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Data and Power Isolation (Design Conference 2013)

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Isolation is an integral part of many modern applications from medical to instrumentation to industrial. Most applications require the designer to integrate isolation in the design while improving …

Isolation is an integral part of many modern applications from medical to instrumentation to industrial. Most applications require the designer to integrate isolation in the design while improving performance, saving board space, increasing reliability levels, reducing power consumption, and, of course, cutting cost. This session provides an understanding of various isolator technologies, and offers suggestions on how to address such stringent design objectives.

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  • 1. Data and Power IsolationAdvanced Techniques of Higher Performance Signal Processing
  • 2. Legal Disclaimer Notice of proprietary information, Disclaimers and Exclusions Of WarrantiesThe ADI Presentation is the property of ADI. All copyright, trademark, and other intellectual property andproprietary rights in the ADI Presentation and in the software, text, graphics, design elements, audio and all othermaterials originated or used by ADI herein (the "ADI Information") are reserved to ADI and its licensors. The ADIInformation may not be reproduced, published, adapted, modified, displayed, distributed or sold in any manner, inany form or media, without the prior written permission of ADI.THE ADI INFORMATION AND THE ADI PRESENTATION ARE PROVIDED "AS IS". WHILE ADI INTENDS THE ADIINFORMATION AND THE ADI PRESENTATION TO BE ACCURATE, NO WARRANTIES OF ANY KIND ARE MADEWITH RESPECT TO THE ADI PRESENTATION AND THE ADI INFORMATION, INCLUDING WITHOUT LIMITATIONANY WARRANTIES OF ACCURACY OR COMPLETENESS. TYPOGRAPHICAL ERRORS AND OTHERINACCURACIES OR MISTAKES ARE POSSIBLE. ADI DOES NOT WARRANT THAT THE ADI INFORMATION ANDTHE ADI PRESENTATION WILL MEET YOUR REQUIREMENTS, WILL BE ACCURATE, OR WILL BEUNINTERRUPTED OR ERROR FREE. ADI EXPRESSLY EXCLUDES AND DISCLAIMS ALL EXPRESS AND IMPLIEDWARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT OFANY THIRD PARTY INTELLECTUAL PROPERTY RIGHTS. ADI SHALL NOT BE RESPONSIBLE FOR ANY DAMAGEOR LOSS OF ANY KIND ARISING OUT OF OR RELATED TO YOUR USE OF THE ADI INFORMATION AND THE ADIPRESENTATION, INCLUDING WITHOUT LIMITATION DATA LOSS OR CORRUPTION, COMPUTER VIRUSES,ERRORS, OMISSIONS, INTERRUPTIONS, DEFECTS OR OTHER FAILURES, REGARDLESS OF WHETHER SUCHLIABILITY IS BASED IN TORT, CONTRACT OR OTHERWISE. USE OF ANY THIRD-PARTY SOFTWAREREFERENCED WILL BE GOVERNED BY THE APPLICABLE LICENSE AGREEMENT, IF ANY, WITH SUCH THIRDPARTY.©2013 Analog Devices, Inc. All rights reserved.2
  • 3. Today’s AgendaWhat Problem Are We Solving?Insulation Characteristics and Isolation RequirementsDiscussion of Safety Certifications System Level Component LevelAdvantages of iCoupler Products over OptocouplersApplication Examples Isolated DC-to-DC Converters Isolated Half-Bridge Gate Drivers3
  • 4. Problem to Be Solved4Hazardous voltages exist at many points within industrial andconsumer locationsPeople and equipment must be protected from long-term potentialdifferences and temporary overvoltage conditions (faults)Local and global regulations mandate safety
  • 5. Problem to Be Solved5Example: Industrial motors often switched with hundreds of voltsLow voltage control system must interact with high voltage mains tosafely operate the motorIEC standard 61800-5-1 governs safety requirements for adjustablespeed electrical power drive systems
  • 6. What Is Isolation? Why Is it Needed?Electrical isolation required in many applications Safety Protect users from shock Protect equipment from shock Performance Eliminate ground loops Provide fault tolerance Segregate noiseCircuitry must communicate and/or provide power across anisolation barrier Maintain Isolation No current flow (or very little) High Performance Voltage ratings, power, timing, reliability6
