IL610 IL611 IL612
IL613 IL614
Isoloop® is a registered trademark of NVE Corporation.
*U.S. Patent number 5,831,426; 6,300,617 and others.
ISB-DS-001-IL612-A, January 20, 2005
NVE Corp., 11409 Valley View Road, Eden Prairie, MN 55344-3617, U.S.A.
Telephone: 952-829-9217, Fax 952-829-9189, www.isoloop.com
© 2005 NVE Corporation
Passive Input Digital Isolators
Functional Diagram
Features
• 40 Mbps Data Rate
• Very Wide Input Voltage Range
• Open Drain or CMOS Outputs
• Failsafe Output (Logic high output for zero coil current )
• Output Enable
• 3.3 V or 5 V Power Supply
• 2500 VRMS Isolation (1 Minute)
• Low Power Dissipation
• -40°C to 85°C Temperature Range
• 20 kV/µs Typical Common Mode Rejection
• UL1577 & IEC61010 Approval (pending)
• Available in MSOP, SOIC, and PDIP Packages
and as Bare Die
Applications
• CAN Bus/ Device Net
• General Purpose Opto Replacement
• Wired-OR Alarms
• SPI interface
• I2C
• RS 485, RS422, RS232
• Digital Fieldbus
• Size critical multi-channel applications
Description
The IL600 series are isolated signal couplers with CMOS or
open drain transistor outputs which can be used to replace
opto-couplers in many standard isolation functions. The
devices are manufactured with NVE’s patented IsoLoop®
GMR sensor technology giving exceptionally small size and
low power dissipation.
A single resistor is used to set maximum input current for
input voltages above 0.5 V. The devices are available in
SOIC, PDIP and MSOP packages and as bare die.
IL610 IL611 IL612
IL613 IL614
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Absolute Maximum Ratings(1)
Parameters Symbol Min. Typ. Max. Units Test Conditions
Storage Temperature TS -55 150 °C
Ambient Operating Temperature TA -55 125 °C
Supply Voltage VDD -0.5 7 V
Input Current IIN -25 25 mA
Output Voltage VO -0.5 VCC+0.5 V
Maximum Output Current IO -10 10 mA
ESD 2 kV HBM
Recommended Operating Conditions
Parameters Symbol Min. Typ. Max. Units Test Conditions
Ambient Operating Temperature TA -40 85 °C
Supply Voltage VDD 3.0 5.5 V
Input Current IIN 0 10 mA
Output Current IOUT -4 4 mA
Open Drain Reverse Voltage VSD -0.5 V
Open Drain Voltage VDS 6.5 V
Open Drain Load Current IOD 4 mA
Input Signal Rise and Fall Times tIR, tIF 50 ms
Common Mode Input Voltage VCM 400 VAC RMS
Insulation Specifications
Parameters Symbol Min. Typ. Max. Units Test Conditions
Creepage Distance (external)
MSOP 3.010 mm
0.15’’ SOIC 4.026 mm
0.30’’ SOIC 8.077 mm
0.30’’ PDIP 7.077 mm
Internal Isolation Distance 9 µm
Leakage Current 0.2 µARMS 240 VRMS, 60 Hz
Barrier Impedance >1014||7 Ω || pF
Safety & Approvals
IEC61010-1
TUV Certificate Numbers: Approval Pending
Classification
Model Package
Pollution
Degree
Material
Group
Max. Working
Voltage
IL610-1, IL610A-1, IL611-1, IL611A-1 MSOP II III 100 VRMS
IL610-2, IL610A-2, IL611-2, IL611A-2, IL612-2, IL612A-2 PDIP II III 300 VRMS
IL613, IL614 SOIC (0.3") II III 300 VRMS
IL610-3, IL610A-3, IL611-3, IL611A-3, IL612-3, IL612A-3
IL613-3, IL614-3
SOIC (0.15") II III 150 VRMS
UL 1577
Component Recognition program. File #: Approval Pending
Rated 2500VRMS for 1 minute (SOIC, PDIP), 1000VRMS for 1 minute (MSOP)
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.
