DATASHEET
ISL71841SEH
Radiation Hardened 30V 32-Channel Analog Multiplexer
The
ISL71841SEH
is a radiation hardened, 32-channel high
ESD protected multiplexer fabricated using the Renesas
proprietary P6SOI (Silicon On Insulator) process technology to
mitigate single event effects. It operates with a dual supply
voltage ranging from ±10.8V to ±16.5V. It has a 5-bit address
plus an enable pin that can be driven with adjustable logic
thresholds to conveniently select one of 32 available channels.
An inactive channel is separated from an active channel by a
high impedance, which inhibits any interaction between them.
The ISL71841SEH’s low r
ON
allows for improved signal
integrity and reduced power losses. The ISL71841SEH is also
designed for cold sparing, making it excellent for high
reliability applications that have redundancy requirements. It
is designed to provide a high impedance to the analog source
in a powered off condition, making it easy to add additional
backup devices without loading signal sources. The
ISL71841SEH also incorporates input analog overvoltage
protection, which disables the switch to protect downstream
devices.
The ISL71841SEH is available in a 48 Ld CQFP, 44 Ld CLCC, or
die form and operates across the extended temperature range
of -55°C to +125°C.
A 16-channel version in a 28 Ld CDFP is also available. Refer
to the
ISL71840SEH
datasheet for more information. For a list
of differences between the ISL71841SEH and ISL71840SEH,
see
Table 1 on page 3.
FN8735
Rev. 7.00
Feb 23, 2018
Features
• DLA SMD #5962-15220
• Fabricated using P6SOI process technology
• Provides latch-up immunity
• ESD protection 8kV (HBM)
• Rail-to-rail operation
• Overvoltage protection
• Low r
ON
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <500Ω (typical)
• Flexible split rail operation
- Positive supply above GND (V+) . . . . . . . +10.8V to +16.5V
- Negative supply below GND (V-) . . . . . . . . -10.8V to -16.5V
• Adjustable logic threshold control with VREF pin
• Cold sparing capable (from ground). . . . . . . . . . . . . . . . .±25V
• Analog overvoltage range (from ground) . . . . . . . . . . . . .±35V
• Off switch leakage . . . . . . . . . . . . . . . . . . . 100nA (maximum)
• Transition times (t
R
, t
F
) . . . . . . . . . . . . . . . . . . . 500ns (typical)
• Break-before-make switching
• Grounded metal lid (internally connected)
• Operating temperature range. . . . . . . . . . . .-55°C to +125°C
• Radiation tolerance
- High dose rate (50-300rad(Si)/s). . . . . . . . . . . 100krad(Si)
- Low dose rate (0.01rad(Si)/s) . . . . . . 100krad(Si) (Note
1)
- SEB LET
TH
. . . . . . . . . . . . . . . . . . . . . . . . . 86.4MeV•cm
2
/mg
NOTE:
1. Product capability established by initial characterization. All
subsequent lots are assurance tested to 50krad (0.01rad(Si)/s)
wafer-by-wafer.
Related Literature
For a full list of related documents, visit our website
•
ISL71841SEH
product page
ISL71841SEH
600
IN01
IN02
500
OUT
ADC
.
.
.
