•RAD-PAK® technology-hardened against natural space radi-
ation
• Total dose hardness:
- > 50 krad (Si), depending upon space mission
• Excellent Single Event Effect
- SEL
> 80 MeV/mg/cm
TH
- SEUTH > 80 MeV/mg/cm
• Package:
- 16 pin R
• All switches off with power supplies off
• On channel turns OFF if overvoltage occurs
• Only nanoamperes of input current under all fault conditions
• Operates from ±4.5 to ±18V supplies
• All digital inputs are TTL and CMOS compatible
• Significantly reduced power consumption
AD-PAK® Flat Pack
2
2
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 multiplexers provide significantly improved fault protection. If the
power supplies to the fault-protected multiplexer are inadvertently turned off while input voltages are still applied, all channels 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 thresholds of 0.8V and 2.4V, ensuring both TTL and CMOS compatibility 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 R
ogy incorporates radiation shielding in the microcircuit package. 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.
(V+ = 15V, V- = -15V, VAH = 2.4V, VAL = 0.8V, TA = -55 TO +125°C, UNLESSOTHERWISESPECIFIED)
P
ARAMETERTEST CONDITIONSSYMBOLTEMPMINTYPMAXUNITS
358
Positive Supply CurrentVEN = 0.8V or 2.4V
V
= 0V or 5V
A
Negative Supply CurrentV
Power Supply Range for Continuous Operation
1. The value shown is the steady state value. The transient leakage is typically 10 µA.
2. When the analog signal exceeds +13.5V or -12V the blocking action of the gate structure goes into operation. Only leakage
currents flow and the channel on resistance rises to infinity.
3. Digital input leakage is primarily due to the clamp diodes. Typical leakage is less than 1 nA @ +25°C.
4. Guaranteed by design.
5. Electrical characteristics, such as ON Resistance, will change when power supplies other than ±15V are used.
These data sheets are created using the chip manufacturer’s published specifications. Maxwell Technologies verifies
functionality by testing key parameters either by 100% testing, sample testing or characterization.
The specifications presented within these data sheets represent the latest and most accurate information available to
date. However, these specifications are subject to change without notice and Maxwell Technologies assumes no
responsibility for the use of this information.
Maxwell Technologies’ products are not authorized for use as critical components in life support devices or systems
without express written approval from Maxwell Technologies.
Any claim against Maxwell Technologies must be made within 90 days from the date of shipment from Maxwell Technologies. Maxwell Technologies’ liability shall be limited to replacement of defective parts.
358
Memory
1000544
12.20.01 Rev 2
All data sheets are subject to change without notice