Isolators

ISO7721QDWQ1

LTB

AUTOMOTIVE, ROBUST EMC, DUAL-CHANNEL, 1/1, REINFORCED DIGITAL ISOLATOR

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Search across all available documentation for this part.

DocumentsHow to Replace Optocouplers with Digital Isolators in Standard Interface Circuit (Rev. A)ISO77xxD Single- and Dual-Digital Isolator Evaluation Module (Rev. A)+18

Isolators

ISO7721QDWQ1

LTB

Texas Instruments

AUTOMOTIVE, ROBUST EMC, DUAL-CHANNEL, 1/1, REINFORCED DIGITAL ISOLATOR

Deep-Dive with AI

DocumentsHow to Replace Optocouplers with Digital Isolators in Standard Interface Circuit (Rev. A)ISO77xxD Single- and Dual-Digital Isolator Evaluation Module (Rev. A)+18

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	ISO7721QDWQ1

Channel Type	Unidirectional
Common Mode Transient Immunity (Min) [Min]	85 kV/Ás
Data Rate	100 Mbps
Grade	Automotive
Inputs - Side 1/Side 2	1/1
Isolated Power	False
Mounting Type	Surface Mount
Number of Channels [custom]	2
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 °C
Package / Case	16-SOIC
Package / Case [x]	0.295 in
Package / Case [y]	7.5 mm
Propagation Delay tpLH / tpHL (Max) [Max] [custom]	16 ns
Propagation Delay tpLH / tpHL (Max) [Max] [custom]	16 ns
Pulse Width Distortion (Max) [Max]	4.9 ns
Qualification	AEC-Q100
Rise / Fall Time (Typ) [custom]	1.9 ns
Rise / Fall Time (Typ) [custom]	1.8 ns
Supplier Device Package	16-SOIC
Technology	Capacitive Coupling
Type	General Purpose
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	2.25 V

ISO7721-Q1 Series

Automotive, robust EMC, dual-channel, 1/1, reinforced digital isolator

Part	Supplier Device Package	Mounting Type	Grade	Operating Temperature [Max]	Operating Temperature [Min]	Number of Channels [custom]	Propagation Delay tpLH / tpHL (Max) [Max] [custom]	Propagation Delay tpLH / tpHL (Max) [Max] [custom]	Qualification	Voltage - Supply [Max]	Voltage - Supply [Min]	Package / Case [x]	Package / Case	Package / Case [y]	Pulse Width Distortion (Max) [Max]	Channel Type	Common Mode Transient Immunity (Min) [Min]	Data Rate	Technology	Rise / Fall Time (Typ) [custom]	Rise / Fall Time (Typ) [custom]	Type	Inputs - Side 1/Side 2	Utilized IC / Part	Supplied Contents	Primary Attributes	Function	Rise / Fall Time (Typ) [custom]	Rise / Fall Time (Typ) [custom]	Package / Case [custom]	Package / Case [custom]	Voltage - Isolation
Texas Instruments ISO7721QDWQ1	16-SOIC	Surface Mount	Automotive	125 °C	-40 °C	2	16 ns	16 ns	AEC-Q100	5.5 V	2.25 V	0.295 in	16-SOIC	7.5 mm	4.9 ns	Unidirectional	85 kV/Ás	100 Mbps	Capacitive Coupling	1.9 ns	1.8 ns	General Purpose	1/1
Texas Instruments ISO7721DEVM																						Interface		ISO7721D	Board(s)	2-Channel (Dual)	Digital Isolator
Texas Instruments ISO7721QDWRQ1	16-SOIC	Surface Mount	Automotive	125 °C	-40 °C	2	16 ns	16 ns	AEC-Q100	5.5 V	2.25 V	0.295 in	16-SOIC	7.5 mm	4.9 ns	Unidirectional	85 kV/Ás	100 Mbps	Capacitive Coupling			General Purpose	1/1					3.9 ns	3.9 ns
Texas Instruments ISO7721DWV	8-SOIC	Surface Mount		125 °C	-55 °C	2	16 ns	16 ns		5.5 V	2.25 V		8-SOIC		4.9 ns	Unidirectional	85 kV/Ás	100 Mbps	Capacitive Coupling	1.9 ns	1.8 ns	General Purpose	1/1							0.295 in	7.5 mm
Texas Instruments ISO7721DW	16-SOIC	Surface Mount		125 °C	-55 °C	2	16 ns	16 ns		5.5 V	2.25 V	0.295 in	16-SOIC	7.5 mm	4.9 ns	Unidirectional	85 kV/Ás	100 Mbps	Capacitive Coupling	1.9 ns	1.8 ns	General Purpose	1/1
Texas Instruments ISO7721FDWV	8-SOIC	Surface Mount		125 °C	-55 °C	2	16 ns	16 ns		5.5 V	2.25 V		8-SOIC		4.9 ns	Unidirectional	85 kV/Ás	100 Mbps	Capacitive Coupling	1.9 ns	1.8 ns	General Purpose	1/1							0.295 in	7.5 mm
Texas Instruments ISO7721FQDWQ1	16-SOIC	Surface Mount	Automotive	125 °C	-40 °C	2	16 ns	16 ns	AEC-Q100	5.5 V	2.25 V	0.295 in	16-SOIC	7.5 mm	4.9 ns	Unidirectional	85 kV/Ás	100 Mbps	Capacitive Coupling	1.9 ns	1.8 ns	General Purpose	1/1
Texas Instruments ISO7721FQDRQ1	8-SOIC	Surface Mount	Automotive	125 °C	-40 °C	2	16 ns	16 ns	AEC-Q100	5.5 V	2.25 V	0.154 in	8-SOIC	3.9 mm	4.9 ns	Unidirectional	85 kV/Ás	100 Mbps	Capacitive Coupling	1.9 ns	1.8 ns	General Purpose	1/1									3000 VAC
Texas Instruments ISO7721DWR	16-SOIC	Surface Mount		125 °C	-55 °C	2	16 ns	16 ns		5.5 V	2.25 V	0.295 in	16-SOIC	7.5 mm	4.9 ns	Unidirectional	85 kV/Ás	100 Mbps	Capacitive Coupling	1.9 ns	1.8 ns	General Purpose	1/1
Texas Instruments ISO7721FDWVR	8-SOIC	Surface Mount		125 °C	-55 °C	2	16 ns	16 ns		5.5 V	2.25 V		8-SOIC		4.9 ns	Unidirectional	85 kV/Ás	100 Mbps	Capacitive Coupling	1.9 ns	1.8 ns	General Purpose	1/1							0.295 in	7.5 mm

