IL711/IL712/IL721
IsoLoop is a registered trademark of NVE Corporation.
*U.S. Patent numbers 5,831,426; 6,300,617 and others.
Rev. AN
NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 (952) 829-9217 www.nve.com YouTube.com/NveCorporation iso-apps@nve.com
High Speed Two-Channel Digital Isolators
Functional Diagrams
IL711
IL712
IN1
IN2
OUT1
OUT2
OUT1
IN2
OUT2
IN1
IL721
IN1
OUT2
IN2
OUT1
Features
• High speed: 150 Mbps typical (S-Series)
• High temperature: −40 °C to +125 °C (T-Series and V-Series)
• Very high isolation: 6 kV
RMS
Reinforced Isolation (V-Series)
• 2.7 to 5.5 volt supply range
• 100 kV/μs Common Mode Transient Immunity
• No carrier or clock for low EMI emissions and susceptibility
• 1.2 mA/channel typical quiescent current
• 300 ps typical pulse width distortion (S-Series)
• 100 ps pulse jitter
• 2 ns channel-to-channel skew
• 10 ns typical propagation delay
• 44000 year barrier life
• Excellent magnetic immunity
• VDE V 0884 certified; UL 1577 recognized
• 500 V
RMS
IS-to-IS intrinsically safe
• MSOP, SOIC, PDIP, and True 8 mm creepage packages
Applications
•
Board-to-board communication
•
CANbus
•
Peripheral interfaces
•
Logic level shifting
•
Equipment covered under IEC 61010-1 Edition 3
•
5 kV
RMS
rated IEC 60601-1 medical applications
Description
NVE’s IL700 family of high
-speed digital isolators are CMOS devices
manufactured with NVE’s patented* IsoLoop
®
spintronic Giant
Magnetoresistive (GMR) technology. A unique ceramic/polymer
composite barrier provides excellent isolation and virtually unlimited
barrier life.
The IL711S and IL712S are the world’s fastest two-
channel isolators, with
a 150 Mbps typical data rate for both channels. Standard and S-
Grade parts
are specified over a temperature range of −40°C to +100°C; “T” and “V”
Grade parts have a maximum operating temperature of 125°C. V- Grade
versions offer extremely high isolation voltages of 6 kV
RMS
for wide-body
packages and 2.5 kV
RMS
for MSOPs.
The symmetric magnetic coupling barrier provides a typical propagation
delay of only 10 ns and a pulse width distortion as low as 300 ps (0.3 ns),
achieving the best specifications of any isolator. Minimum transient
immunity of 100 kV/µs is unsurpassed.
The IL711 has two transmit channels; the IL712 and IL721 have one
transmit and one receive channel. The IL721 has channels reversed to
better suit certain board layouts.
The IL711 and IL712 are available in 8-pin MSOP, SOIC, and PDIP
packages. The IL711 and IL721 are also available in NVE’s unique
JEDEC-compliant 16 pin package with True 8 mm creepage under
IEC 60601.
IL711/IL712/IL721
2
NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 (952) 829-9217 www.nve.com YouTube.com/NveCorporation iso-apps@nve.com
Absolute Maximum Ratings
Parameters
Symbol Min. Typ. Max. Units Test Conditions
Storage Temperature T
S
−55 150 °C
Junction Temperature T
J
−55 150 °C
Ambient Operating Temperature
(1)
T
A
−55 130 °C
Supply Voltage V
DD
1
, V
DD
2
−0.5 7 V
Input Voltage V
I
−0.5 V
DD
+ 0.5 V
Output Voltage V
O
−0.5 V
DD
+ 0.5 V
Output Current Drive I
O
10 mA
Lead Solder Temperature 260 °C 10 sec.
ESD 2 kV HBM
Recommended Operating Conditions
Parameters
Symbol Min. Typ. Max. Units Test Conditions
Ambient Operating Temperature
IL711/IL712/IL721/IL711S/IL712S
IL711T/IL711VE/IL712T/IL721T/IL721VE
T
A
−40
100
125
°C
°C
Junction Temperature
IL711/IL712/IL721/IL711S/IL712S
IL711T/IL711VE/IL712T/IL721T/IL721VE
T
J
−40
110
125
°C
°C
Supply Voltage V
DD
1
, V
DD
2
2.7 5.5 V
Logic High Input Voltage V
IH
2.4 V
DD
V
Logic Low Input Voltage V
IL
0 0.8 V
Input Signal Rise and Fall Times t
IR
, t
IF
1 μs
IL711/IL712/IL721
3
NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 (952) 829-9217 www.nve.com YouTube.com/NveCorporation iso-apps@nve.com
Safety and Approvals
VDE V 0884-10 (VDE V 0884-11 pending)
VE versions (0.3" SOIC Reinforced Isolation; VDE File Number 5016933-4880-0002)
• Working Voltage (V
IORM
) 1000 V
RMS
(1415 V
PK
); reinforced insulation; pollution degree 2
• Isolation voltage (V
ISO
) 6000 V
RMS
• Surge immunity (V
IOSM
) 12.8 kV
PK
• Surge rating 8 kV
• Transient overvoltage (V
IOTM
) 6000 V
PK
• Each part tested at 2387 V
PK
for 1 second, 5 pC partial discharge limit
• Samples tested at 6000 V
PK
for 60 sec.; then 2122 V
PK
for 10 sec. with 5 pC partial discharge limit
Standard versions (Basic Isolation; VDE File Number 5016933-4880-0001)
• Working Voltage (V
IORM
) 600 V
RMS
(848 V
PK
); basic insulation; pollution degree 2
• Isolation voltage (V
ISO
) 2500 V
RMS
• Transient overvoltage (V
IOTM
) 4000 V
PK
• Surge rating 4000 V
• Each part tested at 1590 V
PK
for 1 second, 5 pC partial discharge limit
• Samples tested at 4000 V
PK
for 60 sec.; then 1358 V
PK
for 10 sec. with 5 pC partial discharge limit
Safety-Limiting Values
Symbol Value Units
Safety rating ambient temperature T
S
180 °C
Safety rating power (180°C) P
S
270 mW
Supply current safety rating (total of supplies) I
S
54 mA
IEC 61010-1 (Edition 2; TUV Certificate Numbers N1502812; N1502812-101)
Reinforced Insulation; Pollution Degree II; Material Group III
Part No.