  • 7. Insulation Characteristics andIsolation Requirements
  • 8. Types of IsolationFunctional Isolation Circuit Functionality only, not for protection Elimination of Ground Loops and Noise Fault ToleranceSafety Isolation Protects People or Other Equipment from Shock Basic Insulation – protection from electric shock Supplemental Insulation – independent insulation in a system to protect fromfaults Double Insulation – both basic and supplemental applied together Reinforced Insulation – a single insulation system demonstrated to beequivalent to double insulation8
  • 9. Reinforced InsulationDouble insulation is created with independent basic andsupplemental insulation applied to the same interface This is not always practical when high precision or high speed signals need topass across the isolation barrier Analog degradation and digital timing errors accumulate with each barriercrossingReinforced insulation allows a single insulation system to beclassified as robust as double insulation Components may need to meet additional structural requirements Minimum thickness of solid insulation Multiple layers of film insulation Increased creepage and clearance Additional type testing during qualification Thermal cycling Surge Additional assembly line tests Partial discharge9
  • 10. Parameters that Characterize IsolationInsulation Grade• Basic• Supplementary• ReinforcedWorking Voltage Across a Barrier• Distance along surface to protect from tracking (creepage)• Insulation lifetimeTransient Voltage• Distance through air that would prevent arcing (clearance)• Distance through Insulation (internal clearance)• Distance along material boundaries• Breakdown threshold of the insulationEnvironment of the Application• Type of contamination at the isolation barrier• Air pressure range (altitude of operation)1020umPolyimideIsolation
  • 11. Creepage and Clearance for IC PackagesWide SO-16 Package Creepage 7.6mm Clearance >8mmCreepage Shortest distance across asurface between conductive parts Package limitation is the endClearance Shortest distance through the airbetween conductive parts Board limited by pads < package117.6mmBoard and Package Have Different MeasurementsWhen Combined the Minimum Sets the System Limit
  • 12. Insulation LifetimeTesting Is Time Consuming Accelerated testing (above maximum working voltage) must be used Models are used to extrapolate lifetime from shorter term dataNone of the Standards Effectively Addresses Coupler Lifetime Only VDE has something that is intended to simulate a life test and it is a passfail under a set of test conditions Not useful for real verification of lifetimeManufacturers Test Their Own Parts Digital isolators use 2 types of insulating materials (polyimide and SiO2) Understand the wear out mechanisms for both materials Continue to test to better understand wear out and lifetime characteristics12
  • 13. Safety Certifications
  • 14. Goals of a Safety StandardApplication of a safety standard is intended to reduce the risk ofinjury or damage due to the following Electric shock Energy related hazards Fire Heat related hazards Mechanical Hazards Radiation Chemical hazards14
  • 15. Standards Bodies and AgenciesStandards Bodies Develop the Master Standard for a System orComponent IEC – International Electrical Commission – Worldwide UL – Underwriters Laboratories – North America VDE – in Europe For electrical safety, rules seem to be harmonizing with IECRegional Standards Bodies Interpret worldwide standards for application to the local region Local line voltage requirements Infrastructure specific modifications (power quality) Environmental differences (altitude in China, humidity in Brazil) Political leverageTest Agencies Provide testing and certification services15
