IL 711T-3E Digital Isolator Equivalent & Substitute Parts

Part Overview

The IL 711T-3E is a General Purpose Digital Isolator manufactured by NVE Corp/Isolation Products, part of the IsoLoop® series. This component provides 2500Vrms isolation across 2 channels with 110Mbps data rate and 100kV/µs common mode transient immunity, utilizing Giant Magnetoresistive (GMR) technology. The part is Active status and ROHS3 compliant. Alternative equivalent and substitute parts are necessary to address supply chain flexibility, packaging preferences, technology variations, and application-specific performance requirements while maintaining isolation voltage and channel configuration compatibility.

Key Parameters

Parameter	Value	Unit	Substitution Relevance
Manufacturer Part Number	IL 711T-3E	-	Primary identifier
Manufacturer	NVE Corp/Isolation Products	-	Technology source
Number of Channels	2	Channels	Critical for circuit topology
Voltage - Isolation	2500	Vrms	Determines isolation capability
Data Rate	110	Mbps	Bandwidth requirement
Common Mode Transient Immunity (Min)	100	kV/µs	Noise immunity specification
Voltage - Supply	3V ~ 5.5V	V	Power supply compatibility
Package / Case	8-SOIC (0.154", 3.90mm Width)	-	PCB footprint compatibility
Operating Temperature	-40°C ~ 125°C	°C	Environmental operating range
Technology	GMR (Giant Magnetoresistive)	-	Isolation method
RoHS Status	ROHS3 Compliant	-	Regulatory compliance

Substitute Part Grouping Explanation

Substitution of the IL 711T-3E is determined by the following critical parameters:

Primary Substitution Criteria:

Number of Channels: 2 (unidirectional, 2 inputs on Side 1, 0 on Side 2)
Voltage - Isolation: 2500Vrms minimum
Package / Case: 8-SOIC (0.154", 3.90mm Width)
Mounting Type: Surface Mount

Secondary Compatibility Parameters:

Voltage - Supply: 3V ~ 5.5V or compatible range
Operating Temperature: -40°C ~ 125°C or compatible range
Data Rate: 110Mbps or higher
Common Mode Transient Immunity: 100kV/µs or higher

Substitution Categories:

Category 1: Parametric Equivalents (Same Channel Count, Same Isolation Voltage, Same Package)

IL 711T-3: Identical specifications except RoHS non-compliant
IL 710T-3E: Single channel variant (1 channel instead of 2)
IL 710T-3: Single channel variant, RoHS non-compliant

Category 2: Similar Parts (Same Isolation Voltage, Same Package, Different Technology/Performance)

ADUM1200 series (Analog Devices): Magnetic coupling technology, lower CMTI (25kV/µs), lower data rates (1-25Mbps), wider supply range (2.7V ~ 5.5V)
ADUM3211BRZ (Analog Devices): Bidirectional channels (1/1 configuration), magnetic coupling, lower CMTI
ISO7220AQDRQ1 (Texas Instruments): Capacitive coupling technology, lower CMTI (25kV/µs), lower data rate (1Mbps), automotive grade

Parameter Comparison

Part Number	Manufacturer	Channels	Isolation (Vrms)	Data Rate (Mbps)	CMTI (kV/µs)	Supply (V)	Temp Range (°C)	Technology	Package	RoHS
IL 711T-3E	NVE Corp	2	2500	110	100	3.0 ~ 5.5	-40 ~ 125	GMR	8-SOIC	ROHS3
IL 711T-3	NVE Corp	2	2500	110	100	3.0 ~ 5.5	-40 ~ 125	GMR	8-SOIC	Non-compliant
IL 710T-3E	NVE Corp	1	2500	110	100	3.0 ~ 5.5	-40 ~ 125	GMR	8-SOIC	ROHS3
IL 710T-3	NVE Corp	1	2500	110	100	3.0 ~ 5.5	-40 ~ 125	GMR	8-SOIC	Non-compliant
ADUM1200ARZ	Analog Devices	2	2500	1	25	2.7 ~ 5.5	-40 ~ 105	Magnetic Coupling	8-SOIC	ROHS3
ADUM1200BRZ	Analog Devices	2	2500	10	25	2.7 ~ 5.5	-40 ~ 105	Magnetic Coupling	8-SOIC	ROHS3
ADUM1200BRZ-RL7	Analog Devices	2	2500	10	25	2.7 ~ 5.5	-40 ~ 105	Magnetic Coupling	8-SOIC	ROHS3
ADUM1200CRZ	Analog Devices	2	2500	25	25	2.7 ~ 5.5	-40 ~ 105	Magnetic Coupling	8-SOIC	ROHS3
ADUM1200CRZ-RL7	Analog Devices	2	2500	25	25	2.7 ~ 5.5	-40 ~ 105	Magnetic Coupling	8-SOIC	ROHS3
ADUM3211BRZ	Analog Devices	2	2500	10	25	3.0 ~ 5.5	-40 ~ 105	Magnetic Coupling	8-SOIC	ROHS3
ISO7220AQDRQ1	Texas Instruments	2	2500	1	25	3.0 ~ 5.5	-40 ~ 125	Capacitive Coupling	8-SOIC	ROHS3

Engineering Selection Recommendations

Direct Parametric Equivalents (Recommended for Pin-Compatible Replacement):

IL 711T-3E and IL 711T-3 are functionally identical in electrical specifications. Selection between them is determined by regulatory compliance requirements. IL 711T-3E is ROHS3 compliant and recommended for applications subject to RoHS regulations. IL 711T-3 is suitable only for applications where RoHS compliance is not mandated.

