Specification	ISO7821DWW

Channel Type	Unidirectional
Common Mode Transient Immunity (Min) [Min]	100 V/ns
Data Rate	100 Mbps
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]	-55 °C
Package / Case	16-SOIC
Propagation Delay tpLH / tpHL (Max) [Max] [custom]	16 ns
Propagation Delay tpLH / tpHL (Max) [Max] [custom]	16 ns
Pulse Width Distortion (Max)	4.6 ns
Rise / Fall Time (Typ) [custom]	2.4 ns
Rise / Fall Time (Typ) [custom]	2.4 ns
Supplier Device Package	16-SOIC
Technology	Capacitive Coupling
Type	General Purpose
Voltage - Isolation	5700 Vrms
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	2.25 V

ISO7821LLS Series

Dual-channel, 1/1, 150-Mbps, high-performance, reinforced isolated LVDS buffer

Part	Data Rate	Voltage - Isolation	Pulse Width Distortion (Max)	Mounting Type	Supplier Device Package	Common Mode Transient Immunity (Min) [Min]	Package / Case [x]	Package / Case	Package / Case [y]	Voltage - Supply [Max]	Voltage - Supply [Min]	Number of Channels [custom]	Type	Operating Temperature [Min]	Operating Temperature [Max]	Channel Type	Propagation Delay tpLH / tpHL (Max) [Max] [custom]	Propagation Delay tpLH / tpHL (Max) [Max] [custom]	Technology	Inputs - Side 1/Side 2	Rise / Fall Time (Typ) [custom]	Rise / Fall Time (Typ) [custom]	Pulse Width Distortion (Max) [Max]	Rise / Fall Time (Typ) [custom]	Rise / Fall Time (Typ) [custom]	Function	Primary Attributes	Utilized IC / Part	Supplied Contents
Texas Instruments ISO7821FDW	100 Mbps	5700 Vrms	4.6 ns	Surface Mount	16-SOIC	100 V/ns	0.295 in	16-SOIC	7.5 mm	5.5 V	2.25 V	2	General Purpose	-55 °C	125 °C	Unidirectional	16 ns	16 ns	Capacitive Coupling	1/1	2.4 ns	2.4 ns
Texas Instruments ISO7821LLDW	100 Mbps	5700 Vrms		Surface Mount	16-SOIC	100 V/ns	0.295 in	16-SOIC	7.5 mm	5.5 V	2.25 V	2	General Purpose	-55 °C	125 °C	Unidirectional	25 ns	25 ns	Capacitive Coupling	1/1			4.5 ns
Texas Instruments ISO7821FDWWR	100 Mbps	5700 Vrms	4.6 ns	Surface Mount	16-SOIC	100 V/ns		16-SOIC		5.5 V	2.25 V	2	General Purpose	-55 °C	125 °C	Unidirectional	16 ns	16 ns	Capacitive Coupling	1/1	2.4 ns	2.4 ns
Texas Instruments ISO7821DWW	100 Mbps	5700 Vrms	4.6 ns	Surface Mount	16-SOIC	100 V/ns		16-SOIC		5.5 V	2.25 V	2	General Purpose	-55 °C	125 °C	Unidirectional	16 ns	16 ns	Capacitive Coupling	1/1	2.4 ns	2.4 ns
Texas Instruments ISO7821LLSDWWR	150 Mbps	5700 Vrms		Surface Mount	16-SOIC	100 V/ns		16-SOIC		5.5 V	3 V	2	General Purpose	-55 °C	125 °C	Unidirectional	25 ns	25 ns	Capacitive Coupling	1/1
Texas Instruments ISO7821LLDWW	100 Mbps	5700 Vrms		Surface Mount	16-SOIC	100 V/ns		16-SOIC		5.5 V	2.25 V	2	General Purpose	-55 °C	125 °C	Unidirectional	25 ns	25 ns	Capacitive Coupling	1/1			4.5 ns
Texas Instruments ISO7821LLDWR	100 Mbps	5700 Vrms		Surface Mount	16-SOIC	100 V/ns	0.295 in	16-SOIC	7.5 mm	5.5 V	2.25 V	2	General Purpose	-55 °C	125 °C	Unidirectional	25 ns	25 ns	Capacitive Coupling	1/1			4.5 ns
Texas Instruments ISO7821LLSDWW	100 Mbps	5700 Vrms		Surface Mount	16-SOIC	100 V/ns		16-SOIC		5.5 V	2.25 V	2	LVDS	-55 °C	125 °C	Unidirectional	25 ns	25 ns	Capacitive Coupling	1/1			4.5 ns	1.38 ns	1.38 ns
Texas Instruments ISO7821LLEVM													Interface													Digital Isolator	2-Channel (Dual)	ISO7821LL	Board(s)
Texas Instruments ISO7821LLSDW	150 Mbps	5700 Vrms		Surface Mount	16-SOIC	100 V/ns	0.295 in	16-SOIC	7.5 mm	5.5 V	3 V	2	General Purpose	-55 °C	125 °C	Unidirectional	25 ns	25 ns	Capacitive Coupling	1/1

