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(858) 503-3000 - Fax: (858) 503-3301 - www.maxwell.com

8-Channel Fault-Protected

358

Analog Multiplexer

02.06.04 Rev 3

EATURES

· R

-P

® 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

- SEU

> 80 MeV/mg/cm

· Package:

- 16 pin R

-P

® 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

ESCRIPTION

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 R

-P

® 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.

Logic Diagram

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8-Channel Fault-Protected Analog Multiplexer

358

02.06.04 Rev 3

ABLE

1. P

INOUT

ESCRIPTION

YMBOL

ESCRIPTION

1, 16, 15

A0-A2

Address Inputs

Enable

Enable Inputs

-V Supply

Negative Supply Voltage

4-7, 12-9

IN1-IN8

Analog Inputs-bidirectional

OUT

Output-bidirectional

+V Supply

Positive Supply Voltage

GND

Ground

ABLE

2. 358 A

BSOLUTE

AXIMUM

ATINGS

ARAMETER

YMBOL

NITS

Voltage between Supply Pins
V+
V-

+44
+22

-22

Digital Input Overvoltage
VEN, VA Vsupply (+)

Vsupply (-)

-4

Analog Input Overvoltage with Multiplexer
Power On:
VS Vsupply (+)

Vsupply (-)

+20

-20

Analog Input Overvoltage with Multiplexer
Power Off:
VS Vsupply (+)

Vsupply (-)

+35

-35

Continuous Current
Peak Current
(Pulse at 1 ms, 10% duty cycle max)

20
40

Thermal Impedance

2.69

°C/W

Weight

2.25

Grams

Operating Temperature Range:

-55 to +125

°C

Storage Temperature Range:

-65 to +150

°C

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8-Channel Fault-Protected Analog Multiplexer

358

02.06.04 Rev 3

ABLE

3. 358 E

LECTRICAL

HARACTERISTICS

= 15V, V

= -15V, V

= 2.4V, V

= 0.8V, T

= -55

+125°C,

UNLESS

OTHERWISE

SPECIFIED

)

ARAMETER

EST

ONDITIONS

UBGROUPS

YMBOL

EMP

NITS

STATIC

ON Resistance

= ±10V, I

= ±100µ A

= 0.8V, V

= 2.4V

1, 2, 3

DS(ON)

+25°C

Full

1.2
1.5

1.5
1.8

OFF Input Leakage Cur-
rent

= ±10V, V

= +10V

= 0.8V

1, 2, 3

S(OFF)

+25°C

Full

0.03

OFF Output Leakage
Current

= ±10V, V

= +10V

= 0.8V

1, 2, 3

D(OFF)

+25°C

Full

0.1

200

ON Channel Leakage
Current

S(ALL)

= V

= ±10V

= V

= 2.4V

= 0.8V

1, 2, 3

D(ON)

+25°C

Full

0.1

200

Analog Signal Range

1, 2, 3

Full

-15

FAULT

Output Leakage Current
(with Overvoltage)

= 0V

Analog Overvoltage =
±33V

1, 2, 3

D(OFF)

+25°C

Full

4.0

2.0

µ A

Input Leakage Current
(with Overvoltage)

= ±25V, V

= ±10V

1, 2, 3

S(OFF)

+25°C

5.0

µ A

Input Leakage Current
(w/ Power Supplies Off)

= ±25V, V

= V

= 0V

= A

= OV or 5V

1, 2, 3

S(OFF)

+25°C

2.0

µ A

INPUT

Input Low Threshold

1, 2, 3

Full

0.8

Input High Threshold

1, 2, 3

Full

2.4

Input Leakage Current
(High or Low)

= 4V or 0V

1, 2, 3

Full

1.0

µ A

DYNAMIC

Access Time

1, 2, 3

+25°C

0.5

1.0

µ s

Break-Before-Make
Delay

= ±5V, V

= ±10V

, A

Strobed

9, 10, 11

on-

off

+25°C

Enable Delay (ON)

