ISO7241A Status: ACTIVE

Quad Channel, 3/1, 1Mbps, Digital Isolator

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Datasheet

1-Mbps QUAD DIGITAL ISOLATORS (Rev. B) (iso7241a.pdf, 727 KB)
12 Dec 2008 Download

	ISO7241A	ISO7241C	ISO7241M
Number of Channels	4	4	4
Channel Configuration	3/1	3/1	3/1
Insulation Rating(VRMS)	2500	2500	2500
Supply Voltage(s)(V)	3.3, 5	3.3, 5	3.3, 5
Datarate(Mbps)	1	25	150
Input Noise Filter	Yes	Yes	None
Prop Delay(Max)(ns)	80	42	22
TTL/CMOS Input Threshold	TTL	TTL	CMOS
Footprint	ADuM1401	ADuM1401	ADuM1401
Rating	Catalog	Catalog	Catalog
Operating Temp Range(Celsius)	-40 to 125	-40 to 125	-40 to 125
Approx. Price (US$)	2.40 \| 100u	3.65 \| 100u	5.15 \| 100u
Pin/Package	16SOIC	16SOIC	16SOIC
Thermal Shutdown	No	No	No
	Samples	Samples	Samples
	Inventory	Inventory	Inventory

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ADS7845: 5-wire Touch Screen Controller
TPS62111: 3.3-V, 1.5-A, 17-V Vin Step-Down Converter in QFN-16
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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
4 kV ESD Protection
Operate With 3.3-V or 5-V Supplies
Typical 25-Year Life at Rated Working Voltage
(See Application Note (SLLA197 ) and Figure 10)
High Electromagnetic Immunity
(See Application Report (SLLA181))
-40°C to 125°C Operating Range
APPLICATIONS
- Industrial Fieldbus
- Computer Peripheral Interface
- Servo Control Interface
- Data Acquisition

Description

See the section. The ISO7240A, ISO7241A and ISO7242A are quad-channel digital isolators with multiple channel configurations and output enable functions. These devices have logic input and output buffers separated by TI's silicon dioxide (SiO₂) isolation barrier. Used in conjunction with isolated power supplies, these devices block high voltage, isolate grounds, and prevent noise currents from entering the local ground and interfering with or damaging sensitive circuitry.

The ISO7240A has all four channels in the same direction while the ISO7241A has three channels the same direction and one channel in opposition. The ISO7242A has two channels in each direction.

The devices have TTL input thresholds and a noise-filter at the input that prevents transient pulses from being passed to the output of the device.

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, the input is assumed to be unpowered or not being actively driven, and the failsafe circuit drives the output to a logic high state. (See ISO7240CF (SLLS869) or contact TI for a logic low failsafe option).

These devices may be powered from either 3.3-V or 5-V supplies on either side in any 3.3-V / 3.3-V, 5-V / 5-V, 5-V / 3.3-V, or 3.3-V / 5-V combination. Note that the signal input pins are 5-V tolerant regardless of the voltage supply level being used.

These devices are characterized for operation over the ambient temperature range of -40°C to 125°C.

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
ISO7241ADW	ACTIVE	-40 to 125	2.40 \| 100u	SOIC (DW) \| 16	View	40 \| TUBE
ISO7241ADWG4	ACTIVE	-40 to 125	2.40 \| 100u	SOIC (DW) \| 16	View	40 \| TUBE
ISO7241ADWR	ACTIVE	-40 to 125	2.40 \| 100u	SOIC (DW) \| 16	View	2000 \| LARGE T&R	Purchase Samples
ISO7241ADWRG4	ACTIVE	-40 to 125	2.40 \| 100u	SOIC (DW) \| 16	View	2000 \| LARGE T&R			Purchase Samples

* 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

	TI Inventory Status			Reported Distributor Inventory
ISO7241ADW	As of 10:03 AM GMT, 09 Jan 2009			As of 10:03 AM GMT, 09 Jan 2009
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	160 \| 30 Jan	8 Weeks	Americas	Mouser Electronics	541
		117 \| 2 Feb		Americas	Newark	50
		200 \| 3 Mar		Europe	Spoerle	40
		>10k \| 10 Mar
ISO7241ADWG4	As of 10:03 AM GMT, 09 Jan 2009			As of 10:03 AM GMT, 09 Jan 2009
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	160 \| 30 Jan	8 Weeks	None Reported View Distributors
		117 \| 2 Feb
		200 \| 3 Mar
		>10k \| 10 Mar
ISO7241ADWR	As of 10:03 AM GMT, 09 Jan 2009			As of 10:03 AM GMT, 09 Jan 2009
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 9 Mar	10 Weeks	None Reported View Distributors
ISO7241ADWRG4	As of 10:03 AM GMT, 09 Jan 2009			As of 10:03 AM GMT, 09 Jan 2009
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 9 Mar	10 Weeks	None Reported View Distributors
View all Distributors

* Our information is updated daily, so please check back with us soon if this does not meet your needs. You may also contact your TI Authorized Distributor , including those listed above, for real time stock information.

** 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
ISO7241ADW	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
ISO7241ADWG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
ISO7241ADWR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
ISO7241ADWRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 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

Datasheets

1-Mbps QUAD DIGITAL ISOLATORS (Rev. B) (iso7241a.pdf, 727 KB)
12 Dec 2008 Download

Application Notes

Shelf-Life Evaluation of Lead-Free Component Finishes (szza046.htm, 8 KB)
24 May 2004 Abstract
Thermal and Electrical Properties of Selected Packaging Materials (sbfa010.htm, 8 KB)
04 Oct 2000 Abstract

View Application Notes for Isolators

User Guides

Triple- and Quad-Channel Digital Isolator EVM (slau253.htm, 8 KB)
06 Jun 2008 Abstract

Simulation Models

IBIS Model
- ISO7241_3 IBIS Model (sllc340.ibs, 34 KB)
  14 Jul 2008 ibis
- ISO7241_35 IBIS Model (sllc342.ibs, 72 KB)
  14 Jul 2008 ibis
- ISO7241_5 IBIS Model (sllc341.ibs, 41 KB)
  14 Jul 2008 ibis
- ISO7241_53 IBIS Model (sllc343.ibs, 72 KB)
  14 Jul 2008 ibis

Tools & Software

Name	Part #	Company	Tool / Software Type
IO723X724XEVM Evaluation Module	ISO723X724XEVM	Texas Instruments	Development Boards/EVMs

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