ISO721 Status: ACTIVE

Single 100Mbps Digital Isolator

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Datasheet

3.3 V / 5 V High-Speed Digital Isolators (Rev. H) (PDF 783 KB)
23 Jul 2009

	ISO721	ISO721M	ISO722	ISO722M
Number of Channels	1	1	1	1
Channel Configuration	1/0	1/0	1/0	1/0
Insulation Rating(VRMS)	2500	2500	2500	2500
Supply Voltage(s)(V)	3.3, 5	3.3, 5	3.3, 5	3.3, 5
Datarate(Mbps)	100	150	100	150
Input Noise Filter	Yes	None	Yes	None
Prop Delay(Max)(ns)	24	16	24	16
TTL/CMOS Input Threshold	TTL	CMOS	TTL	CMOS
Footprint	ADuM1100	ADuM1100	ADuM1100	ADuM1100
Rating	Catalog	Catalog	Catalog	Catalog
Operating Temp Range(Celsius)	-40 to 125	-40 to 125	-40 to 125	-40 to 125
Approx. Price (US$)	1.40 \| 1ku	1.45 \| 1ku	1.40 \| 1ku	1.45 \| 1ku
Pin/Package	8SOIC, 8SOP	8SOIC	8SOIC	8SOIC
Thermal Shutdown	No	No	No	No
	Samples	Samples	Samples	Samples
	Inventory	Inventory	Inventory	Inventory

Other qualified versions of ISO721

Version	Part Number	Definition
Automotive	ISO721-Q1	Q100 devices qualified for high-reliability automotive applications targeting zero defects

Customers Who Evaluated This Product Also Evaluated

ISO1050: Isolated 5-V CAN Transceivers
ISO7220A: Dual Channel, 2/0, 1Mbps Digital Isolator
ISO721M: Single 150Mbps Digital Isolator
ISO124: Precision Lowest Cost Isolation Amplifier
ISO122: Precision Lowest Cost Isolation Amplifier
ISO121: Precision Low Cost Isolation Amplifier

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Product Information

Features

4000-V_(peak) Isolation, 560-V_peak V_IORM
- UL 1577, IEC 60747-5-2 (VDE 0884, Rev. 2)
  IEC 61010-1, IEC 60950-1 and CSA Approved
- 50 kV/µs Transient Immunity Typical
Signaling Rate 0 Mbps to 150 Mbps
- Low Propagation Delay
- Low Pulse Skew (Pulse-Width Distortion)
Low-Power Sleep Mode
High Electromagnetic Immunity
Low Input-Current Requirement
Failsafe Output
Drop-In Replacement for Most Opto and Magnetic Isolators
APPLICATIONS
- Industrial Fieldbus
  - Modbus
  - Profibus
  - DeviceNet Data Buses
  - Smart Distributed Systems (SDS)
- Computer Peripheral Interface
- Servo Control Interface
- Data Acquisition

View All Features in Datasheet

Description

The ISO721, ISO721M, ISO722, and ISO722M are digital isolators with a logic input and output buffer separated by a silicon dioxide (SiO₂) insulation barrier. This barrier provides galvanic isolation of up to 400 V. Used in conjunction with isolated power supplies, these devices prevent noise currents on a data bus or other circuits from entering the local ground, and interfering with or damaging sensitive circuitry.

A binary input signal is conditioned, translated to a balanced signal, then differentiated by the capacitive isolation barrier. Across the isolation barrier, a differential comparator receives the logic transition information, then sets or resets a flip-flop and the output circuit accordingly. A periodic update pulse is sent across the barrier to ensure the proper dc level of the output.

View All Description in Datasheet

Pricing / Packaging / CAD Design Tools / Samples

			Price	Packaging			CAD Design Tools		Samples
Device	Status	Temp (^oC)	Price \| Quantity	Package \| Pins	Top Side Marking	Package QTY \| Package Carrier	Symbols	Footprints	Samples
ISO721D	ACTIVE	-40 to 125	1.55 \| 1ku	SOIC (D) \| 8	View	75 \| TUBE
ISO721DG4	ACTIVE	-40 to 125	1.55 \| 1ku	SOIC (D) \| 8	View	75 \| TUBE
ISO721DR	ACTIVE	-40 to 125	1.40 \| 1ku	SOIC (D) \| 8	View	2500 \| LARGE T&R	Purchase Samples
ISO721DRG4	ACTIVE	-40 to 125	1.40 \| 1ku	SOIC (D) \| 8	View	2500 \| LARGE T&R	Purchase Samples
ISO721DUB	ACTIVE	-40 to 125	1.40 \| 1ku	SOP (DUB) \| 8		50 \| TUBE			Purchase Samples
ISO721DUBR	ACTIVE	-40 to 125	1.40 \| 1ku	SOP (DUB) \| 8		350 \| LARGE T&R

* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.