Suffix Package
Working
Voltage
-1 MSOP (standard) 150 V
RMS
V-1 MSOP (high isolation voltage) 300 V
RMS
-2 PDIP 300 V
RMS
-3 SOIC 150 V
RMS
None 0.3" SOIC (standard) 300 V
RMS
VE 0.3" SOIC (high isolation voltage) 1000 V
RMS
UL 1577 (Component Recognition Program File Number E207481)
• 1 kV-rated standard MSOPs tested at 1200 V
RMS
(1768 V
PK
) for 1 second; each lot sample tested at 1200 V
RMS
(1768 V
PK
) for 1 minute
• 2.5 kV-rated parts tested at 3000 V
RMS
(4240 V
PK
) for 1 second; each lot sample tested at 2500 V
RMS
(3530 V
PK
) for 1 minute
• 6 kV-rated VE-version parts tested at 7.2 kV
RMS
(10.2 kV
PK
) for 1 second; each lot sample tested at 6 kV
RMS
(8485 V
PK
) for 1 minute
ATEC / IEC 60079-0 / 60079-11 (Intrinsic Safety under Explosive Atmosphere Standards)
• IS-to-IS Certification pending
• 500 V
RMS
rating
Soldering Profile
Per JEDEC J-STD-020C, MSL 1
IL711/IL712/IL721
4
NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 (952) 829-9217 www.nve.com YouTube.com/NveCorporation iso-apps@nve.com
IL711-1, -2, and -3 Pin Connections
1 V
DD1
Supply voltage
2 IN
1
Data in, channel 1
3 IN
2
Data in, channel 2
4 GND
1
Ground return for V
DD1
5 GND
2
Ground return for V
DD2
6 OUT
2
Data out, channel 2
7 OUT
1
Data out, channel 1
8 V
DD2
Supply voltage
1
2
3
4 5
6
7
8
IN1
IN2
VDD1
GND1
OUT2
OUT1
VDD2
GND2
IL711-1, -2, and -3
IL711 Pin Connections
1
2 GND
1
Ground return for V
DD1
(pins 1, 2, 7, and 8 internally connected)
3 V
DD1
Supply voltage
4 IN
1
Data in, channel 1
5 IN
2
Data in, channel 2
6 NC No connection
7
8 GND
1
Ground return for V
DD1
(pins 1, 2, 7, and 8 internally connected)
9
10 GND
2
Ground return for V
DD2
(pins 9, 10, 15, and 16 internally connected)
11 NC No connection
12 OUT
2
Data out, channel 2
13 OUT
1
Data out, channel 1
14 V
DD2
Supply voltage
15
16 GND
2
Ground return for V
DD2
(pins 9, 10, 15, and 16 internally connected)
GND1
GND1GND2
IN1
OUT2
VDD2
VDD1
OUT1
GND2
GND2
GND1GND2
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
GND1
NC
IN2
NC
IL711
IL712-1, -2, and -3 Pin Connections
1 V
DD1
Supply voltage
2 IN
1
Data in, channel 1
3 OUT
2
Data out, channel 2
4 GND
1
Ground return for V
DD1
5 GND
2
Ground return for V
DD2
6 IN
2
Data in, channel 2
7 OUT
1
Data out, channel 1
8 V
DD2
Supply voltage
IN1
IN2
VDD1
GND1
OUT2
OUT1
VDD2
GND2
IL712-1, -2, and -3
IL721-3 Pin Connections
1 V
DD1
Supply voltage
2 OUT
1
Data out, channel 1
3 IN
2
Data in, channel 2
4 GND
1
Ground return for V
DD1
5 GND
2
Ground return for V
DD2
6 OUT
2
Data out, channel 2
7 IN
1
Data in, channel 1
8 V
DD2
Supply voltage
OUT1
OUT2
VDD1
GND1
IN2
IN1
VDD2
GND2
IL721-3
IL711/IL712/IL721
5
NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 (952) 829-9217 www.nve.com YouTube.com/NveCorporation iso-apps@nve.com
IL721 Pin Connections
1
2 GND
1
Ground return for V
DD1
(pins 1, 2, 7, and 8 internally connected)
3 V
DD1
Supply voltage
4 OUT
1
Data out, channel 1
5 IN
2
Data in, channel 2
6 NC No connection
7
8 GND
1
Ground return for V
DD1
(pins 1, 2, 7, and 8 internally connected)
9
10 GND
2
Ground return for V
DD2
(pins 9, 10, 15, and 16 internally connected)
11 NC No connection
12 OUT
2
Data out, channel 2
13 IN
1
Data in, channel 1
14 V
DD2
Supply voltage
15
16 GND
2
Ground return for V
DD2
(pins 9, 10, 15, and 16 internally connected)
GND1
GND1GND2
OUT1
OUT2
VDD2
VDD1
IN1
GND2
GND2
GND1GND2
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
GND1
NC
IN2
NC
IL721
IL711/IL712/IL721
6
NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 (952) 829-9217 www.nve.com YouTube.com/NveCorporation iso-apps@nve.com
3.3 Volt Electrical Specifications
(T
min