  • 16. Types of StandardsMost Common Systems Level Standards Determine components specs based on system requirements IEC 60664-1: Insulation Coordination IEC 60950-1: Information Systems IEC 60601-1: Medical Equipment IEC 61010-1: Instrumentation IEC 61800-5: Motor Drives and InvertersPiece Part Level Standards Certify that components meet the manufacturers safety specifications, notcertify to application requirements UL 1577: Used for All Isolators IEC 60747-5: Optocoupler Isolators VDE 0884-10: Nonoptocoupler Isolators – Reinforced Only16
  • 17. System and Component StandardsAll system level standards address safetyisolation so that requirements for the systemcan be used to evaluate componentsSystem level specs can put unrealisticrequirements on the internal construction ofcomponentsIf a component standard exists, itsupersedes the requirements of the systemstandard Certified components can be treated as black boxesinternally17IEC61010-1System LevelVDE-0884-10Component Level
  • 18. CB Certifications and China (CCC)Each IEC Standard Is Tailored to Its Market Segment For the safety standards the world is harmonizing quickly In most parts of the world if you have a certification for the end product at one ofthe larger testing organizations like TUV it will be applicable over most of theworld There are still testing and regulatory differencesCB Certification Reviews Your Certification Against All of the OtherFlavors of the Same Standard and Reconciles the Differences At the piece part level it was optional to get a CB cert until recently China has issued their own set of standards, which are nearly identical to IECstandards with a few local differences such as high altitude requirements. The CB certification allows a manufacturer to get the CCC version of thecertification with little or no test. CCC does not recognize external versions of the standards CCC also requires direct inspection of manufacturing facilities periodically This is costly to set up, but is required for all CCC certifications18
  • 19. iCoupler Products Meet Many System andComponent Standards19www.analog.com/icoupler  Safety and Regulatory Compliance
  • 20. Advantages of iCoupler Productsover Optocouplers
  • 21. Optocoupler TechnologySignal Isolator of Choice for Decades The standard for low-cost isolationGaAs or GaAlAs LEDs Emit Light When CurrentPasses Through It 5‒20mA typically used Speed is directly correlated to currentPhotodetector Absorbs Light and Turns It into CurrentCurrent Transfer Ratio (CTR) Defines Performance21LEDPhotodetectorAdditional Isolation forHigher Performance
  • 22. Advantages of iCoupler Technology overOptocouplersPerformance 4× improvement in data rate and timing specificationsIntegration Multiple isolation channel integrated with other functions reduces size and costPower Consumption Operates at levels up to 90% lower than optocouplersEase of Use Standard digital CMOS interfaces means no external components needed toconnect to other digital devicesReliability Eliminate LEDs used in optocouplers22
  • 23. Performance Benefits – Data Rate and Timing23High SpeedMedium SpeedParameterAnalog DevicesADuM128xCRiCouplerOptocoupler 1 Optocoupler 2Max. Data Rate (Mbps) 100 25 50Prop. Delay (ns) 24 40 22Part to Part Match (ns) 9 20 16Pulse Width Distortion (ns) 2 6 2ParameterAnalog DevicesADuM128xBRDual iCouplerDualOptocouplerMax. Data Rate (Mbps) 25 10Prop. Delay (ns) 35 100Part to Part Match (ns) 12 40Channel-to-Channel Match (ns) 6 UnspecifiedPulse Width Distortion (ns) 3 35
  • 24. Integration Benefits – 30%–60% Cost/SizeReduction vs. Optocoupler Solution24Component Count: 3Board Area: 160 sq. mmTotal Cost: $2.55ADuM1401B: $2.40Discretes (2): $0.03Placement Costs: $0.12Component Count: 18Board Area: 425 sq mmTotal Cost: $5.75Opto (2): $2.50Dual Opto: $2.50Discretes (15): $0.21Placement Costs: $0.54C2C110mm16 mmDataConverter DataConverterR5R6R7R8D1D2C2C325mm17 mmD4R7R1R2R3R4D3C1Vendor-recommendedInterface CircuitADuM1401DualOptoOptoOpto(10K OEM pricing)iCoupler Solution Optocoupler Solution