Single-Channel Alternative (IL 710T-3E / IL 710T-3):

These parts are suitable only when circuit design requires single-channel isolation instead of dual-channel. They maintain identical electrical performance (110Mbps, 100kV/µs CMTI, 2500Vrms isolation) and package compatibility. IL 710T-3E is ROHS3 compliant; IL 710T-3 is not.

Analog Devices iCoupler® Series (ADUM1200 / ADUM3211):

These parts provide 2500Vrms isolation in 8-SOIC package with ROHS3 compliance. Substitution is valid only for applications where lower data rates and lower CMTI are acceptable. ADUM1200 series offers data rates of 1-25Mbps with 25kV/µs CMTI. ADUM3211BRZ provides bidirectional channel configuration (1 input/1 output per channel) instead of unidirectional. All ADUM variants support extended supply range (2.7V minimum) and reduced operating temperature maximum (-40°C to 105°C).

Texas Instruments ISO7220AQDRQ1:

This part provides 2500Vrms isolation with automotive-grade qualification (AEC-Q100). Substitution is valid only for applications accepting 1Mbps data rate and 25kV/µs CMTI. Operating temperature range extends to 125°C. Capacitive coupling technology differs from GMR and magnetic coupling approaches.

Compliance and Certification Considerations:

All recommended substitutes are ROHS3 compliant and REACH unaffected. ISO7220AQDRQ1 carries automotive qualification (AEC-Q100) suitable for automotive applications. Moisture sensitivity level is 1 (unlimited) for all parts except ISO7220AQDRQ1 (MSL 3, 168 hours).

Frequently Asked Questions (FAQ)

Q1: Can IL 710T-3E replace IL 711T-3E in my circuit?

IL 710T-3E is a single-channel isolator while IL 711T-3E provides two channels. Substitution is possible only if your circuit design requires only one isolation channel. All other electrical parameters (110Mbps data rate, 100kV/µs CMTI, 2500Vrms isolation, 8-SOIC package) are identical. Verify your schematic to confirm single-channel operation is acceptable.

Q2: What is the difference between IL 711T-3 and IL 711T-3E?

Both parts are electrically identical 2-channel digital isolators with 110Mbps data rate and 100kV/µs CMTI. The primary difference is regulatory compliance: IL 711T-3E is ROHS3 compliant while IL 711T-3 is not. Select IL 711T-3E for applications subject to RoHS regulations or when future compliance is required.

Q3: Can I use ADUM1200BRZ instead of IL 711T-3E?

ADUM1200BRZ provides 2500Vrms isolation in the same 8-SOIC package with 2 channels. However, it operates at 10Mbps maximum data rate (versus 110Mbps) and 25kV/µs CMTI (versus 100kV/µs). Substitution is valid only for low-speed applications where these reduced specifications are acceptable. The part uses magnetic coupling technology instead of GMR.

Q4: What is the difference between ADUM1200BRZ and ADUM1200BRZ-RL7?

Both parts are electrically identical. The difference is packaging: ADUM1200BRZ is supplied in Tube packaging while ADUM1200BRZ-RL7 is supplied in Cut Tape (CT) & Digi-Reel® format. Select based on your assembly process requirements and inventory management preferences.

Q5: Is ISO7220AQDRQ1 suitable for my application?

ISO7220AQDRQ1 provides 2500Vrms isolation with automotive-grade qualification (AEC-Q100). Substitution is valid only if your application accepts 1Mbps data rate (versus 110Mbps) and 25kV/µs CMTI (versus 100kV/µs). This part uses capacitive coupling technology. It is suitable for low-speed automotive applications requiring AEC-Q100 qualification.

Q6: Can I use ADUM3211BRZ as a substitute?

ADUM3211BRZ provides 2500Vrms isolation in 8-SOIC package with 10Mbps data rate and 25kV/µs CMTI. The key difference is channel configuration: ADUM3211BRZ has bidirectional channels (1 input and 1 output per channel) while IL 711T-3E has unidirectional channels (2 inputs, 0 outputs). Substitution is valid only if your circuit design accommodates bidirectional isolation.

Q7: What supply voltage range should I verify for substitution?

IL 711T-3E operates at 3V to 5.5V. ADUM1200 series supports 2.7V to 5.5V (wider range). ISO7220AQDRQ1 and ADUM3211BRZ support 3V to 5.5V. Verify your power supply design meets the minimum voltage requirement of your selected substitute part.

Q8: Are all substitute parts available in the same package?

All parts listed are available in 8-SOIC (0.154", 3.90mm Width) package. PCB footprint compatibility is confirmed across all substitutes. Verify your PCB layout accommodates the specific part number selected, as some variants may have different pin assignments despite identical package dimensions.

Q9: What is the operating temperature difference between IL 711T-3E and ADUM series?

IL 711T-3E operates from -40°C to 125°C. ADUM1200 and ADUM3211 series operate from -40°C to 105°C (20°C lower maximum). ISO7220AQDRQ1 operates from -40°C to 125°C. Verify your application's maximum operating temperature requirement before substitution.

Q10: Which substitute offers the highest data rate?

IL 711T-3E and IL 711T-3 both offer 110Mbps data rate, the highest among all listed parts. ADUM1200CRZ and ADUM1200CRZ-RL7 offer 25Mbps. ADUM1200BRZ and ADUM3211BRZ offer 10Mbps. ADUM1200ARZ and ISO7220AQDRQ1 offer 1Mbps. Select based on your circuit's required bandwidth.

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