IL610 IL611 IL612
IL613 IL614
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IL610 and IL610A Pin Connections
1 NC No internal connection
2 IN+ Coil connection
3 IN- Coil connection
4 NC No internal connection
5 GND Ground return for VDD
6 OUT Data out
7 VOE Output enable. Internally held low with
100 kΩ
8 VDD Supply Voltage
IL610
IL610A
IL611 and IL611A Pin Connections
1 IN1+ Channel 1 coil connection
2 IN1- Channel 1 coil connection
3 IN2+ Channel 2 coil connection
4 IN2- Channel 2 coil connection
5 GND Ground return for VDD
6 OUT2 Data out channel 2
7 OUT1 Data out channel 1
8 VDD Supply Voltage
IL611
IL611A
IL612 and IL612A Pin Connections
1 IN1 Data in, channel 1
2 VDD 1 Supply Voltage 1
3 OUT2 Data out, channel 2
4 GND1 Ground return for VDD1
5 GND2 Ground return for VDD2
6 IN2 Data in, channel 2
7 VDD 2 Supply Voltage 2
8 OUT1 Data out, channel 1
IL612
IL612A
IL613 Pin Connections
1 IN1+ Channel 1 coil connection
2 * Internally connected to pin 8
3 IN1- Channel 1 coil connection
4 IN2+ Channel 2 coil connection
5 IN2- Channel 2 coil connection
6 IN3+ Channel 3 coil connection
7 IN3- Channel 3 coil connection
8 * Internally connected to pin 2
9 GND Ground return for VDD (Internally
connected to pin 15)
10 OUT3 Data out channel 3
11 NC No connection
12 VDD Supply Voltage. Pin 12 and pin 16 must be
connected externally
13 OUT2 Data out channel 2
14 OUT1 Data out channel 1
15 GND Ground return for VDD (Internally
connected to pin 9)
16 VDD Supply Voltage. Pin 12 and pin 16 must be
connected externally
IL613
* Pins 2 and 8 internally connected
** Pins 9 and 15 internally connected
IL610 IL611 IL612
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IL614 Pin Connections
1 VDD1 Supply Voltage 1
2 GND1 Ground return for VDD1 (Internally
connected to pin 8)
3 OUT1 Data out channel 1
4 RE Channel 1 data output enable. Internally
held low with 100 kΩ
5 IN2 Data in channel 2
6 Vcoil Supply connection for channel 2 and
channel 3 coils
7 IN3 Data in channel 3
8 GND1 Ground return for VDD1 (Internally
connected to pin 2)
9 GND2 Ground return for VDD2 (Internally
connected to pin 15)
10 OUT3 Data out channel 3
11 NC No connection
12 VDD2 Supply Voltage 2
13 OUT2 Data out channel 2
14 IN1+ Coil connection
15 GND2 Ground return for VDD2 (Internally
connected to pin 9)
16 IN1- Coil connection
IL614
* Pins 2 and 8 internally connected
** Pins 9 and 15 internally connected
IL610 IL611 IL612
IL613 IL614
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Electrical Specifications
Electrical Specifications are Tmin to Tmax unless otherwise stated.