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tube	440	$ 1.97
Texas Instruments	TUBE	1	$ 2.90
		100	$ 2.40
		250	$ 1.72
		1000	$ 1.30

Description

General part information

ISO7721-Q1 Series

The ISO772x devices are high-performance, dual-channel digital isolators with 5000 VRMS (DW and DWV packages) and 3000 VRMS (D package) isolation ratings per UL 1577. This family includes devices with reinforced insulation ratings according to VDE, CSA, TUV and CQC.The ISO7721B device is designed for applications that require basic insulation ratings only.

The ISO772x devices provide high electromagnetic immunity and low emissions at low power consumption, while isolating CMOS or LVCMOS digital I/Os. Each isolation channel has a logic input and output buffer separated by a double capacitive silicon dioxide (SiO2) insulation barrier. The ISO7720 device has both channels in the same direction while the ISO7721 device has both channels in the opposite direction. In the event of input power or signal loss, the default output is high for devices without suffix F and low for devices with suffix F. See the Device Functional Modes section for further details.

Used in conjunction with isolated power supplies, these devices help prevent noise currents on data buses, such as RS-485, RS-232, and CAN , from damaging sensitive circuitry. Through innovative chip design and layout techniques, the electromagnetic compatibility of the ISO772x devices has been significantly enhanced to ease system-level ESD, EFT, surge, and emissions compliance. The ISO772x family of devices is available in 16-pin SOIC wide-body (DW), 8-pin SOIC wide-body (DWV), and 8-pin SOIC narrow-body (D) packages.

Documents

Technical documentation and resources

How to Replace Optocouplers with Digital Isolators in Standard Interface Circuit (Rev. A)

Application brief

ISO772x-Q1High-Speed, Robust EMC, Reinforced Dual-Channel Digital Isolators datasheet (Rev. C)

Data sheet

CSA Certificate for ISO77xxDW

Certificate

CQC Certificate for ISOxxDWx (Rev. J)

Certificate

CSA Certificate for ISO77xxDWV

Certificate

CSA Certificate for ISO77xxD

Certificate

IEC60601-1-2 Compliant Dig. Iso Design W/ 16-kV Contact Discharge ESD Protection

Application note

Improve Your System Performance by Replacing Optocouplers with Digital Isolators (Rev. C)

White paper

CQC Certificate for ISOxxD (Rev. A)

Certificate

Distance Through Insulation: How Digital Isolators Meet Certification Requiremen

White paper

ISO7721QDWQ1

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ISO7721QDWQ1

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Technical Specifications

ISO7721-Q1 Series

Pricing

Description

ISO7721-Q1 Series

Documents

How to Replace Optocouplers with Digital Isolators in Standard Interface Circuit (Rev. A)

ISO77xxD Single- and Dual-Digital Isolator Evaluation Module (Rev. A)

Why signal isolation matters in 48-V HEV/EV systems

UL Certificate of Compliance File E181974 Vol 4 Sec 6 (Rev. P)

VDE Certificate for Reinforced Isolation for DIN EN IEC 60747-17 (Rev. W)

Universal Digital Isolator Evaluation Module

TUV Certificate for Isolation Devices (Rev. K)

CQC Certificate for ISOxxDWV (Rev. A)

Why are Digital Isolators Certified to Meet Electrical Equipment Standards?

ISO7721-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA

Considerations for Selecting Digital Isolators

ISO772x-Q1High-Speed, Robust EMC, Reinforced Dual-Channel Digital Isolators datasheet (Rev. C)

CSA Certificate for ISO77xxDW

CQC Certificate for ISOxxDWx (Rev. J)

CSA Certificate for ISO77xxDWV

CSA Certificate for ISO77xxD

IEC60601-1-2 Compliant Dig. Iso Design W/ 16-kV Contact Discharge ESD Protection

Improve Your System Performance by Replacing Optocouplers with Digital Isolators (Rev. C)

CQC Certificate for ISOxxD (Rev. A)

Distance Through Insulation: How Digital Isolators Meet Certification Requiremen

ISO7721-Q1 Series