IN32
r
DS(ON)
(Ω)
IN03
400
300
200
100
+25°C
+125°C
5
-55°C
0
-20
-15
-10 -5.0
0
5.0
10
SWITCH INPUT VOLTAGE (V)
15
20
ADDRESS
EN
FIGURE 1. TYPICAL APPLICATION
FIGURE 2. r
DS(ON)
vs POWER SUPPLY ACROSS SWITCH INPUT
COMMON-MODE VOLTAGE AT +25°C
FN8735 Rev. 7.00
Feb 23, 2018
Page 1 of 30
ISL71841SEH
Table of Contents
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Pin Configurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Pin Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Thermal Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Recommended Operating Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Electrical Specifications (±15V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Electrical Specifications (±12V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Timing Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Typical Performance Curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Post High Dose Rate Radiation Characteristics (V± = ±15V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Post High Dose Rate Radiation Characteristics (V± = ±12V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Post Low Dose Rate Radiation Characteristics (V± = ±15V). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Post Low Dose Rate Radiation Characteristics (V± = ±12V). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Applications Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power-Up Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overvoltage Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VREF and Logic Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Considerations for Redundant Applications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
24
24
24
24
24
ISL71841SEH vs ISL71840SEH. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Die Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Die Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Interface Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Assembly Related Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Additional Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Weight of Packaged Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lid Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
25
25
25
25
Metalization Mask Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Revision History. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Package Outline Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Ceramic Leadless Chip Carrier Packages (CLCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
FN8735 Rev. 7.00
Feb 23, 2018
Page 2 of 30
ISL71841SEH
Ordering Information
ORDERING NUMBER
(Note
4)
5962R1522001VXC
N/A
5962R1522001VYA
N/A
5962R1522001V9A
N/A
N/A
NOTES:
2. These Pb-free Hermetic packaged products employ 100% Au plate - e4 termination finish, which is RoHS compliant and compatible with both SnPb
and Pb-free soldering operations.
3. These Hermetic Packaged products are intended for SnPb soldering and may be shipped with terminations precoated with SnPb solder compatible
with SnPb soldering operations only.
4. Specifications for Rad Hard QML devices are controlled by the Defense Logistics Agency Land and Maritime (DLA). The SMD numbers listed must be
used when ordering.
5. The /PROTO and /SAMPLE are not rated or certified for Total Ionizing Dose (TID) or Single Event Effect (SEE) immunity. These parts are intended for
engineering evaluation purposes only. The /PROTO parts meet the electrical limits and conditions across the temperature range specified in the DLA
SMD and are in the same form and fit as the qualified device. The /SAMPLE die is capable of meeting the electrical limits and conditions specified
in the DLA SMD at +25°C only. The /SAMPLE is a die and does not receive 100% screening across the temperature range to the DLA SMD electrical
limits. These part types do not come with a certificate of conformance because there is no radiation assurance testing and they are not DLA qualified
devices.
6. Evaluation board uses the /PROTO parts. The /PROTO parts are not rated or certified for Total Ionizing Dose (TID) or Single Event Effect (SEE) immunity.
PART NUMBER
ISL71841SEHVF (Note
2)
ISL71841SEHF/PROTO (Notes
2, 5)
ISL71841SEHVL (Note
3)
ISL71841SEHL/PROTO (Notes
3, 5)
ISL71841SEHVX
ISL71841SEHX/SAMPLE (Note
5)
ISL71841SEHEV1Z (Note
6)
TEMP RANGE
(°C)
-55 to +125
-55 to +125
-55 to +125
-55 to +125
-55 to +125
-55 to +125
Evaluation Board
PACKAGE
48 LD CQFP (RoHS Compliant)
48 LD CQFP (RoHS Compliant)
44 LD CLCC
44 LD CLCC
Die (RoHS Compliant)
Die (RoHS Compliant)
PKG.
