) (see Note 1)
- SEB LETTH . . . . . . . . . . . . . . . . . . . . . . . . .86.4 MeV•cm2/mg
NOTE:
1. Product capability established by initial characterization. All
subsequent lots are assurance tested to 50krad (0.01rad(Si)/s)
wafer-by-wafer.
600
ISL73840SEHM
500
IN01
IN02
IN03
+125°C
+25°C
400
300
200
100
0
OUT
ADC
.
.
.
IN16
4
-55°C
-10
ADDRESS
-20
-15
-5
0
5
10
15
20
EN
SWITCH INPUT VOLTAGE (V)
FIGURE 2. rDS(ON) vs POWER SUPPLY ACROSS SWITCH INPUT
COMMON-MODE VOLTAGE AT +25°C
FIGURE 1. TYPICAL APPLICATION
FN8845 Rev.4.00
Aug 10, 2023
Page 1 of 23
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