ISL73841SEH Datasheet, PDF (1/23 Pages) Intersil Corporation – Radiation Tolerant 30V 32-Channel Analog Multiplexer

DATASHEET
Radiation Tolerant 30V 32-Channel Analog Multiplexer
ISL73841SEH
The ISL73841SEH is a radiation tolerant, 32-channel high ESD
protected multiplexer that is fabricated using Intersil’s
proprietary P6SOI (Silicon On Insulator) process technology. It
operates with a dual supply voltage ranging from ±10.8V to
±16.5V. It has a 5-bit address plus an enable pin that can be
driven with adjustable logic thresholds to conveniently select 1
of 32 available channels. An inactive channel is separated
from an active channel by a high impedance, which inhibits
any interaction between them.
The ISL73841SEH low r_ON allows for improved signal integrity
and reduced power losses. The ISL73841SEH 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
ISL73841SEH also incorporates input analog overvoltage
protection, which will disable the switch to protect downstream
devices.
The ISL73841SEH is available in a 48 Ld CQFP or die form and
operates across the extended temperature range of -55°C to
+125°C.
There is also a 16-channel version available offered in a 28 Ld
CDFP, please refer to the ISL73840SEH datasheet for more
information. For a list of differences please refer to Table 1 on
page 3.
Features
• DLA SMD# 5962-15220
• Fabricated using P6SOI process technology
• ESD protection 8kV (HBM)
• Rail-to-rail operation
• Overvoltage protection
• Low r_ON. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <500Ω (typical)
• 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 (t_R, t_F) . . . . . . . . . . . . . . . . . . . 500ns (typical)
• Break-before-make switching
• Grounded metal lid (internally connected)
• Operating temperature range. . . . . . . . . . . .-55°C to +125°C
• Radiation tolerance
- Low dose rate (0.01rad(Si)/s) . . . . . 50krad(Si) (see Note)
- SEB LET_TH . . . . . . . . . . . . . . . . . . . . . . . . .86.4MeV• cm²/mg
NOTE: Product capability established by initial characterization. All
subsequent lots are assurance tested to 50krad (0.01rad(Si)/s)
wafer-by-wafer.
ISL73841SEHM
IN01
IN02
IN03
.
OUT
ADC
.
.
IN32
5
ADDRESS
EN
FIGURE 1. TYPICAL APPLICATION
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. r_DS(ON) vs POWER SUPPLY ACROSS SWITCH INPUT
COMMON-MODE VOLTAGE AT +25°C
May 31, 2016
1
FN8846.1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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