Pricing

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

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 9.00
		10	$ 8.13
		45	$ 7.75
		135	$ 6.73
		270	$ 6.42
		540	$ 5.86
		1035	$ 5.10
Texas Instruments	TUBE	1	$ 7.56
		100	$ 6.62
		250	$ 4.64
		1000	$ 3.74

Description

General part information

ISO7821LLS Series

The ISO7821LLS device is a high-performance, isolated dual-LVDS buffer with 8000-VPKisolation voltage. This device provides high electromagnetic immunity and low emissions at low-power consumption, while isolating the LVDS bus signal. Each isolation channel has an LVDS receive and transmit buffer. Timing performance for the ISO7821LLS device is optimized for use with communication systems that use DC-balanced data streams which is achieved through an internal distortion correction scheme.

The ISO7821LLS device has one forward and one reverse-direction channel.

Through innovative chip design and layout techniques, the electromagnetic compatibility of the ISO7821LLS device has been significantly enhanced to ease system-level ESD, EFT, surge, and emissions compliance.

Documents

Technical documentation and resources

Industrial Automation Solutions Guide

Datasheet

Isolation Glossary

TUV Certificate for Isolation Devices (Rev. K)

Certificate

ISO782 1 x High-Performance, 8000VPK Reinforced Dual Channel Digital Isolator datasheet (Rev. H)

Data sheet

Considerations for Selecting Digital Isolators

Application brief

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

White paper

Isolation in AC Motor Drives: Understanding the IEC 61800-5-1 Safety Standard (Rev. A)

Functional safety information

Pushing the envelope with high-performance digital-isolation technology (Rev. A)

Analog Design Journal

Distance Through Insulation: How Digital Isolators Meet Certification Requiremen

White paper

ISO7821DWW

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ISO7821DWW

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Technical Specifications

ISO7821LLS Series

Pricing

Description

ISO7821LLS Series

Documents

Industrial Automation Solutions Guide

Isolation Glossary

TUV Certificate for Isolation Devices (Rev. K)

ISO782 1 x High-Performance, 8000VPK Reinforced Dual Channel Digital Isolator datasheet (Rev. H)

Considerations for Selecting Digital Isolators

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

Isolation in AC Motor Drives: Understanding the IEC 61800-5-1 Safety Standard (Rev. A)

Digital Isolator Design Guide (Rev. G)

CQC Certificate for ISOxxDWx (Rev. J)

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

CSA Certificate for ISO78xxDWx

Universal Digital Isolator Evaluation Module

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

Circuit Board Insulation Design According to IEC60664 for Motor Drive Apps

Why are Digital Isolators Certified to Meet Electrical Equipment Standards?

Pushing the envelope with high-performance digital-isolation technology (Rev. A)

Distance Through Insulation: How Digital Isolators Meet Certification Requiremen

ISO7821LLS Series