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Rad-Hard 16 Channel BiCMOS Analog Multiplexer with

High-Z Analog Input Protection

HS-1840ARH, HS-1840AEH,

HS-1840BRH, HS-1840BEH

The HS-1840ARH, HS-1840AEH, HS-1840BRH and HS-1840BEH are

radiation hardened, monolithic 16 channel multiplexers constructed

with the Intersil Rad-Hard Silicon Gate, bonded wafer, Dielectric

Isolation process. They are designed to provide a high input impedance

to the analog source if device power fails (open), or the analog signal

voltage inadvertently exceeds the supply by up to

±35V, regardless of

whether the device is powered on or off. Excellent for use in redundant

applications, since the secondary device can be operated in a standby

unpowered mode affording no additional power drain. More

significantly, a very high impedance exists between the active and

inactive devices preventing any interaction. One of sixteen channel

selections is controlled by a 4-bit binary address plus an Enable-Inhibit

input which conveniently controls the ON/OFF operation of several

multiplexers in a system. All inputs have electrostatic discharge

protection. The HS-1840ARH, HS-1840AEH, HS-1840BRH and

HS-1840BEH are processed and screened in full compliance with

MIL-PRF-38535 and QML standards. The devices are available in a

28 Ld SBDIP and a 28 Ld Ceramic Flatpack.

Specifications for Rad Hard QML devices are controlled by the

Defense Logistics Agency Land and Maritime (DLA). The SMD

numbers listed here must be used when ordering.

Detailed Electrical Specifications for these devices are contained in

SMD 5962-95630. A “hot-link” is provided on our homepage for

downloading:

http://www.landandmaritime.dla.mil/Downloads/MilSpec/Smd/956

30.pdf

Features

• Electrically Screened to SMD # 5962-95630

• QML Qualified per MIL-PRF-38535 Requirements

• Pin-to-Pin for Intersil’s HS-1840RH and HS-1840/883S

• Improved Radiation Performance

-Gamma Dose (

• Improved Access Time 1.5µs (Max) Over Temp and Post Rad

• High Analog Input Impedance 500M

Ω During Power Loss (Open)

•

±35V Input Overvoltage Protection (Power On or Off)

• Dielectrically Isolated Device Islands

• Excellent in Hi-Rel Redundant Systems

• Break-Before-Make Switching

•No Latch-Up

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 1-888-468-3774

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.

April 6, 2012

FN4355.5