Parameters Symbol Min. Typ. Max. Units Test Conditions
Coil Input Impedance ZCOIL 47||8 55||9 67||10
Ω||nH TAMB = 25°C
Temperature Coeff of Coil Resistance TC RCOIL 0.16 0.165
Ω/°C
Input Threshold for Logic High I INH 2
mA
Input Threshold for Logic Low I INL 10 mA
Quiescent Current
IL610, IDD1
IL610, IDD2
IL611, IDD1
IL611, IDD2
IL612, IDD1
IL612, IDD2
IL613, IDD1
IL613, IDD2
IL614, IDD1
IL614, IDD2
2
4
2
2
6
2
4
0
3
0
6
3
3
0
9
3
6
µA
mA
µA
mA
mA
mA
µA
mA
mA
mA
VDD= 5 V, IIN=0
Quiescent Current
IL610, IDD1
IL610, IDD2
IL611, IDD1
IL611, IDD2
IL612, IDD1
IL612, IDD2
IL613, IDD1
IL613, IDD2
IL614, IDD1
IL614, IDD2
1.3
2.6
1.3
1.3
4
1.3
2.6
0
2
0
4
2
2
0
6
2
4
µA
mA
µA
mA
mA
mA
µA
mA
mA
mA
VDD= 3.3 V, IIN=0
VDD-0.1 VDD V
IO = -20 µA
Logic High Output Voltage(4) VOH
VDD V
DD-0.5 IO = -4 mA
0 0.1 V
IO = 20 µA
Logic Low Output Voltage VOL
0.5 0.8 IO = 4 mA
Logic Output Current IO 4 7 mA
Switching Specifications CMOS Outputs
Data Rate 40 Mbps 50% Duty Cycle
Minimum Pulse Width PW 25 ns 50% Points, Vo
Propagation Delay Input to Output
(High to Low)
tPHL
20 25 ns CL = 15 pF,
ICOIL = 10 mA
Propagation Delay Input to Output
(Low to High)
tPLH 20 25 ns CL = 15 pF,
ICOIL = 10 mA
Average Propagation Delay Drift 50 ps/°C
Pulse Width Distortion |tPHL-tPLH| (2) PWD 7 10 ns CL = 15 pF
Propagation Delay Skew (3) t
PSK 10 20 ns CL = 15 pF
Output Rise Time (10-90%) tR 2 4 ns CL = 15 pF
Output Fall Time (10-90%) tF 2 4 ns CL = 15 pF
Common Mode Transient Immunity |CMH|,|CML| 15 20 kV/µs VT = 300 Vpeak
Switching Specifications Open Drain Outputs
Parameters Symbol Min. Typ. Max. Units Test Conditions
Data Rate 10 Mbps 50% Duty Cycle,
Rpullup = 1 kΩ
Minimum Pulse Width PW 100 ns 50% Duty Cycle,
Rpullup = 1 kΩ
Propagation Delay Input to Output
(High to Low)
tPHL 20 25 ns
CL = 2 kΩ ||15 pF
Propagation Delay Input to Output
(Low to High)
tPLH 50 75 ns
CL = 2 kΩ ||15 pF
Common Mode Transient Immunity |CMH|,|CML| 15 20
kV/µs VT = 300 Vpeak
IL610 IL611 IL612
IL613 IL614
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Notes:
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 |tPHL - tPLH|. %PWD is equal to the PWD divided by the pulse width.
3. tPSK is equal to the magnitude of the worst case difference in tPHL and/or tPLH that will be seen between units at 25°C.
4. The term VDD refers to the supply voltage on the output side of the isolated channel.
IL610 IL611 IL612
IL613 IL614
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Operation
The IL600 series are current mode devices. Changes in
current flow into the input coil result in logic state changes
at the output. One of the great advantages of the passive coil
input is that both single ended and differential inputs can be
handled without the need for reverse bias protection. The
internal GMR sensor switches the output to logic low if
current flows from (In-) to (In+). Only a single resistor is
required to limit the input coil to the recommended 10 mA.
This allows large input voltages to be used since there is no
semiconductor structure on the input.
The absolute maximum current through the coil of the IL600
series is 25 mA DC. However, it is important to limit input
current to levels well below this in all applications. The
worst case logic threshold current is 10 mA. While typical
threshold currents are substantially less than this, NVE
recommends designing a 10 mA logic threshold current in
each application. In all cases, the current must flow from In-
to In+ in the coil to switch the output low. This is true
regardless of true or inverted data configurations. Output
logic high is the zero input current state.
Figure 1 shows the response of the IL600 series. The GMR
bridge structure is designed such that the output of the
isolator is logic high when no field signal is present. The
output will switch to the low state with 10 mA of coil
current and the output will switch back to the high state
when the input current falls below 2 mA. This allows glitch-
free interface with low slew rate signals.