  • 25. Wide Array of Integration Possibilities25Isolated Data Channels 1–6 channels Options for speed, temp, and ACQ-100isoPower Isolated dc-to-dc power and data in 1 package Up to 500 mW isolated powerCommunications USB  I2C  SPI RS-485  RS-232  CANGate Drivers Half-bridge MOSFET drivers Gate drivers with isoPowerIsolated - ADCs 16-bitIsolated Energy Metering
  • 26. Over a Decade of Innovation and Reliability26
  • 27. 11010010000.01 0.1 1 10 100PowerConsumption(mW)Data Rate (Mbps)Power Consumption Benefits –Up to 90% Reduction vs. Optocouplers27Reduced Heat DissipationImproved ReliabilityReduced Performance VariationReduced Cost
  • 28. Ease of Use AdvantagesPerceived Strength of Optocouplers Is Low Cost Inexpensive components don’t mean an inexpensive solution28Design Constraints Downside of Optocouplers Upside of iCoupler Tech.Board Layout Multiple components needed Single componentInterface to OtherComponentsComplex application circuits for eachinstanceStandard TTL or CMOSPower SupplyIncreases need for more expensivepower suppliesPower supply flexible to budgetTiming/BandwidthRequirementsPay for higher performing componentsOR can’t meet requirementsComponents flexible to meetrequirementsTemperatureDesign considerations needed toaccount for current transfer ratio(CTR)No CTR; stable operation overtemperatureSystem CostLack of integrated features drives upsystem costComplete, integrated solutionslimit overall BOM cost
  • 29. Reliability and Quality BenefitsSingle Digit ppm and Automotive Qualification29iCoupler Products Have the Same Safety Approvals asHigh Quality Optocouplers (UL, CSA, VDE)100% Production Testing Is Performed at up to 6 kV rmsParameter OptocouplersAnalog DevicesiCoupler ProductsiCoupler TechnologyBenefitsActive DevicesLEDs, Photodiodes,(Silicon Transistors)0.6 micron CMOS No LED Wearout FIT Rate <10InsulationDiscrete,Assembly-LevelPolyimide,Wafer-Level Semiconductor clean-roomenvironment, control, andconsistencyThermal Dissipation50 mW to 200 mWper channel1mW to 10 mW perchannel(data rates < 10 Mbps) Increased lifetime Negligible heating ofadjacent componentsSafety reports available at: www.analog.com/iCoupler
  • 30. Application Example:Isolated DC-to-DC Converter
  • 31. Design of an Isolated DC-to-DC Power SupplyLow power (<2.5 W) isolated DC-to-DCpower is used in many applications: Isolated USB interface Smart sensorFor most of these applications, thetypical technical requirements are: High isolation voltage: 2.5 kV rms to5.0 kV rms Low output voltage ripple: 1% of outputvoltage Excellent output voltage regulation: 1% overline and load Small size Long-term reliability: 20 to 50 years31
  • 32. Design of a 2.5 W Isolated DC-to-DC PowerSupplyThe Function of an Isolated DC-to-DC Converter: Provide a stable dc power supply to the secondary side Provide good load regulation and load transient response Closed-loop control is required to provide good load regulation and transientresponseTwo Main Topologies: Primary-side control: Output voltage information must be transferred from thesecondary side to the primary side. Secondary-side control: Output voltage is divided down and connected to asecondary-side controller. The switching control signals are then sent to theprimary side to control the switches.32
  • 33. Primary-Side Controller with an Optocoupler forIsolated Feedback from Secondary to PrimaryOptocoupler for feedback has many limitations CTR degradation over time can destabilize the loop Optocoupler added components waste power, add size and cost Slow loop response due to limited dynamic range of optocouplerA complicated multiorder RC network is needed tocompensate the loop33ControlLogicVINSWVOUTGND1GND2VREFType II or IIINetworkShunt Regulator(with Error Amp)Opto-CouplerController
  • 34. Limitations of a Primary-Side Sensing FlybackRegulatorThe output voltage information can be derived from the flybackvoltage, but the secondary diode voltage and its temperaturedependence can affect the output regulationNeed to design an external compensation network for the primary-side sensing controller, which adds complexity, size, and cost34VINGND1GND2VREFControlLogicControllerCompensationNetworkVFLYBACK ~= (VOUT + VDIODE)*(NPRI/NSEC)VDIODET1NPRI/NSECVOUT