to T
max
unless otherwise stated)
Parameters
Symbol Min. Typ. Max. Units Test Conditions
Input Quiescent Supply Current
IL711 I
DD1
8 10 μA
IL712/IL721 1.2 1.75 mA
Output Quiescent Supply Current
IL711 I
DD2
2.4 3.5 mA
IL712/IL721 1.2 1.75 mA
Logic Input Current I
I
−10 10
μA
Logic High Output Voltage
V
OH
V
DD
– 0.1 V
DD
V I
O
= −20 μA, V
I
= V
IH
0.8 x V
DD
0.9 x V
DD
I
O
= −4 mA, V
I
= V
IH
Logic Low Output Voltage V
OL
0 0.1 V I
O
= 20 μA, V
I
= V
IL
0.5 0.8 I
O
= 4 mA, V
I
= V
IL
Switching Specifications
(V
DD
= 3.3 V)
Maximum Data Rate
IL711/IL712/IL721
IL711S/IL712S
IL711T/IL712T/IL721T
100
130
100
110
140
110
Mbps
Mbps
Mbps
C
L
= 15 pF
C
L
= 15 pF
C
L
= 15 pF
Pulse Width
(7)
PW 10 7.5 ns 50% Points, V
O
Propagation Delay Input to Output
(High to Low) t
PHL
12 18 ns C
L
= 15 pF
Propagation Delay Input to Output
(Low to High) t
PLH
12 18 ns C
L
= 15 pF
Pulse Width Distortion
(2)
IL711/IL712/IL721
IL711S/IL712S
IL711T/IL712T/IL721T
PWD
2
2
1
3
3
3
ns
ns
ns
C
L
= 15 pF
C
L
= 15 pF
C
L
= 15 pF
Propagation Delay difference
between any two parts
(3)
t
PSK
4 6 ns C
L
= 15 pF
Output Rise Time (10%–90%) t
R
2 4 ns C
L
= 15 pF
Output Fall Time (10%–90%) t
F
2 4 ns C
L
= 15 pF
Common Mode Transient Immunity
(Output Logic High or Logic Low)
(4)
|CM
H
|,|CM
L
| 100 150 kV/µs Per IEC 60747
Channel-to-Channel Skew t
CSK
2 3 ns C
L
= 15 pF
Dynamic Power Consumption
(6)
Output side 140 240 μA/Mbps/ch
Input side 20 40
Magnetic Field Immunity
(8)
(V
DD2
= 3.3 V, 2.7 V < V
DD1
< 5.5 V)
Power Frequency Magnetic Immunity H
PF
1500 A/m 50Hz/60Hz
Pulse Magnetic Field Immunity H
PM
2000 A/m t
p
= 8 µs
Damped Oscillatory Magnetic Field H
OSC
2000 A/m 0.1Hz – 1MHz
Cross-axis Immunity Multiplier
(9)
K
X
2.5
Timing Diagram
Legend
t
PLH
Propagation Delay, Low to High
t
PHL
Propagation Delay, High to Low
t
PW
Minimum Pulse Width
t
R
Rise Time
t
F
Fall Time
IL711/IL712/IL721
7
NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 (952) 829-9217 www.nve.com YouTube.com/NveCorporation iso-apps@nve.com
5 Volt Electrical Specifications
(T
min
to T
max
unless otherwise stated)
Parameters
Symbol Min. Typ. Max. Units Test Conditions
Input Quiescent Supply Current
IL711 I
DD1
10 15 μA
IL712/IL721 1.8 2.5 mA
Output Quiescent Supply Current
IL711 I
DD2
3.6 5 mA
IL712/IL721 1.8 2.5 mA
Logic Input Current I
I
−10 10
μA
Logic High Output Voltage
V
OH
V
DD
− 0.1 V
DD
V I
O
= −20 μA, V
I
= V
IH
0.8 x V
DD
0.9 x V
DD
I
O
= −4 mA, V
I
= V
IH
Logic Low Output Voltage V
OL
0 0.1 V I
O
= 20 μA, V
I
= V
IL
0.5 0.8 I
O
= 4 mA, V
I
= V
IL
Switching Spec
ifications
(V
DD
= 5 V)
Maximum Data Rate
IL711/IL712/IL721
IL711S/IL712S
IL711T/IL712T/IL721T
100
130
100
110
150
110
Mbps
Mbps
Mbps
C
L
= 15 pF
C
L
= 15 pF
C
L
= 15 pF
Pulse Width
(7)
PW 10 7.5 ns 50% Points, V
O
Propagation Delay Input to Output
(High to Low) t
PHL
10 15 ns C
L
= 15 pF
Propagation Delay Input to Output
(Low to High) t
PLH
10 15 ns C
L
= 15 pF
Pulse Width Distortion
(2)
IL711/IL712/IL721
IL711S/IL712S
IL711T/IL712T/IL721T
PWD
2
2
0.3
3
3
3
ns
ns
ns
C
L
= 15 pF
C
L
= 15 pF
C
L
= 15 pF
Pulse Jitter
(10)
t
J
100 ps C
L
= 15 pF
Propagation Delay difference
between any two parts
(3)
t
PSK
4 6 ns C
L
= 15 pF
Output Rise Time (10%–90%) t
R
1 3 ns C
L
= 15 pF
Output Fall Time (10%–90%) t
F
1 3 ns C
L
= 15 pF
Common Mode Transient Immunity
(Output Logic High or Logic Low)
(4)
|CM
H
|,|CM
L
| 100 150 kV/µs Per IEC 60747
Channel to Channel Skew t
CSK
2 3 ns C
L
= 15 pF
Dynamic Power Consumption
(6)
Output side 200 340 μA/Mbps/ch
Input side 30 50
Magnetic Field Immunity
(8)
(V
DD2
= 5 V, 2.7 V < V
DD1
< 5.5 V)
Power Frequency Magnetic Immunity H
