Overview
Description
The ISL71840SEH is a radiation hardened, 16-channel high ESD protected multiplexer fabricated using the Renesas 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 one 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 disables 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. A 32-channel version in a 48 Ld CQFP is also available. Refer to the ISL71841SEH datasheet for more information.
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 (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 (tR, tF): 500ns (typical)
- 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) (see Note 1)
- SEB LETTH: 86.4MeV•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.
Comparison
Applications
Design & Development
Boards & Kits
Evaluation
ISL71840SEHEV1Z
Active
Radiation Hardened 16 and 32-Channel Analog Multiplexer Evaluation Board
The ISL71840SEH is a 16-channel, radiation hardened, ESD protected multiplexer fabricated using Renesas' proprietary P6SOI (Silicon On Insulator) process technology to mitigate single-event effects and total ionizing dose.
The ISL71840SEHEV1Z evaluation board has a DIP switch, which provides a...
Recommended Documents:
Evaluation
ISL71841SEHEV1Z
Active
Radiation Hardened 16 and 32-Channel Analog Multiplexer Evaluation Board
The ISL71841SEH is a 32-channel, radiation hardened, ESD protected multiplexer fabricated using Renesas' proprietary P6SOI (Silicon On Insulator) process technology to mitigate single-event effects and total ionizing dose.
The ISL71841SEHEV1Z evaluation board has a set of toggle switches, which...
Recommended Documents:
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.
Models
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Support
Support Communities
Get quick technical support online from Renesas Engineering Community technical staff.
Support Communities
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ISL71840SEH VREF range
In the datasheet for the ISL71840SEH analog mux it says the range the VREF input is 4.5 to 5.5 V. However, if I were to use 3.3V for VREF, would it still work? On page 23 it says that about 30% of VREF is what sets the ...
Jun 6, 2024 -
ISL71840SEH analogue multiplexer Simulation quarries
Hi Sub: ISL71840SEH analogue multiplexer Simulation quarries Good Day! We have done simulation on TINA and LT spice simulation tools with ISL71840SEH analogue multiplexer. We found following parameters exceed the data sheet limits. Sl.No Parameter Data sheet Specification Remarks Min. Typ. Max. Units 1 Switch Off Leakage Switch off ...
Aug 1, 2024 -
ISL71840SEH and HS-1840ARH, HS-1840AEH, HS-1840BRH, HS-1840BEH Electrical specifications data sheet
Hi Team, May I know the what is difference between ISL71840SEH and HS-1840ARH Electrical specifications? Is it same electrical specification or different specifications? ISL71840SEH data sheet have only CFP package and full electrical specs, but HS-1840ARH data sheet have both CFP and DIP package details but no electrical ...
Jan 28, 2025
FAQs
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Do the ISL71840SEH and ISL71841SEH logic inputs support 3.3V logic?
Question: Do the logic inputs of these muxes support 3.3V logic? Answer: The logic inputs are internally compared to approximately 30% of the VREF voltage. If you apply 5.0V on VREF, this means all digital inputs are compared to 1.4V; anything higher is a logic high, and ...
Jan 1, 1970 -
What are the differences and similarities between the ISL71840SEH and the HS-1840xRH?
Question: What are the differences and similarities between the ISL71840SEH and HS-1840xRH rad hard multiplexers? Answer: Differences: Lower RON (700Ω max vs. 3000Ω max) Rail-to-Rail Input (HS-1840A/B can only do +15V to -5V) Recommended supply voltage increased to ±16.5V (HS-1840A/B ...
Jan 1, 1970 -
Is the ISL71840SEH a drop in replacement for HS9-1840A or HS9-1840B?
Question: Is the ISL71840SEH a drop in replacement and functional equivalent to the HS9-1840A or HS9-1840B devices? Answer: Yes it is a drop in replacement. The ISL71840SEH is in the same 28 lead ceramic flatpack package as the HS9-1840A and HS9-1840B parts and thus should be ...
Jan 1, 1970