9, 10, 11

on(EN)

+25°C

Full

300

500

1000

Enable Delay (OFF)

9, 10, 11

off(EN)

+25°C

Full

300

500

1000

Setting Time: (0.1%)

(0.01%)

9, 10, 11

sett

+25°C

1.2
3.5

µ s

"OFF Isolation"

= 0.8V, R

= 1k

= 15pF, V = 7V

RMS

f = 100kHz

4, 5, 6

+25°C

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8-Channel Fault-Protected Analog Multiplexer

358

02.06.04 Rev 3

Channel Input
Capacitance

4, 5, 6

S(OFF)

+25°C

Channel Output
Capacitance

4, 5, 6

D(OFF)

+25°C

Digital Input
Capacitance

4, 5, 6

+25°C

Digital Output
Capacitance

4, 5, 6

DS(OFF)

+25°C

0.1

SUPPLY

Positive Supply Current

= 0.8V or 2.4V

= 0V or 5V

1, 2, 3

I+

+25°C

Full

0.1
0.3

0.6
0.7

Negative Supply Current V

= 0.8V or 2.4V

= 0V or 5V

1, 2, 3

I-

+25°C

Full

0.01
0.02

0.1
0.2

Power Supply Range for
Continuous Operation

1, 2, 3

+25°C

±4.5

±18

1. The value shown is the steady state value. The transient leakage is typically 10 µ A.

2. When the analog signal exceeds +13.5V or -12V the blocking action of the gate structure goes into operation. Only leakage cur-

rents 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.

ABLE

3. 358 E

LECTRICAL

HARACTERISTICS

= 15V, V

= -15V, V

= 2.4V, V

= 0.8V, T

= -55

+125°C,

UNLESS

OTHERWISE

SPECIFIED

)

ARAMETER

EST

ONDITIONS

UBGROUPS

YMBOL

EMP

NITS

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8-Channel Fault-Protected Analog Multiplexer

358

02.06.04 Rev 3

IGURE

1. I

NPUT

EAKAGE

. I

NPUT

OLTAGE

WITH

V+ = V- = 0V

IGURE

2. O

HANNEL

EAKAGE

URRENT

. I

NPUT

OLTAGE

WITH

±15V S

UPPLIES

IGURE

3. O

UTPUT

EAKAGE

. O

HANNEL

VERVOLTAGE

WITH

±15V S

UPPLIES

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8-Channel Fault-Protected Analog Multiplexer

358

02.06.04 Rev 3

IGURE

4. R

DS(ON)

. I

NPUT

OLTAGE

Logic "0" = VAL < 0.8V, Logic "1" = VAH > 2.4V

TRUTH TABLE

ON SWITCH

NONE

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8-Channel Fault-Protected Analog Multiplexer

358

02.06.04 Rev 3

All dimensions in inches

16-P

-P

AK®

LAT

ACK

ACKAGE

YMBOL

IMENSIONS

.115

.135

.150

.015

.017

.019

.004

.005

.007

0.407

.415

.423

.275

.280

.285

0.500

.150

.156

0.162

.030

.062

.050 BSC

.325

.335

.345

.020

.033

.045

.005

.024

0.045

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8-Channel Fault-Protected Analog Multiplexer

358

02.06.04 Rev 3

Important Notice:

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 Tech-
nologies. Maxwell Technologies' liability shall be limited to replacement of defective parts.

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8-Channel Fault-Protected Analog Multiplexer

358

02.06.04 Rev 3

Product Ordering Options

Model Number

Feature

Option Details

358

Screening Flow

Package

Radiation Feature

Base Product
Nomenclature

Monolithic
S = Maxwell Class S
B = Maxwell Class B
I = Industrial (testing @ -55°C,
+25°C, +125°C)
E = Engineering (testing @ +25°C

F = Flat Pack

RP = R

-P

® package

8-Channel Fault-Protected Ana-
log Multiplexer

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