ISO721M-EP Status: ACTIVE

Enhanced Product Single 150Mbps Digital Isolator

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Datasheet

3.3-V / 5-V High-Speed Digital Isolators (PDF 677 KB)
10 Jun 2008

Functional Block Diagram

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	ISO721M-EP
Number of Channels	1
Channel Configuration	1/0
Insulation Rating(VRMS)	1500
Supply Voltage(s)(V)	3.3,5
Datarate(Mbps)	150
Input Noise Filter	None
Prop Delay(Max)(ns)	16
TTL/CMOS Input Threshold	CMOS
Footprint	ADuM1100
Rating	HiRel Enhanced Product
Operating Temp Range(Celsius)	-55 to 125
Approx. Price (US$)	7.40 \| 100u
Pin/Package	8SOIC
Thermal Shutdown	No
	Samples
	Inventory

Other qualified versions of ISO721M-EP

Version	Part Number	Definition
Catalog	ISO721M	TI's standard catalog product

Product Information

Features

Controlled Baseline
- One Assembly Site
- One Test Site
- One Fabrication Site
Extended Temperature Performance of –55°C to 125°C
Enhanced Diminishing Manufacturing Sources (DMS) Support
Enhanced Product-Change Notification
Qualification Pedigree⁽¹⁾
4000-V_(peak) Isolation
- UL 1577, IEC 60747-5-2 (VDE 0884, Rev. 2) IEC 61010-1
- 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

⁽¹⁾ Component qualification in accordance with JEDEC and industry standards to ensure reliable operation over an extended temperature range. This includes, but is not limited to, Highly Accelerated Stress Test (HAST) or biased 85/85, temperature cycle, autoclave or unbiased HAST, electromigration, bond intermetallic life, and mold compound life. Such qualification testing should not be viewed as justifying use of this component beyond specified performance and environmental limits.
⁽²⁾ The signaling rate of a line is the number of voltage transitions that are made per second expressed in the units bps (bits per second).
SDS is a trademark of Honeywell.
DeviceNet is a trademark of Open Devicenet Vendors Association, Inc.

DESCRIPTION/ORDER INFORMATION

The ISO721, ISO721M, ISO722, and ISO722M are digital isolators with a logic input and output buffer separated by a silicon oxide (SiO₂) insulation barrier. This barrier provides galvanic isolation of up to 4000 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. If this dc-refresh pulse is not received for more than 4 µs, the input is assumed to be unpowered or not being actively driven, and the failsafe circuit drives the output to a logic high state.

The symmetry of the dielectric and capacitor within the integrated circuitry provides for close capacitive matching, and allows fast transient voltage changes between the input and output grounds without corrupting the output. The small capacitance and resulting time constant provide for fast operation with signaling rates⁽²⁾ from 0 Mbps (dc) to 100 Mbps for the ISO721/ISO722, and 0 Mbps to 150 Mbps with the ISO721M/ISO722M.

These devices require two supply voltages of 3.3 V, 5 V, or any combination. All inputs are 5-V tolerant when supplied from a 3.3-V supply and all outputs are 4-mA CMOS.

The ISO721 has TTL input thresholds and a noise-filter at the input that prevents transient pulses of up to 2 ns in duration from being passed to the output of the device.

The ISO721M has CMOS V_CC/2 input thresholds, but do not have the noise filter and the additional propagation delay. These features of the ISO721M also provide for reduced jitter operation.

The ISO721M is characterized for operation over the ambient temperature range of –55°C to 125°C.

Pricing / Packaging / CAD Design Tools / Samples

				Price	Packaging			Samples
Device	Status	Temp (^oC)	DSCC #	Price \| Quantity	Package \| Pins	Top Side Marking	Package QTY \| Package Carrier	Samples
ISO721MMDREP	ACTIVE	-55 to 125	V62/08627-01XE	7.40 \| 100u	SOIC (D) \| 8	View	2500 \| LARGE T&R	Contact TI Distributor or Sales Office
ISO721MMDREPG4	ACTIVE	-55 to 125		7.40 \| 100u	SOIC (D) \| 8	View	2500 \| LARGE T&R	Contact TI Distributor or Sales Office
V62/08627-01XE	ACTIVE	-55 to 125		7.40 \| 100u	SOIC (D) \| 8	View	2500 \| LARGE T&R	Contact TI Distributor or Sales Office

* 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 11:48 AM GMT, 08 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 20 WeeksISO721MMDREP
Americas	Arrow	>1k
	Avnet	>1k
Worldwide	DigiKey	>1k
TI Lead Time*: 20 WeeksISO721MMDREPG4
None Reported View Distributors
TI Lead Time*: 20 WeeksV62/08627-01XE
None Reported View Distributors
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
ISO721MMDREP	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
ISO721MMDREPG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
V62/08627-01XE	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	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 ISO721M-EP

Datasheet

3.3-V / 5-V High-Speed Digital Isolators (PDF, 677 KB)
10 Jun 2008

Application Notes

Thermal and Electrical Properties of Selected Packaging Materials (HTM, 8 KB) 15703 views
04 Oct 2000 Read Abstract
Shelf-Life Evaluation of Lead-Free Component Finishes (HTM, 8 KB) 26969 views
24 May 2004 Read Abstract
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28 Oct 2009 Read Abstract
Digital Isolator Design Guide (HTM, 8 KB) 2966 views
19 Dec 2008 Read Abstract

View Application Notes for Isolators

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ISO721M-EP Status: ACTIVE

Enhanced Product Single 150Mbps Digital Isolator

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Datasheet

Functional Block Diagram

Other qualified versions of ISO721M-EP

Product Information

Features

DESCRIPTION/ORDER INFORMATION

Pricing / Packaging / CAD Design Tools / Samples

Inventory

Quality & Lead (Pb)-Free Data

Technical Documents

Datasheet

Application Notes

Support and Community

Customer Tags

Other Support