PF
3500 A/m 50Hz/60Hz
Pulse Magnetic Field Immunity H
PM
4500 A/m t
p
= 8 µs
Damped Oscillatory Magnetic Field H
OSC
4500 A/m 0.1Hz – 1MHz
Cross-axis Immunity Multiplier
(9)
K
X
2.5
IL711/IL712/IL721
8
NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 (952) 829-9217 www.nve.com YouTube.com/NveCorporation iso-apps@nve.com
Insulation Specifications
Parameter
Symbol Min. Typ. Max. Units Test Conditions
Creepage Distance (external)
MSOP8 3.01 mm
SOIC8 4.03 mm
PDIP8 6.8 mm
True 8™ 0.3" SOIC16 8.03 8.3 mm Per IEC 60601
Total Barrier Thickness (internal) 0.012 0.016 mm
Leakage Current
(5)
0.2 μA 240 V
RMS
, 60 Hz
Barrier Resistance
(5)
R
IO
>10
14
Ω
500 V
Barrier Capacitance
(5)
C
IO
2 pF f = 1 MHz
Comparative Tracking Index CTI ≥600 V
RMS
Per IEC 60112
High Voltage Endurance
(Maximum Barrier Voltage
for Indefinite Life)
AC
DC
V
IO
1000
1500
V
RMS
V
DC
At maximum
operating temperature
Surge Immunity (“VE” Versions) V
IOSM
12.8 kV
PK
Per IEC 61000-4-5
Barrier Life 44000 Years
100°C, 1000 V
RMS
,
60% CL activation
energy
Thermal Characteristics
Parameter Symbol Min. Typ. Max. Units Test Conditions
Junction–Ambient
Thermal Resistance
MSOP8
0.15" SOIC8
0.3" SOIC16
PDIP8
θ
JA
184
134
67
114
°C/W
Double-sided PCB in
free air
Junction–Case (Top)
Thermal Resistance
MSOP8
0.15" SOIC8
0.3" SOIC16
PDIP8
θ
JC
15
10
12
36
Junction–Ambient
Thermal Resistance 0.3" SOIC
θ
JA
46 2s2p PCB in free air
per JESD51
Junction–Case (Top)
Thermal Resistance θ
JC
9
Power Dissipation
MSOP8
0.15" SOIC8
0.3" SOIC16
PDIP8
P
D
500
675
1500
800
mW
Notes (apply to both 3.3 V and 5 V specifications):
1. Absolute maximum ambient operating temperature means the device will not be damaged if operated under these conditions. It does not
guarantee performance.
2. PWD is defined as |t
PHL
− t
PLH
|. %PWD is equal to PWD divided by pulse width.
3. t
PSK
is the magnitude of the worst-case difference in t
PHL
and/or t
PLH
between devices at 25°C.
4. CM
H
and CM
L
are the maximum common mode voltage slew rates that can be applied with the outputs remaining stable and within V
OL
and
V
OH
specifications.
5. Device is considered a two terminal device: pins 1–4 shorted and pins 5–8 shorted.
6. Dynamic power consumption is calculated per channel.
7. Minimum pulse width is the minimum value at which specified PWD is guaranteed.
8. The relevant test and measurement methods are given in the Electromagnetic Compatibility section on p. 9.
9.
External magnetic field immunity is improved by this factor if the field direction is “end-to-end” rather than to “pin-to-pin” (see diagram on p. 9).
10. 64k-bit pseudo-random binary signal (PRBS) NRZ bit pattern with no more than five consecutive 1s or 0s; 800 ps transition time.
IL711/IL712/IL721
9
NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 (952) 829-9217 www.nve.com YouTube.com/NveCorporation iso-apps@nve.com
Typical Performance Graphs
0
5
25
30
35
0 25 50 75 100 125 150
OperatingSpeed (Mbps)
20
I(mA /channel)
DD
10
15
V = 3.3 V
DD
V =5V
DD
Figure 1. Supply current (per channel) vs. operating speed.
0
0.2
0.6
0.8
1
0510152025
I(mA)
OH
V -V
DD OH
0.4
V =5V
DD
V =3.3V
DD
Figure 2. Typical high output voltage vs. load.
0
0.2
0.6
0.8
1
0510152025
I(mA)
OH
VOL
0.4
V = 5 V
DD
V =3.3V
DD
Figure 3. Typical low output voltage vs. load
IL711/IL712/IL721
10
NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 (952) 829-9217 www.nve.com YouTube.com/NveCorporation iso-apps@nve.com
Application Information
Isolator Operation
An equivalent circuit is shown below:
Data
In
Data
Out
Isolation Barrier
Field
Figure 4. IL711 / IL712 / IL721 equivalent circuit (each channel).
