Intersil Corporation HS-508ARH-T Datasheet

HS-508ARH-T

Data Sheet July 1999 File Number

Radiation Hardened 8 Channel CMOS
Analog Multiplexer with Overvoltage
Protection

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, butinputsignalsarepresent.
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

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.
www.intersil.com/spacedefense/ne wsafc lasst.asp

Intersil‘s Quality Management Plan (QM Plan), listing all
Class T screening operations, is also available on our
website.

www.intersil.com/quality/manuals.asp

Ordering Information

TEMP.

ORDERING

NUMBER

5962R9674201TEC HS1-508ARH-T -55 to 125
5962R9674201TXC HS9-508ARH-T -55 to 125

NOTE:

Minimumorder quantityfor-T is 150 units through

distribution, or 450 units direct.

PART

NUMBER

RANGE

(oC)

4605.1

Features

• QML Class T, Per MIL-PRF-38535

• Radiation Performance

5

- Gamma Dose (γ) 1 x 10

RAD(Si)

- No Latch-Up, Dielectrically Isolated Device Islands

- SEP LET > 110MeV/mg/cm

2

• 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

Pinouts

HS1-508ARH-T (SBDIP), CDIP2-T16

TOP VIEW

16

1

AO

2

EN

3

V-

4

IN 1

5

IN 2

6

IN 3

7

IN 4

8

OUT

HS9-508ARH-T (FLATPACK), CDFP4-F16

TOP VIEW

A0 A1

EN

V­IN1
IN2
IN3
IN4

OUT

116
2
3
4
5
6
7
8

A1

15

A2

14

GND

13

V+

12

IN 5

11

IN 6

10

IN 7

9

IN 8

15
14
13
12
11
10

9

A2
GND

V+
IN5
IN6
IN7
IN8

1

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

www.intersil.com or 407-727-9207

Satellite Applications Flow™ (SAF) is a trademark of Intersil Corporation.

| Copyright © Intersil Corporation 1999

Functional Diagram

HS-508ARH-T

IN 1

OUT

IN 8

DIGITAL

ADDRESS

A0

A1

A2

EN

BUFFER AND

LEVEL SHIFTER

1

8

DECODERSADDRESS INPUT

NP

N

P

MULTIPLEX

SWITCHES

TRUTH TABLE

A2 A1 A0 EN ‘‘ON’’ CHANNEL

X X X L NONE

LLLH 1

LLHH 2

LHLH 3

LHHH 4

HLLH 5

HLHH 6

HHLH 7

HHHH 8

2