Overvoltage Protection. HS1-508ARH-T Datasheet
July 1999 File Number 4605.1
Radiation Hardened 8 Channel CMOS
Analog Multiplexer with Overvoltage
Intersil‘s Satellite Applications FlowTM (SAF) devices are
fully tested and guaranteed to 100kRAD total dose. This
QML Class T device is processed to a standard ﬂow
intended to meet the cost and shorter lead-time needs of
large volume satellite manufacturers, while maintaining a
high level of reliability.
The HS-508ARH-T is a dielectrically isolated, radiation
hardened, CMOS analog multiplexer incorporating an
important feature; it withstands analog input voltages much
greater than the supplies. This is essential in any system
where the analog inputs originate outside the equipment.
They can withstand a continuous input up to 10V greater
than either supply, which eliminates the possibility of
damage when supplies are off, but input signals are present.
Equally important, it can withstand brief input transient
spikes of several hundred volts; which otherwise would
require complex external protection networks. Necessarily,
ON resistance is somewhat higher than similar unprotected
devices, but very low leakage current combine to produce
low errors. Reference Application Notes 520 and 521,
available from the Semiconductor Products Division of
Intersil, for further information on the HS-508ARH-T
multiplexer in general.
Speciﬁcations for Rad Hard QML devices are controlled by
the Defense Supply Center in Columbus (DSCC). The SMD
numbers listed below must be used when ordering.
Detailed Electrical Speciﬁcations for the HS-508ARH-T
are contained in SMD 5962-96742. A “hot-link” is provided
from our website for downloading.
Intersil‘s Quality Management Plan (QM Plan), listing all
Class T screening operations, is also available on our
-55 to 125
-55 to 125
NOTE: Minimum order quantity for -T is 150 units through
distribution, or 450 units direct.
• QML Class T, Per MIL-PRF-38535
• Radiation Performance
- Gamma Dose (γ) 1 x 105 RAD(Si)
- No Latch-Up, Dielectrically Isolated Device Islands
- SEP LET > 110MeV/mg/cm2
• Analog/Digital Overvoltage Protection
• Fail Safe with Power Loss (No Latchup)
• Break-Before-Make Switching
• DTL/TTL and CMOS Compatible
• Analog Signal Range ±15V
• Fast Access Time
• Supply Current at 1MHz Address Toggle (Typ) 4mA
• Standby Power (Typ.) 7.5mW
HS1-508ARH-T (SBDIP), CDIP2-T16
IN 1 4
IN 2 5
IN 3 6
IN 4 7
12 IN 5
11 IN 6
10 IN 7
9 IN 8
HS9-508ARH-T (FLATPACK), CDFP4-F16
1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
www.intersil.com or 407-727-9207 | Copyright © Intersil Corporation 1999
Satellite Applications Flow™ (SAF) is a trademark of Intersil Corporation.
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