Isolator Signal Path
The GMR isolator signal path starts with a buffered input signal that is driven through an ultraminiature coil. This generates a small magnetic
field that changes the electron spin polarization of GMR resistors, which are configured as a Wheatstone bridge. The change in spin polarization
of the resistors creates a bridge voltage which drives an output comparator to construct an isolated version of the input signal.
Small Size, High Speed, and Low EMI
The coil, GMR, and circuitry are integrated to allow small packages. GMR is inherently high speed and low distortion, and unlike transformers,
does not rely on energy transfer, so power is low and EMI emissions are minimal.
High Magnetic Immunity
GMR provides large signals which improve magnetic immunity, and the Wheatstone bridge configuration cancels ambient common-mode
magnetic fields, further enhancing immunity to external magnetic fields.
IL711/IL712/IL721
11
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80 ns
Electrostatic Discharge Sensitivity
This product has been tested for electrostatic sensitivity to the
limits stated in the specifications. However, NVE recommends that
all integrated circuits be handled with appropriate care to avoid
damage. Damage caused by inappropriate handling or storage could
range from performance degradation to complete failure.
Electromagnetic Compatibility
IsoLoop Isolators have the lowest EMC footprint of any isolation
technology. IsoLoop Isolators’ Wheatstone bridge configuration
and differential magnetic field signaling ensure excellent EMC
performance against all relevant standards.
These isolators are fully compliant with IEC 61000-6-1 and
IEC 61000-6-2 standards for immunity, and IEC 61000-6-3,
IEC 61000-6-4, CISPR, and FCC Class A standards for emissions.
Immunity to external magnetic fields is even higher if the field
direction is “end-to-end” rather than to “pin-to-pin” as shown in the
diagram below:
Cross-axis Field Direction
Dynamic Power Consumption
IsoLoop Isolators achieve their low power consumption from the
way they transmit data across the isolation barrier. By detecting the
edge transitions of the input logic signal and converting these to
narrow current pulses, a magnetic field is created around the GMR
Wheatstone bridge. Depending on the direction of the magnetic
field, the bridge causes the output comparator to switch following
the input logic signal. Since the current pulses are narrow, about
2.5 ns, the power consumption is independent of mark-to-space
ratio and solely dependent on frequency. This has obvious
advantages over optocouplers, which have power consumption
heavily dependent on mark-to-space ratio.
Power Supply Decoupling
Both power supplies should be decoupled with 0.1 µF typical
(0.047 µF minimum) capacitors as close as possible to the V
DD
pins. Ground planes for both GND
1
and GND
2
are highly
recommended for data rates above 10 Mbps.
Maintaining Creepage
Creepage distances are often critical in isolated circuits. In addition to
meeting JEDEC standards, NVE isolator packages have unique creepage
specifications. Standard pad libraries often extend under the package,
compromising creepage and clearance. Similarly, ground planes, if used,
should be spaced to avoid compromising clearance. Package drawings
and recommended pad layouts are included in this datasheet.
Signal Status on Start-up and Shut Down
To minimize power dissipation, input signals are differentiated and
then latched on the output side of the isolation barrier to reconstruct
the signal. This could result in an ambiguous output state depending
on power up, shutdown and power loss sequencing. Unless the circuit
connected to the isolator performs its own power- on reset (POR), a
start-up initialization circuit should be considered. Initialization
consists of toggling the input either high then low, or low then high.
In CAN applications, the IL712 or IL721 should be used with CAN
transceivers with Dominant Timeout
functions for seamless POR. Most
CAN transceivers have Dominant Timeout options. Examples include
NXP’s TJA 1050 and TJA 1040 transceivers.
Data Transmission Rates
The reliability of a transmission system is directly related to the
accuracy and quality of the transmitted digital information. For a digital
system, those parameters which determine the limits of the data
transmission are pulse width distortion and propagation delay skew.
Propagation delay is the time taken for the signal to travel through
the device. This is usually different when sending a low-to-high
than when sending a high-to-low signal. This difference, or error, is
called pulse width distortion (PWD) and is usually in nanoseconds.
It may also be expressed as a percentage:
PWD% = Maximum Pulse Width Distortion (ns) x 100%
Signal Pulse Width (ns)
For example, with data rates of 12.5 Mbps:
PWD% = 3 ns x 100% = 3.75%
This figure is almost three times better than any available
optocoupler with the same temperature range, and two times better
than any optocoupler regardless of published temperature range.
IsoLoop isolators exceed the 10% maximum PWD recommended
by PROFIBUS, and will run to nearly 35 Mb within the 10% limit.
Propagation delay skew is the signal propagation difference between two
or more channels. This becomes significant in clocked systems because it
is undesirable for the clock pulse to arrive before the data has settled.
Propagation delay skew is especially critical in high data rate parallel
systems for establishing and maintaining accuracy and repeatability.
Worst-case channel-to-channel skew in an IL700 Isolator is just 3 ns—
ten times better than any optocoupler. IL700 Isolators have a maximum
propagation delay skew of 6 ns— five times better than any optocoupler.
IL711/IL712/IL721
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Illustrative Applications
NVE offers a unique line of single-chip isolated RS-485, PROFIBUS, and CAN transceivers, but as illustrated in the circuits below, IL700-Series
Isolators can also be used as part of multi-chip designs with non-isolated transceivers:
IL710
IL711
ISL8485
5
6
7
8
4
3
2
1
1
2
3
4
8
7
6
5
1
5
6
7
2
8
3
4
Isolation
Boundary
Figure 1. Isolated PROFIBUS / RS-485 circuit.
