358 - Multiplexer, 8 Channel, Fault Protected

358
8-Channel Fault-Protected
Analog Multiplexer
Memory
Logic Diagram
FEATURES:
DESCRIPTION:
• RAD-PAK® technology-hardened against natural space radiation
• Total dose hardness:
- > 50 krad (Si), depending upon space mission
• Excellent Single Event Effect
- SELTH > 80 MeV/mg/cm2
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.
•
•
•
•
•
•
•
- SEUTH > 80 MeV/mg/cm2
Package:
- 16 pin RAD-PAK® Flat Pack
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
Maxwell Technologies' patented RAD-PAK® packaging technology 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.
02.06.04 Rev 3
(858) 503-3000 - Fax: (858) 503-3301 - www.maxwell.com
All data sheets are subject to change without notice
1
©2004 Maxwell Technologies
All rights reserved.
358
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
4-7, 12-9
IN1-IN8
8
OUT
13
+V Supply
14
GND
Negative Supply Voltage
Analog Inputs-bidirectional
Output-bidirectional
Positive Supply Voltage
Ground
TABLE 2. 358 ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
UNITS
Voltage between Supply Pins
V+
V-
+44
+22
-22
V
Digital Input Overvoltage
VEN, VA Vsupply (+)
Vsupply (-)
+4
-4
V
Analog Input Overvoltage with Multiplexer
Power On:
VS Vsupply (+)
Vsupply (-)
+20
-20
V
Analog Input Overvoltage with Multiplexer
Power Off:
VS Vsupply (+)
Vsupply (-)
+35
-35
V
20
40
mA
2.69
°C/W
2.25
Grams
Continuous Current
Peak Current
(Pulse at 1 ms, 10% duty cycle max)
Thermal Impedance
ΘJC
Weight
Operating Temperature Range:
TA
-55 to +125
°C
Storage Temperature Range:
TS
-65 to +150
°C
02.06.04 Rev 3
All data sheets are subject to change without notice
Memory
MAX
2
©2004 Maxwell Technologies
All rights reserved.
358
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)
PARAMETER
TEST CONDITIONS
SUBGROUPS
SYMBOL
TEMP
1, 2, 3
rDS(ON)
OFF Input Leakage Cur- VS = ±10V, VD = +10V
rent
VEN = 0.8V
1, 2, 3
IS(OFF)
OFF Output Leakage
Current
VD = ±10V, VS = +10V
VEN = 0.8V
1, 2, 3
ON Channel Leakage
Current
VS(ALL) = VD = ±10V1
VAH = VEN = 2.4V
VAL = 0.8V
1, 2, 3
Analog Signal Range
2
1, 2, 3
VAN
Full
1, 2, 3
ID(OFF)
+25°C
Full
MIN
TYP
MAX
UNITS
+25°C
Full
1.2
1.5
1.5
1.8
kΩ
+25°C
Full
0.03
+25°C
Full
0.1
+25°C
Full
0.1
STATIC
ON Resistance
VD = ±10V, IS = ±100µ A
VAL = 0.8V, VAH = 2.4V
ID(OFF)
ID(ON)
nA
50
nA
200
nA
2002
-15
15
V
2.0
nA
µA
FAULT
4.0
Input Leakage Current
(with Overvoltage)
VIN = ±25V, VO = ±10V1
1, 2, 3
IS(OFF)
+25°C
5.0
µA
Input Leakage Current
(w/ Power Supplies Off)
VIN = ±25V, VEN = VO = 0V
AO = A1 = A2 = OV or 5V
1, 2, 3
IS(OFF)
+25°C
2.0
µA
1, 2, 3
VAL
Full
0.8
V
1, 2, 3
VAH
Full
1, 2, 3
IA
Full
1, 2, 3
tA
+25°C
9, 10, 11
ton-toff
+25°C
Enable Delay (ON)
9, 10, 11
ton(EN)
+25°C
Full
300
500
1000
ns
Enable Delay (OFF)
9, 10, 11
toff(EN)
+25°C
Full
300
500
1000
ns
Setting Time: (0.1%)
(0.01%)
9, 10, 11
tsett
+25°C
1.2
3.5
µs
68
db
Memory
Output Leakage Current VD = 0V1
(with Overvoltage)
Analog Overvoltage =
±33V
INPUT
Input Low Threshold
Input High Threshold
Input Leakage Current
(High or Low)
VA = 4V or
0V3
2.4
V
1.0
µA
1.0
µs
DYNAMIC
Access Time
Break-Before-Make
Delay
“OFF Isolation”4
VEN = ±5V, VIN = ±10V
AO, A1, A2 Strobed
VEN = 0.8V, RL = 1kΩ
CL = 15pF, V = 7VRMS
f = 100kHz
4, 5, 6
02.06.04 Rev 3
+25°C
0.5
25
50
80
ns
All data sheets are subject to change without notice
3
©2004 Maxwell Technologies
All rights reserved.