Figure 1. IL600 Series Transfer Function
To calculate the value of the protection resistor (R1)
required, use Ohm’s law as shown in the examples below. It
should be noted that we are concerned only with the
magnitude of the voltage across the coil. The absolute values
of Vin High and Vin Low are arbitrary.
Figure 2. Series Resistor Calculation Equivalent Circuit.
Example 1. In this case, Tnom = 25ºC, Vin High is 24 V, Vin
Low is 1.8 V, and Icoil minimum is specified as 10 mA. Total
loop resistance is
Ω 5 = ) −( =
Ω=Ω==+
214Ω552220R1
Therefore,
2220
0.01
22.2
I
Low)V-High(V
)R (R1
coil
in in
coil
Example 2. At a maximum operating temperature of 85°C,
Tmax = 85ºC, Tnom = 25ºC, Vin High = 5 V, Vin Low = 0 V,
and nominal Rcoil = 55 Ω. At Tmax = 85ºC
()
Ω=−=
=
Ω=+=×+=
×
)
−
(
+
=
435 65
0.01
0-5
R-
I
Low)V-High(V
R1
isresistor series drecommende theTherefore,
659.955165.025-8555
TCRTT55R
coil
coil
inin
coilminmaxcoil
Allowance should also be made for the temperature
coefficient of the current limiting resistor to ensure that Icoil
is 10 mA at maximum operating temperature.
Power Supplies
It is recommended that 47 nF ceramic capacitors be used to
decouple the power supplies. The capacitors must be placed
as close as possible to VDD for proper operation.
IL610 IL611 IL612
IL613 IL614
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Application Diagrams
CAN Bus
RS232
IL610 IL611 IL612
IL613 IL614
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I2C
Single Phase Power Control
IL610 IL611 IL612
IL613 IL614
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Inverting and Non-Inverting Circuits
Differential to Single Ended Conversion
IL610 IL611 IL612
IL613 IL614
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Package drawings, dimensions and specifications
8-pin MSOP Package
8-pin SOIC Package
8-pin PDIP Package
IL610 IL611 IL612
IL613 IL614
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0.15" 16-pin SOIC
0.30" 16-pin SOIC
IL610 IL611 IL612
IL613 IL614
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Ordering information and valid part numbers.
IL610 IL611 IL612
IL613 IL614
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About NVE
An ISO 9001 Certified Company
NVE Corporation is a high technology components manufacturer having the unique capability to combine leading edge Giant
Magnetoresistive (GMR) materials with integrated circuits to make high performance electronic components. Products include
Magnetic Field Sensors, Magnetic Field Gradient Sensors (Gradiometer), Digital Magnetic Field Sensors, Digital Signal Isolators
and Isolated Bus Transceivers.
NVE is a leader in GMR research and in 1994 introduced the world’s first products using GMR material, a line of GMR magnetic
field sensors that can be used for position, magnetic media, wheel speed and current sensing.
NVE is located in Eden Prairie, Minnesota, a suburb of Minneapolis. Please visit our Web site at www.nve.com or call 952-829-
9217 for information on products, sales or distribution.
NVE Corporation
11409 Valley View Road
Eden Prairie, MN 55344-3617 USA
Telephone: (952) 829-9217
Fax: (952) 829-9189
Internet: www.nve.com
e-mail: isoinfo@nve.com
The information provided by NVE Corporation is believed to be accurate. However, no responsibility is assumed by NVE
Corporation for its use, nor for any infringement of patents, nor rights or licenses granted to third parties, which may result from
its use. No license is granted by implication, or otherwise, under any patent or patent rights of NVE Corporation. NVE
Corporation does not authorize, nor warrant, any NVE Corporation product for use in life support devices or systems or other
critical applications. The use of NVE Corporation’s products in such applications is understood to be entirely at the customer’s
own risk.
Specifications shown are subject to change without notice.
ISB-DS-001-IL600-A
January 28, 2005