IL712/IL721
TxD
RxD
CANH
CANL
Tx0
Rx0
7
6
2
1
4
3
1
2
3
4
8
7
6
5
2
DD2
AMIS-30660/
TJA1050
CAN
Controller
Figure 2. Isolated CAN circuit.
CAN isolation is increasingly necessary to reduce EMI susceptibility, especially in high- speed applications and in hybrid and electrical vehicle
networks, where the 12 V battery has been replaced with one of several hundred volts. Operator and equipment safety becomes critical when a
high voltage source, such as the battery, needs to be connected to diagnosis systems during routine maintenance procedures. In the application
shown above, the microcontroller is isolated from the CAN transceiver by an IL712 or IL721, allowing higher speed and more reliable bus
operation by eliminating ground loops and reducing susceptibility to noise and EMI events. The best-in-class 10 ns typical IL712/IL721
propagation delay minimizes CAN loop delay and maximizes data rate over any given bus length. This simple circuit works with any CAN
transceiver with a TxD dominant timeout, which includes all of the current-generation transceivers.
RS-485 Truth Table
D DE A B R
1 0 Z Z X
0 0 Z Z X
1 1 1 0 1
0 1 0 1 0
IL711/IL712/IL721
13
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Package Drawings
8-pin MSOP (-1 suffix)
0.114 (2.90)
0.114 (2.90)
0.016 (0.40)
0.005 (0.13)
0.009 (0.23)
0.027 (0.70)
0.010 (0.25)
0.002 (0.05)
0.043 (1.10)
0.032 (0.80)
0.006 (0.15)
0.016 (0.40)
0.189 (4.80)
0.197 (5.00)
0.122 (3.10)
0.122 (3.10)
Dimensions in inches (mm); scale = approx. 5X
0.024 (0.60)
0.028 (0.70)
NOTE: Pin spacing is a BASIC
dimension; tolerances
do not accumulate
8-pin SOIC Package (-3 suffix)
0.188 (4.77)
0.197 (5.00)
0.050 (1.27) 0.004 (0.1)
0.012 (0.3)
NOTE: Pin spacing is a BASIC
dimension; tolerances
do not accumulate
0.054 (1.37)
0.072 (1.83)
0.228 (5.8)
0.244 (6.2)
0.150 (3.8)
0.157 (4.0)
0.052 (1.32)
0.062 (1.57)
0.013 (0.3)
0.020 (0.5)
0.007 (0.2)
0.013 (0.3)
0.016 (0.4)
0.050 (1.3)
NOM
Dimensions in inches (mm); scale = approx. 5X
8-pin PDIP (-2 suffix)
0.28 (7.1)
0.33 (8.4)
0.30 (7.6)
0.38 (9.7)
0.008 (0.2)
0.015 (0.4)
Dimensions in inches (mm); scale = approx. 2.5X
0.345 (8.76)
0.40 (10.2)
0.27 (6.9)
0.24 (6.1)
0
10
0.055 (1.40)
0.065 (1.65)
0.030 (0.76)
0.045 (1.14)
0.014 (0.36)
0.045 (1.14)
0.070 (1.78)
0.09 (2.3)
0.11 (2.8)
0.015 (0.38)
0.040 (1.02)
0.13 (3.30)
0.17 (4.32)
0.023 (0.58)
NOTE:
Pin spacing is a BASIC
dimension; tolerances
do not accumulate
IL711/IL712/IL721
14
NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 (952) 829-9217 www.nve.com YouTube.com/NveCorporation iso-apps@nve.com
True 8™ (8 mm creepage) 16-pin SOIC Package (no suffix)
0.049 (1.24)
0.051 (1.30)
0.017 (0.43)*
0.022 (0.56)
0.292 (7.42)*
0.299 (7.59)
0.007 (0.18)*
0.010 (0.25)
0.260 (6.60)*
0.280 (7.11)
0.033 (0.85)*
0.043 (1.10)
0.007 (0.2)
0.013 (0.3)
Pin 1 identified by
either an indent
or a marked dot 0.08 (2.0)
0.10 (2.5)
0.397 (10.08)
0.413 (10.49)
0.394 (10.00)
0.419 (10.64)
0.092 (2.34)
0.105 (2.67)
0.004 (0.1)
0.012 (0.3)
0.016 (0.4)
0.050 (1.3)
NOTE: Pin spacing is a BASIC
dimension; tolerances
do not accumulate
0.013 (0.3)
0.020 (0.5)
Dimensions in inches (mm); scale = approx. 5X
*Specified for True 8™ package to guarantee 8 mm creepage per IEC 60601.
IL711/IL712/IL721
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Recommended Pad Layouts
8-pin MSOP Pad Layout
0.025 (0.65)
0.227 (5.77)
0.017 (0.43)
8 PLCS
0.120
(3.05)
Dimensions in inches (mm); scale = approx. 5X
8-pin SOIC Pad Layout
0.275 (6.99)
0.050 (1.27)
0.020 (0.51)
8 PLCS
Dimensions in inches (mm); scale = approx. 5X
0.160 (4.05)
True 8™ 16-pin SOIC Pad Layout
0.050 (1.27)
0.449 (11.40)
0.020 (0.51)
16 PLCS
0.317 (8.05)
Dimensions in inches (mm); scale = approx. 5X
IL711/IL712/IL721
16
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Ordering Information
IL 711 T - 3 E TR13
Bulk Packaging
Blank = Tube
TR7 = 7'' Tape and Reel
TR13 = 13'' Tape and Reel
Package
Blank = 80/20 Tin/Lead Plating
E = RoHS Compliant
Package Type
-1 = MSOP
-2 = PDIP
-3 = 0.15'' 8-pin SOIC
Blank = True 8 (8mm creepage)
Grade
Blank = Standard
S = High Speed (150 Mbps)
T = High Temperature (125˚C)
V = High Isolation Voltage
 (6 kV True 8; 2.5 kV MSOP)
Base Part Number
711 = 2 Transmit Channels
712  = 1 Transmit Channel
 1 Receive Channel
721  = 1 Transmit Channel
 1 Receive Channel
 (reverse pinout)
Product Family
IL = Isolators
Valid Part Numbers
IL711E
IL711TE
IL711VE
IL711-1E
IL711S-1E
IL711T-1E
IL711TV-1E
IL711V-1E
IL711-2
IL711-2E
IL711T-2
IL711T-2E
IL711-3
IL711S-3
IL711T-3
IL711-3E
IL711S-3E
IL711T-3E
All MSOP and SOIC parts are available 
on tape and reel.