Inventory

Reported Distributor Inventory as of 11:55 AM GMT, 22 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 20 WeeksISO721D
Americas	Arrow	>1k
Americas	Rochester Electronics	39
Asia	WPI	106
Europe	Arrow Southern Europe	225
	Avnet-SILICA	25
	Spoerle	70
Worldwide	DigiKey	>1k
Worldwide	Mouser Electronics	219
TI Lead Time*: 20 WeeksISO721DG4
Asia	Farnell Asia	187
Europe	Farnell	97
Worldwide	DigiKey	Available
Worldwide	Mouser Electronics	440
TI Lead Time*: 20 WeeksISO721DR
Americas	Rochester Electronics	>1k
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksISO721DRG4
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksISO721DUB
None Reported View Distributors
TI Lead Time*: 20 WeeksISO721DUBR
Worldwide	DigiKey	795
View all Distributors

** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.

Quality & Lead (Pb)-Free Data

	Product Content				DPPM / MTBF / FIT Rate
Device	Eco Plan*	Lead / Ball Finish	MSL Rating / Peak Reflow	Details	Details
ISO721D	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
ISO721DG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
ISO721DR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
ISO721DRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
ISO721DUB	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-4-260C-72 HR	View	View
ISO721DUBR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-4-260C-72 HR	View	View

* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.

If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.

Technical Documents

Most useful technical documents for ISO721

Datasheet

3.3 V / 5 V High-Speed Digital Isolators (Rev. H) (PDF, 783 KB)
23 Jul 2009

Application Notes

Thermal and Electrical Properties of Selected Packaging Materials (HTM, 8 KB) 16050 views
04 Oct 2000 Read Abstract
Shelf-Life Evaluation of Lead-Free Component Finishes (HTM, 8 KB) 27231 views
24 May 2004 Read Abstract
High-Voltage Lifetime of the ISO72x Family of Digital Isolators (HTM, 8 KB) 1920 views
17 Jan 2006 Read Abstract
The ISO72x Family of High-Speed Digital Isolators (HTM, 8 KB) 3747 views
11 Jan 2006 Read Abstract
ISO72X Digital Isolator Magnetic-Field Immunity (Rev. A) (HTM, 8 KB) 2869 views
22 Feb 2006 Read Abstract
Isolated RS-485 Reference Design (HTM, 8 KB) 320 views
28 Oct 2009 Read Abstract
Digital Isolator Design Guide (HTM, 8 KB) 3034 views
19 Dec 2008 Read Abstract

View Application Notes for Isolators

User Guides

ISO72XEVM (HTM, 8 KB) 953 views
14 Jan 2006 Read Abstract

Solution Guides

Medical Update (PDF, 185 KB) 6671 views
05 May 2006

Tools & Software

Name	Part #	Company	Tool / Software Type
ISO72x Evaluation Module	ISO72XEVM	Texas Instruments	Development Boards/EVMs

Simulation Models

IBIS Model
- ISO721_35 IBIS Model (Multiple File Format) 285 views
  18 Jan 2006 Read Abstract
- ISO721_53 IBIS Model (Multiple File Format) 294 views
  18 Jan 2006 Read Abstract
- ISO721_5 IBIS Model (Multiple File Format) 301 views
  18 Jan 2006 Read Abstract
- ISO721_3 IBIS Model (Multiple File Format) 363 views
  18 Jan 2006 Read Abstract

Part #	Name	Product Family	Comments
DCP010505B	Miniature, 1W Isolated Unregulated DC/DC Converters	ISOLATED DC/DC CONVERTERS - 1 W AND 2 W MINIATURE
DCH010505D	Miniature, 1W, 3kVDC Isolated DC/DC Converters	ISOLATED DC/DC CONVERTERS - 1 W AND 2 W MINIATURE
ISO150	Dual, Isolated, Bi-Directional Digital Coupler	INTERFACE - ISOLATORS
Customers Who Evaluated This Product Also Evaluated...
ISO1050	Isolated 5-V CAN Transceivers	INTERFACE-ISOLATORS	TI customers also evaluated this product.
ISO7220A	Dual Channel, 2/0, 1Mbps Digital Isolator	INTERFACE-ISOLATORS	TI customers also evaluated this product.
ISO721M	Single 150Mbps Digital Isolator	INTERFACE-ISOLATORS	TI customers also evaluated this product.
ISO7421	Dual Channel, 1/1, 200Mbps Digital Isolator	INTERFACE-ISOLATORS	TI customers also evaluated this product.
ISO15	Isolated 3.3-V Full & Half-Duplex RS-485 Transceivers	INTERFACE-ISOLATORS	TI customers also evaluated this product.
ISO150	Dual, Isolated, Bi-Directional Digital Coupler	INTERFACE-ISOLATORS	TI customers also evaluated this product.
ISO7240A	Quad Channel, 4/0, 1Mbps, Digital Isolator	INTERFACE-ISOLATORS	TI customers also evaluated this product.
ISO124	Precision Lowest Cost Isolation Amplifier	AMPLIFIERS AND LINEAR-ISOLATION AMPLIFIER	TI customers also evaluated this product.
ISO122	Precision Lowest Cost Isolation Amplifier	AMPLIFIERS AND LINEAR-ISOLATION AMPLIFIER	TI customers also evaluated this product.
ISO121	Precision Low Cost Isolation Amplifier	AMPLIFIERS AND LINEAR-ISOLATION AMPLIFIER	TI customers also evaluated this product.
Isolated DC/DC Converter Selection Guide

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ISO721 Status: ACTIVE

Single 100Mbps Digital Isolator

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