DWG. #
R48.A
R48.A
J44.A
J44.A
TABLE 1. TABLE OF DIFFERENCES
SPECIFICATION
Number of Channels
Supply Current (I+/I-)
Output Leakage (+125°C)
ISL71840SEH
16
350µA (maximum)
60nA (maximum)
ISL71841SEH
32
400µA (maximum)
120nA (maximum)
FN8735 Rev. 7.00
Feb 23, 2018
Page 3 of 30
ISL71841SEH
Pin Configurations
ISL71841SEH
(48 LD CQFP)
TOP VIEW
IN13
IN14
IN15
IN16
NC
OUT
NC
NC
IN32
IN31
IN30
IN29
ISL71841SEH
(44 LD CLCC)
TOP VIEW
IN15
IN14
IN16
IN32
IN31
OUT
IN30
IN12
IN13
IN29
IN28
39 IN27
38 IN26
37 IN25
36 IN24
35 IN23
34 IN22
33 IN21
32 IN20
31 IN19
30 IN18
29 IN17
18 19 20 21 22 23 24 25 26 27 28
V+
A0
A1
A2
A3
A4
EN
GND
VREF
NC
V-
6
IN12
IN11
IN10
IN9
IN8
IN7
IN6
IN5
IN4
IN3
IN2
IN1
7
8
9
10
11
12
13
14
15
16
17
6 5 4 3 2 1 48 47 46 45 44 43
42
41
40
39
38
37
5
4
3
2
1
44 43 42 41 40
IN11 7
IN28
IN27
IN26
IN25
IN24
IN23
IN22
IN21
IN20
IN19
IN18
IN17
IN10 8
IN9 9
IN8 10
IN7 11
IN6 12
IN5 13
IN4 14
IN3 15
IN2 16
IN1 17
36
35
34
33
32
31
18
19 20 21 22 23 24 25 26 27 28 29 30
VREF
GND
NC
NC
EN
V
+
A0
A1
A2
A3
Pin Descriptions
PIN NAME
NC
OUT
V
+
V
-
INx
PIN NUMBER
48 LD CQFP
2, 26, 27, 47, 48
1
19
30
PIN NUMBER
44 LD CLCC
28
1
18
27
DESCRIPTION
Not connected, no internal connection
Output for multiplexer (see Circuit 1 in
Figure 3)
Positive power supply (see Circuit 3 in
Figure 3)
Negative power supply (see Circuit 4 in
Figure 3)
3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, Inputs for multiplexer (see Circuit 2 in
Figure 3)
13, 14, 15, 16, 17, 29, 30, 31,
14, 15, 16, 17, 18,
31, 32, 33, 34, 35, 36, 37, 38, 32, 33, 34, 35, 36, 37, 38, 39,
40, 41, 42, 43, 44
39, 40, 41, 42, 43, 44, 45, 46
21, 22, 23, 24, 25
28
20
29
NA
20, 21, 22, 23, 24
25
19
26
NA
Address lines for multiplexer (see Circuit 3 in
Figure 3)
Enable control for multiplexer (active low, see Circuit 3 in
Figure 3)
Reference voltage used to set logic thresholds (see Circuit 3 in
Figure 3)
Ground
Package lid is internally connected to GND (Pin 29 on CQFP, Pin 26
on CLCC)
Ax
EN
VREF
GND
LID
V+
A4
20V
PIN
20V
±20V
V-
GND
GND
GND
GND
±40V
20V
20V
PIN
PIN
PIN
CIRCUIT 1
V
-
CIRCUIT 2
CIRCUIT 3
CIRCUIT 4
FIGURE 3. ESD Circuits
FN8735 Rev. 7.00
Feb 23, 2018
Page 4 of 30
ISL71841SEH
Absolute Maximum Ratings
Positive Supply Voltage above GND (V
+
) (Note
9).
. . . . . . . . . . . . . . . . +20V
Negative Supply Voltage below GND (V
-
) (Note
9)
. . . . . . . . . . . . . . . . .-20V
Maximum Supply Voltage Differential (V
+
to V
-
) (Note
9)
. . . . . . . . . . . 40V
Analog Input Voltage (INx)
From GND (Note
9)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±35V
Digital Input Voltage Range (EN, Ax) . . . . . . . . . . . . . . . . . . . . . . . . GND to V
+
VREF to GND (Note
9)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16.5V
ESD Tolerance
Human Body Model (Tested per MIL-STD-883 TM 3015) . . . . . . . . . 8kV
Charged Device Model (Tested per JESD22-C101D) . . . . . . . . . . . . 250V
Machine Model (Tested per JESD22-A115-A) . . . . . . . . . . . . . . . . . . 250V
Thermal Information
Thermal Resistance (Typical)
JA
(°C/W)
JC
(°C/W)
48 Ld CQFP (Notes
7, 8)
. . . . . . . . . . . . . . .