IL712-1E
IL712S-1E
IL712T-1E
IL712TV-1E
IL712V-1E
IL712-2
IL712-2E
IL712T-2
IL712T-2E
IL712-3
IL712S-3
IL712T-3
IL712-3E
IL712S-3E
IL712T-3E
IL721E
IL721TE
IL721VE
IL721-3
IL721-3E
IL721T-3
IL721T-3E
IL711/IL712/IL721
17
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Available Parts
Available
Parts
Transmit
Channels
Receive
Channels Mbps
Maximum
Temperature
Isolation
Voltage
(RMS) Package RoHS
IL711-1E 2 0 110 100°C 1 kV
MSOP-8 Y
IL711-2 2 0 110 100°C 2.5 kV
PDIP-8 N
IL711-2E 2 0 110 100°C 2.5 kV
PDIP-8 Y
IL711-3 2 0 110 100°C 2.5 kV
SOIC-8 N
IL711-3E 2 0 110 100°C 2.5 kV
SOIC-8 Y
IL711S-1E 2 0 150 100°C 1 kV
MSOP-8 Y
IL711S-3E 2 0 150 100°C 2.5 kV
SOIC-8 Y
IL711T-1E 2 0 110 125°C 1 kV
MSOP-8 Y
IL711TV-1E 2 0 110 125°C 2.5 kV
MSOP-8 Y
IL711T-2 2 0 110 125°C 2.5 kV
PDIP-8 N
IL711T-2E 2 0 110 125°C 2.5 kV
PDIP-8 Y
IL711T-3 2 0 110 125°C 2.5 kV
SOIC-8 N
IL711T-3E 2 0 110 125°C 2.5 kV
SOIC-8 Y
IL711V-1E 2 0 110 100°C 2.5 kV MSOP-8 Y
IL711VE 2 0 110 125°C 6 kV True8 Y
IL712-1E 1 1 110 100°C 1 kV MSOP-8 Y
IL712-2 1 1 110 100°C 2.5 kV PDIP-8 N
IL712-2E 1 1 110 100°C 2.5 kV PDIP-8 Y
IL712-3 1 1 110 100°C 2.5 kV SOIC-8 N
IL712-3E 1 1 110 100°C 2.5 kV
SOIC-8 Y
IL712S-1E 1 1 150 100°C 1 kV
MSOP-8 Y
IL712S-3E 1 1 150 100°C 2.5 kV
SOIC-8 Y
IL712T-1E 1 1 110 125°C 1 kV
MSOP-8 Y
IL712TV-1E 1 1 110 125°C 2.5 kV
MSOP-8 Y
IL712T-2 1 1 110 125°C 2.5 kV
PDIP N
IL712T-2E 1 1 110 125°C 2.5 kV
PDIP Y
IL712T-3 1 1 110 125°C 2.5 kV
SOIC-8 N
IL712T-3E 1 1 110 125°C 2.5 kV
SOIC-8 Y
IL712V-1E 1 1 110 100°C 2.5 kV
MSOP Y
IL721-3E 1 1 110 105°C 2.5 kV
SOIC-8 Y
IL721E 1 1 110 100°C 2.5 kV
True8 Y
IL721T-3E 1 1 110 125°C 2.5 kV
SOIC-8 Y
IL721VE 1 1 110 125°C 6 kV True8 Y
All MSOP and SOIC part types are available on tape and reel.
IL711/IL712/IL721
18
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ISB-DS-001-IL711/12-AO
November 2020
Change
•
Changed “Propagation Delay Skew” to “Propagation Delay difference between
any two parts” for clarity (pp. 6 and 7).
•
Added output-side dynamic current specifications (pp. 6 and 7).
ISB-DS-001-IL711/12-AN
Changes
• Upgraded CMTI specifications.
• Added ATEC / IEC 60079 Intrinsic Safety pending (p. 3).
ISB-DS-001-IL711/12-AM Changes
• Extended minimum operating power supplies to 2.7 volts.
• Explicitly listed part types for max. operating temperatures.
• Changed PDIP8 creepage specifications from 7.04 mm to 6.8 mm.
• Updated EMC standards.
• Deleted minimum magnetic field immunity specifications (not 100% tested).
• Revised thermal resistance specifications.
• Added Typical Performance Graphs.
• More detailed description of operation.
ISB-DS-001-IL711/12-AL Changes
• Added IL711TV-1E and IL712TV-1E
125°C, 2.5 kV isolation MSOP configurations.
• Eliminated non-RoHS MSOPs.
ISB-DS-001-IL711/12-AK Change
• Updated SOIC8 package outline drawing.
