358RPFS Datasheet, PDF (1/9 Pages) Maxwell Technologies – 8-Channel Fault-Protected Analog Multiplexer

358
8-Channel Fault-Protected
Analog Multiplexer
FEATURES:
• RAD-PAK® technology-hardened against natural space radi-
ation
• Total dose hardness:
- > 50 krad (Si), depending upon space mission
• Excellent Single Event Effect
- SEL_TH > 80 MeV/mg/cm²
- SEU_TH > 80 MeV/mg/cm²
• Package:
- 16 pin RAD-PAK® Flat Pack
• All switches off with power supplies off
• On channel turns OFF if overvoltage occurs
• Only nanoamperes of input current under all fault condi-
tions
• Operates from ±4.5 to ±18V supplies
• All digital inputs are TTL and CMOS compatible
• Significantly reduced power consumption
Logic Diagram
DESCRIPTION:
Maxwells’s 358 8-Channel single-ended (1 of 8) multiplexers
with fault protection features a greater than 50 krad (Si) total
dose tolerance, depending upon space mission. Using a
series N-channel, P-channel, N-channel structure, these multi-
plexers provide significantly improved fault protection. If the
power supplies to the fault-protected multiplexer are inadvert-
ently turned off while input voltages are still applied, all chan-
nels in the multiplexer are turned off, and only a few
nanoamperes of leakage current will flow into the inputs. This
protects not only the multiplexer and the circuitry driven by the
multiplexer, but also protects the sensors or signal sources
which drive the multiplexer. All digital inputs have logic thresh-
olds of 0.8V and 2.4V, ensuring both TTL and CMOS compati-
bility without requiring pullup resistors. Break-before-make
operation is guaranteed. Power supply currents have been
reduced and typical power dissipation is less than 2 mW.
Maxwell Technologies' patented RAD-PAK® packaging technol-
ogy incorporates radiation shielding in the microcircuit pack-
age. It eliminates the need for box shielding while providing
the required radiation shielding for a lifetime in orbit or a space
mission. In a GEO orbit, Rad-Pak® provides true greater than
50 krad (Si) total radiation dose tolerance, dependent upon
space mission. This product is available with packaging and
screening up to Class S.
02.06.04 Rev 3
[phone] - Fax: [phone] - www.maxwell.com
All data sheets are subject to change without notice 1
©2004 Maxwell Technologies
All rights reserved.