ISL71841SEH

Radiation Hardened 30V 32-Channel Analog Multiplexer

OVERVIEW

The ISL71841SEH is a radiation hardened, 32-channel high ESD protected multiplexer fabricated using the Renesas proprietary P6SOI (Silicon On Insulator) process technology to mitigate single event effects. 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 one of 32 available channels. An inactive channel is separated from an active channel by a high impedance, which inhibits any interaction between them.

The ISL71841SEH’s low rON allows for improved signal integrity and reduced power losses. The ISL71841SEH 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 ISL71841SEH also incorporates input analog overvoltage protection, which disables the switch to protect downstream devices.

The ISL71841SEH is available in a 48 Ld CQFP, 44 Ld CLCC, or die form and operates across the extended temperature range of -55°C to +125°C.

A 16-channel version in a 28 Ld CDFP is also available. Refer to the ISL71840SEH datasheet for more information.

KEY FEATURES

  • DLA SMD# 5962-15220
  • 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) && SEB LETTH: 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.

BLOCK DIAGRAM

 Block Diagram

PARAMETRICS

Parameters
ISL71841SEH
Basic Information
Production Status
Mass Production
Class
V, /PROTO
DLA SMD
5962-15220
High Dose Rate (HDR) krad(Si)
100
Low Dose Rate (ELDRS) krad(Si)
50
SEL (MeV/mg/cm2)
86.4
SMD URL
Qualification Level
QML Class V (space)
Can Sample
YES
Temperature Range
-55 to +125

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