ISB-DS-001-IL711/12-AJ Change
•
••
• Updated VDE Reinforced Isolation file number and description.
ISB-DS-001-IL711/12-AI
Changes
• Updated VDE certification standard to VDE V 0884-10.
• Upgraded “VE” Version Surge Immunity specification to 12.8 kV.
• Upgraded “VE” Version VDE 0884-10 rating to reinforced insulation.
ISB-DS-001-IL711/12-AH Changes
• Increased V-Series isolation voltage to 6 kVrms.
• Increased typ. Total Barrier Thickness specification to 0.016 mm.
• Increased CTI min. specification to ≥600 V
RMS
.
ISB-DS-001-IL711/12-AG
Changes
• Added V-Series high isolation voltage versions (5 kV True 8 and 2.5 kV MSOP).
• More detailed “Available Parts” table.
ISB-DS-001-IL711/12-AF
Changes
• Added product illustrations to first page.
• Revised and added details to thermal characteristic specifications (p. 2).
• Added VDE 0884 Safety-Limiting Values (p. 3).
ISB-DS-001-IL711/12-AE Changes
• IEC 60747-5-5 (VDE 0884) certification.
IL711/IL712/IL721
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Datasheet Limitations
The information and data provided in datasheets shall define the specification of the product as agreed between NVE and its customer, unless NVE and
customer have explicitly agreed otherwise in writing. All specifications are based on NVE test protocols. In no event however, shall an agreement be
valid in which the NVE product is deemed to offer functions and qualities beyond those described in the datasheet.
Limited Warranty and Liability
Information in this document is believed to be accurate and reliable. However, NVE does not give any representations or warranties, expressed or
implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information.
In no event shall NVE be liable for any indirect, incidental, punitive, special or consequential damages (including, without limitation, lost profits, lost
savings, business interruption, costs related to the removal or replacement of any products or rework charges) whether or not such damages are based on
tort (including negligence), warranty, breach of contract or any other legal theory.
Right to Make Changes
NVE reserves the right to make changes to information published in this document including, without limitation, specifications and product descriptions
at any time and without notice. This document supersedes and replaces all information supplied prior to its publication.
Use in Life-Critical or Safety-Critical Applications
Unless NVE and a customer explicitly agree otherwise in writing, NVE products are not designed, authorized or warranted to be suitable for use in life
support, life-critical or safety-critical devices or equipment. NVE accepts no liability for inclusion or use of NVE products in such applications and such
inclusion or use is at the customer’s own risk. Should the customer use NVE products for such application whether authorized by NVE or not, the
customer shall indemnify and hold NVE harmless against all claims and damages.
Applications
Applications described in this datasheet are illustrative only. NVE makes no representation or warranty that such applications will be suitable for the
specified use without further testing or modification.
Customers are responsible for the design and operation of their applications and products using NVE products, and NVE accepts no liability for any
assistance with applications or customer product design. It is customer’s sole responsibility to determine whether the NVE product is suitable and fit for
the customer’s applications and products planned, as well as for the planned application and use of customer’s third party customers. Customers should
provide appropriate design and operating safeguards to minimize the risks associated with their applications and products.
NVE does not accept any liability related to any default, damage, costs or problem which is based on any weakness or default in the customer’s
applications or products, or the application or use by customer’s third party customers. The customer is responsible for all necessary testing for the
customer’s applications and products using NVE products in order to avoid a default of the applications and the products or of the application or use by
customer’s third party customers. NVE accepts no liability in this respect.
Limiting Values
Stress above one or more limiting values (as defined in the Absolute Maximum Ratings System of IEC 60134) will cause permanent damage to the
device. Limiting values are stress ratings only and operation of the device at these or any other conditions above those given in the recommended
operating conditions of the datasheet is not warranted. Constant or repeated exposure to limiting values will permanently and irreversibly affect the
quality and reliability of the device.
Terms and Conditions of Sale
In case an individual agreement is concluded only the terms and conditions of the respective agreement shall apply. NVE hereby expressly objects to
applying the customer’s general terms and conditions with regard to the purchase of NVE products by customer.
No Offer to Sell or License
Nothing in this document may be interpreted or construed as an offer to sell products that is open for acceptance or the grant, conveyance or implication
of any license under any copyrights, patents or other industrial or intellectual property rights.
Export Control
This document as well as the items described herein may be subject to export control regulations. Export might require a prior authorization from national
authorities.
Automotive Qualified Products
Unless the datasheet expressly states that a specific NVE product is automotive qualified, the product is not suitable for automotive use. It is neither
qualified nor tested in accordance with automotive testing or application requirements. NVE accepts no liability for inclusion or use of non-automotive
qualified products in automotive equipment or applications.
In the event that customer uses the product for design-in and use in automotive applications to automotive specifications and standards, customer (a) shall
use the product without NVE’s warranty of the product for such automotive applications, use and specifications, and (b) whenever customer uses the
product for automotive applications beyond NVE’s specifications such use shall be solely at customer’s own risk, and (c) customer fully indemnifies
NVE for any liability, damages or failed product claims resulting from customer design and use of the product for automotive applications beyond NVE’s
standard warranty and NVE’s product specifications.
IL711/IL712/IL721
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An ISO 9001 Certified Company
NVE Corporation
11409 Valley View Road
Eden Prairie, MN 55344-3617 USA
Telephone: (952) 829-9217
www.nve.com
e-mail: iso-info@nve.com
©NVE Corporation
All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner.
ISB-DS-001-IL711/12-AO
November 2020