MAXWELL 358RPFS, 358RPFI, 358RPFE, 358RPFB Datasheet

358

8-Channel Fault-Protected

Analog Multiplexer

Memory

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

> 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.

AD-PAK® packaging technol-

1000544

[phone] - Fax: [phone] - www.maxwell.com

12.20.01 Rev 2

All data sheets are subject to change without notice

©2001 Maxwell Technologies

All rights reserved.

1

8-Channel Fault-Protected Analog Multiplexer

TABLE 1. PINOUT DESCRIPTION

PIN SYMBOL DESCRIPTION

1, 16, 15 A0-A2 Address Inputs

2 Enable Enable Inputs

3 -V Supply Negative Supply Voltage

4-7, 12-9 IN1-IN8 Analog Inputs-bidirectional

8 OUT Output-bidirectional

13 +V Supply Positive Supply Voltage

14 GND Ground

TABLE 2. 358 ABSOLUTE MAXIMUM RATINGS

Parameter Symbol Typ Units

Voltage between Supply Pins
V+
V-

Digital Input Overvoltage
VEN, VA Vsupply (+)

Vsupply (-)

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

Vsupply (-)

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

Vsupply (-)

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

Thermal Impedance

Operating Temperature Range: T

Storage Temperature Range: T

Θ

JC

A

S

+44
+22

-22

+4

-4

+20

-20

+35

-35

20
40

2.69 °C/W

-55 to +125 °C

-65 to +150 °C

V

V

V

V

mA

358

Memory

(V+ = 15V, V- = -15V, VAH = 2.4V, VAL = 0.8V, TA = -55 TO +125°C, UNLESS OTHERWISE SPECIFIED)

P

ARAMETER TEST CONDITIONS SYMBOL TEMP MIN TYP MAX UNITS

STATIC

ON Resistance V

1000544

TABLE 3. 358 ELECTRICAL CHARACTERISTICS

= ±10V, IS = ±100µA

D

V

= 0.8V, VAH = 2.4V

AL

12.20.01 Rev 2

r

DS(ON)

+25°C

Full

All data sheets are subject to change without notice

1.2

1.5

1.5

1.8

©2001 Maxwell Technologies

All rights reserved.

kΩ

2

8-Channel Fault-Protected Analog Multiplexer

TABLE 3. 358 ELECTRICAL CHARACTERISTICS

(V+ = 15V, V- = -15V, VAH = 2.4V, VAL = 0.8V, TA = -55 TO +125°C, UNLESS OTHERWISE SPECIFIED)

P

ARAMETER TEST CONDITIONS SYMBOL TEMP MIN TYP MAX UNITS

358

OFF Input Leakage Current VS = ±10V, VD = +10V

V

= 0.8V

EN

OFF Output Leakage Current V

ON Channel Leakage Current V

= ±10V, VS = +10V

D

V

= 0.8V

EN

= VD = ±10V

S(ALL)

1

I

S(OFF)

I

D(OFF)

I
VAH = VEN = 2.4V
V

= 0.8V

AL

Analog Signal Range

2

FAULT

Output Leakage Current (with
Overvoltage)

Input Leakage Current (with Over-

1

V

= 0V

D

Analog Overvoltage = ±33V

V

= ±25V, VO = ±10V

IN

1

I

D(OFF)

I

S(OFF)

voltage)

Input Leakage Current (w/ Power
Supplies Off)

V

= ±25V, VEN = VO = 0V

IN

A

= A1 = A2 = OV or 5V

O

I

S(OFF)

INPUT

Input Low Threshold V

Input High Threshold V

Input Leakage Current (High or

V

= 4V or 0V

A

3

Low)

D(ON)

V

AN

AL

AH

I

A

+25°C

Full

+25°C

Full

+25°C

Full

0.03

0.1

0.1

50

200

200

nA

nA

nA

2

Full -15 15 V

+25°C

Full

4.0

2.0

nA
µA

+25°C 5.0 µA

+25°C 2.0 µA

Full 0.8 V

Full 2.4 V

Full 1.0 µA

Memory

DYNAMIC

Access Time t

Break-Before-Make Delay V

Enable Delay (ON) t

Enable Delay (OFF) t

= ±5V, VIN = ±10V

EN

A

, A1, A2 Strobed

O

t

on-toff

on(EN)

off(EN)

Setting Time: (0.1%)

(0.01%)

“OFF Isolation”

4

VEN = 0.8V, R

= 1kΩ

L

CL = 15pF, V = 7V

RMS

f = 100kHz

Channel Input Capacitance C

Channel Output Capacitance C

S(OFF)

D(OFF)

Digital Input Capacitance C

Digital Output Capacitance C

DS(OFF)

SUPPLY

+25°C 0.5 1.0 µs

A

+25°C 25 80 ns

+25°C

Full

+25°C

Full

t

+25°C 1.2

sett

300 500

1000

300 500

1000

ns

ns

µs

3.5

+25°C 50 68 db

+25°C 5 pF

+25°C 25 pF

+25°C 5 pF

A

+25°C 0.1 pF

1000544

12.20.01 Rev 2

All data sheets are subject to change without notice

©2001 Maxwell Technologies

All rights reserved.

3