358
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)
PARAMETER
TEST CONDITIONS
SUBGROUPS
SYMBOL
TEMP
MIN
TYP
MAX
UNITS
Channel Input
Capacitance4
4, 5, 6
CS(OFF)
+25°C
5
pF
Channel Output
Capacitance4
4, 5, 6
CD(OFF)
+25°C
25
pF
Digital Input
Capacitance4
4, 5, 6
CA
+25°C
5
pF
Digital Output
Capacitance4
4, 5, 6
CDS(OFF)
+25°C
0.1
pF
VEN = 0.8V or 2.4V
VA = 0V or 5V
1, 2, 3
I+
+25°C
Full
0.1
0.3
0.6
0.7
mA
Negative Supply Current VEN = 0.8V or 2.4V
VA = 0V or 5V
1, 2, 3
I-
+25°C
Full
0.01
0.02
0.1
0.2
mA
1, 2, 3
VOP
+25°C
±18
V
SUPPLY
Positive Supply Current
5
±4.5
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 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.
02.06.04 Rev 3
All data sheets are subject to change without notice
4
©2004 Maxwell Technologies
All rights reserved.
Memory
Power Supply Range for
Continuous Operation
358
8-Channel Fault-Protected Analog Multiplexer
FIGURE 1. INPUT LEAKAGE VS. INPUT VOLTAGE WITH V+ = V- = 0V
FIGURE 2. OFF CHANNEL LEAKAGE CURRENT VS. INPUT VOLTAGE WITH ±15V SUPPLIES
Memory
FIGURE 3. OUTPUT LEAKAGE VS. OFF CHANNEL OVERVOLTAGE WITH ±15V SUPPLIES
02.06.04 Rev 3
All data sheets are subject to change without notice
5
©2004 Maxwell Technologies
All rights reserved.
358
8-Channel Fault-Protected Analog Multiplexer
FIGURE 4. RDS(ON) VS. INPUT VOLTAGE
A2
A1
A0
EN
ON SWITCH
X
X
X
0
NONE
0
0
0
1
1
0
0
1
1
2
0
1
0
1
3
0
1
1
1
4
1
0
0
1
5
1
0
1
1
6
1
1
0
1
7
1
1
1
1
8
Memory
TRUTH TABLE
Logic “0” = VAL < 0.8V, Logic “1” = VAH > 2.4V
02.06.04 Rev 3
All data sheets are subject to change without notice
6
©2004 Maxwell Technologies
All rights reserved.
358
8-Channel Fault-Protected Analog Multiplexer
Memory
L
E3
16-PIN RAD-PAK® FLAT PACK PACKAGE
DIMENSIONS
SYMBOL
MIN
NOM
MAX
A
.115
.135
.150
b
.015
.017
.019
c
.004
.005
.007
D
0.407
.415
.423
E
.275
.280
.285
E1
--
--
0.500
E2
.150
.156
0.162
E3
.030
.062
--
e
.050 BSC
L
.325
.335
.345
Q
.020
.033
.045
S1
.005
.024
0.045
N
16
All dimensions in inches
02.06.04 Rev 3
All data sheets are subject to change without notice
7
©2004 Maxwell Technologies
All rights reserved.
8-Channel Fault-Protected Analog Multiplexer
358
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 Technologies. Maxwell Technologies’ liability shall be limited to replacement of defective parts.
Memory
02.06.04 Rev 3
All data sheets are subject to change without notice
8
©2004 Maxwell Technologies
All rights reserved.
358
8-Channel Fault-Protected Analog Multiplexer
Product Ordering Options
Model Number
358
RP
F
X
Option Details
Feature
Monolithic
S = Maxwell Class S
B = Maxwell Class B
I = Industrial (testing @ -55°C,
+25°C, +125°C)
E = Engineering (testing @ +25°C
Package
F = Flat Pack
Radiation Feature
RP = RAD-PAK® package
Base Product
Nomenclature
8-Channel Fault-Protected Analog Multiplexer
02.06.04 Rev 3
All data sheets are subject to change without notice
Memory
Screening Flow
9
©2004 Maxwell Technologies
All rights reserved.
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