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ISO7231A Status: ACTIVE

Triple Channel, 2/1, 1Mbps, Digital Isolator


      
         
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 ISO7231AISO7231C ISO7231M 
Number of Channels3  3  3  
Channel Configuration2/1  2/1  2/1  
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 FilterYes  Yes  None  
Prop Delay(Max)(ns)80  42  22  
TTL/CMOS Input ThresholdTTL  TTL  CMOS  
FootprintADuM1301  ADuM1301  ADuM1301  
RatingCatalog  Catalog  Catalog  
Operating Temp Range(Celsius)-40 to 125  -40 to 125  -40 to 125  
Approx. Price (US$) 1.50 | 1ku   2.45 | 1ku   3.50 | 1ku  
Pin/Package16SOIC  16SOIC  16SOIC  
Thermal ShutdownNo  No  No  
 SamplesSamplesSamples
 InventoryInventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • ISO7220A: Dual Channel, 2/0, 1Mbps Digital Isolator
  • ISO7240A: Quad Channel, 4/0, 1Mbps, Digital Isolator
  • ISO7230A: Triple Channel, 3/0, 1Mbps, Digital Isolator
  • UC2846: Current Mode PWM Controller
  • TPS51116: DDR1, DDR2, DDR3 Switcher and LDO
  • TPS51123: Dual-Synchronous, Step-Down Controller w/ Out-of-Audio Operation, 100-mA LDOs for Notebook Sys. Pwr

Product Information

Features

  • 1-Mbps Signaling Rate
    • Low Channel-to-Channel Output Skew;
      1 ns Maximum
    • Low Pulse-Width Distortion (PWD);
      2 ns Maximum
    • Low Jitter Content; 1 ns Typ at 150 Mbps
  • Typical 25-Year Life at Rated Working Voltage
    (See Application note SLLA197 and Figure 10)
  • 4000-Vpeak Isolation, 560-Vpeak VIORM
    • UL 1577, IEC 60747-5-2 (VDE 0884, Rev 2), IE 61010-1 and CSA Approved
  • 4 kV ESD Protection
  • Operate With 3.3-V or 5-V Supplies
  • High Electromagnetic Immunity
    (See Application note SLLA181)
  • -40°C to 125°C Operating Range
  • APPLICATIONS
    • Industrial Fieldbus
    • Computer Peripheral Interface
    • Servo Control Interface
    • Data Acquisition

Description

See the section. The ISO7230A and ISO7231A are triple-channel digital isolators each 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 on a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry.

The ISO7230 triple-channel device has all three channels in the same direction while the ISO7231 has two channels in one direction and one channel in opposition. These devices have an active-high output enable that when driven to a low level, places the output in a high-impedance state.

The ISO7230A and ISO7231A have 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.

In each device a periodic update pulse is sent across the isolation 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. (Contact TI for a logic low failsafe option).

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

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
ISO7231ADWACTIVE-40 to 1251.65 | 1kuSOIC (DW) | 16 View 40 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
ISO7231ADWG4ACTIVE-40 to 1251.65 | 1kuSOIC (DW) | 16 View 40 | TUBE  
ISO7231ADWRACTIVE-40 to 1251.50 | 1kuSOIC (DW) | 16 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
ISO7231ADWRG4ACTIVE-40 to 1251.50 | 1kuSOIC (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

Reported Distributor Inventory as of 11:48 AM GMT, 08 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 4 WeeksISO7231ADW
AsiaFarnell Asia 1
EuropeEBV Elektronik 1
WorldwideMouser Electronics 10
TI Lead Time*: 4 WeeksISO7231ADWG4
None Reported
View Distributors
TI Lead Time*: 20 WeeksISO7231ADWR
EuropeAvnet-SILICA >1k
TI Lead Time*: 20 WeeksISO7231ADWRG4
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 ContentDPPM / MTBF / FIT Rate
DeviceEco Plan* Lead / Ball FinishMSL Rating / Peak ReflowDetailsDetails
ISO7231ADW RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HRViewView
ISO7231ADWG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HRViewView
ISO7231ADWR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HRViewView
ISO7231ADWRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HRViewView

* 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 ISO7231A Help

Datasheet

Application Notes

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User Guides

Tools & Software

NamePart # Company Tool / Software Type
IO723X724XEVM Evaluation ModuleISO723X724XEVMTexas InstrumentsDevelopment Boards/EVMs

Customers Who Evaluated This Product Also Evaluated...
Part # Name Product Family Comments
ISO7220A Dual Channel, 2/0, 1Mbps Digital Isolator INTERFACE-ISOLATORS TI customers also evaluated this product.
ISO7240A Quad Channel, 4/0, 1Mbps, Digital Isolator INTERFACE-ISOLATORS TI customers also evaluated this product.
ISO7230A Triple Channel, 3/0, 1Mbps, Digital Isolator INTERFACE-ISOLATORS TI customers also evaluated this product.
UC2846 Current Mode PWM Controller AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS TI customers also evaluated this product.
TPS51116 DDR1, DDR2, DDR3 Switcher and LDO NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH) TI customers also evaluated this product.
TPS51123 Dual-Synchronous, Step-Down Controller w/ Out-of-Audio Operation, 100-mA LDOs for Notebook Sys. Pwr NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH) TI customers also evaluated this product.
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