50
2
44 Ld CLCC (Notes
7, 8).
. . . . . . . . . . . . . . .
31
3
Storage Temperature Range. . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Recommended Operating Conditions
Ambient Operating Temperature Range . . . . . . . . . . . . . .-55°C to +125°C
Maximum Operating Junction Temperature . . . . . . . . . . . . . . . . . .+150°C
Positive Supply Voltage Above GND (V
+
) . . . . . . . . . . . . . +10.8V to +16.5V
Negative Supply Voltage Below GND (V
-
) . . . . . . . . . . . . . . .-10.8V to -16.5V
Supply Voltage Differential (V
+
to V
-
) . . . . . . . . . . . . . . . . . . . . 21.6V to 33V
VREF to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.5V to 5.5V
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product
reliability and result in failures not covered by warranty.
NOTES:
7.
JA
is measured with the component mounted on a high-effective thermal conductivity test board in free air. Refer to
TB379
for details.
8. For
JC
, the “case temp” location is the center of the package underside.
9. Tested in a heavy ion environment at LET = 86.3MeV•cm
2
/mg at +125°C.
V
+
= 15V, V
-
= -15V, V
AH
= 4.0V, V
AL
= 0.8V, V
REF
= V
EN
= 5.0V, T
A
= +25°C, unless otherwise noted.
Boldface limits apply across the operating temperature range,
-55°C to +125°C or across a total ionizing dose of 300krad(Si) with exposure of a high
dose rate of 50 to 300krad(Si)/s or a total ionizing dose of 50krad(Si) with exposure at a low dose rate of <10mrad(Si)/s
.
PARAMETER
Analog Input Signal Range
Channel ON-Resistance
SYMBOL
V
S
r
ON
V± = ±15.0V, ±16.5V
I
OUT
= -1mA, V
IN
= +5V, -5V
V± = ±15.0V, ±16.5V
I
OUT
= -1mA, V
IN
= V
+
, V
-
r
ON
Match Between Channels
ON-Resistance Flatness
Switch Off Leakage
Δr
ON
R
FLAT(ON)
I
S(OFF)
V
IN
= +5V, -5V; I
OUT
= -1mA
V
IN
= +5V, -5V
V
IN
= V
+
- 5V, V± = ±16.5V
All unused inputs are tied to V
-
+ 5V
Post radiation
V
IN
= V
-
+ 5V, V± = ±16.5V
All other inputs = V
+
- 5V
T
A
= +25°C, -55°C
T
A
= +125°C
Post radiation
Switch Off Leakage with Device
Powered Off
I
S(OFF) POWER OFF
V
IN
= +25V, V± = V
EN
= V
A
= V
REF
= 0V
T
A
= +25°C, V± = 0V
T
A
= -55°C, +125°C
Post radiation
V
IN
= -25V, V± = V
EN
= V
A
= V
REF
= 0V
T
A
= +25°C, V± = 0V
T
A
= -55°C, +125°C
Post radiation
TEST CONDITIONS
MIN
(Note
10)
V
-
-
-
-
-
-10
-100
-10
TYP
-
-
-
10
-
-
-
-
MAX
(Note
10)
V
+
500
700
20
25
10
100
10
UNIT
V
Ω
Ω
Ω
Ω
nA
nA
nA
Electrical Specifications (±15V)
-20
-100
-10
-10
-100
-10
-80
-100
-
-
-
-
-
-
-
-
20
100
10
80
100
10
10
100
nA
nA
nA
nA
nA
nA
nA
nA
FN8735 Rev. 7.00
Feb 23, 2018
Page 5 of 30