  • 35. New Technology: Primary- and Secondary-SideControl for Isolated DC-to-DC Switching Regulator Optimizes Control with Integrated Feedback Secondary-side controller sends PWM signal to primary-side controller Easier to Design with than Optocoupler-Based Solutions All loop compensation is internal All feedback is internal with no optocoupler CTR degradation issues Faster More Accurate Output Output voltage is sensed on the output side35VINFBVOUTGND1 GND2VREFX1X2PrimaryControlLogicSecondaryControlLogicCompensationNetworkADuM3070
  • 36. ADuM3070 Isolated Switching Regulator2.5 W Isolated DC-to-DC Converter 80% EfficiencyIntegrated Secondary-Side andPrimary-Side Controllers Secondary-side sensing Isolated feedback to improvelight load efficiencyIntegrated Transformer DriverSoft Start and Thermal ShutdownRegulated Output Voltage Between 3.3 V to 30 VAdjustable Internal Oscillator Between 200 kHz and 1 MHz2500 V rms 1 Minute Withstand Isolation Rating16-Lead QSOP package–40°C to +105°C36ADuM307010437-001PRIMARYCONVERTER/DRIVER SECONDARYCONTROLLERINTERNALFEEDBACKVDD2OCFBVREGVDD1 VISOVDDAX2X1GND1 GND2REGRECT5V
  • 37. Comparing ADuM3070 with Primary-SideSensing Flyback RegulatorThe larger output ripple of the primary sensing flyback regulator isdue to the DCM (discontinuous conduction mode) control while theADuM3070 uses CCM (continuous conduction mode).The DCM mode allows the voltage on the output capacitor of theprimary sensing flyback to droop when the secondary current iszero in discontinuous mode.3740 mV p-p 500 kHz ripple 100 mV p-p 200 kHz ripple
  • 38. Accuracy of iCoupler Switching Regulator vs.Primary-Side Sensing Flyback3801020304050607080900 100 200 300 400 500Efficiency(%)Load Current (mA)EfficiencyFlybackADuM30704.974.984.995.005.015.025.0350 100 150 200 250 300 350 400 450 500OutputVoltage(V)Load Current (mA)Load RegulationFlyback SolutionADuM3070Solution4.904.924.944.964.985.005.025.04-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100OutputVoltage(V)Ambient Temperature ( C)Temperature PerformanceFlyback SolutionADuM3070 Solution
  • 39. Isolated DC-to-DC Switching RegulatorPortfolioIsolationRatingFunctionality Package StatusADuM347x 2.5 kV rms 4 Channel + Switching Regulator SSOP-20 ReleasedADuM3070 2.5 kV rms Switching Regulator Only QSOP-16 ReleasedADuM4070 5 kV rms Switching Regulator Only WSO-16 ReleasedADuM447x 5 kV rms 4 Channel + Switching Regulator WSO-20 ReleasedIsolated Switching Controllers Are Available with Digital Isolators –ADuM347x5 kV rms Reinforced Isolators in Certified 8 mm Creepage With and Without Quad Digital Isolators Also Available39
  • 40. Benefits of iCoupler Isolated SwitchingRegulatorsVersus Discrete Optocoupler-Based Regulated Solutions Less complicated design with internal feedback compensation Faster response Stable operation over lifetimeVersus Primary-Side Sensing More accurate Better response over temperature Faster responseVersus Discrete Power and Data Isolation Smaller size through higher levels of integration Higher efficiency than open loop designs with output regulators40
  • 41. Application Example:Isolated Half-Bridge Gate Drivers
  • 42. Fundamentals of Implementing an IsolatedHalf-Bridge Gate DriverTypical Application Secondary power supply for high voltage power supplies and inverters:42Strings ofPVPanels~ AC GridDC/DC Boost==DC/AC Inverter=~
  • 43. Function of an Isolated Half-Bridge Gate DriverTo drive the gates of high- and low-side N-channel MOSFETs (orIGBTs)To provide a low output impedance to reduce the conduction lossesHave a fast switching time to reduce the switching lossesThe high- and low-side drivers need very close matching of thetiming characteristics to allow accurate and efficient switchingThis reduces the dead-time from one switch of the half bridgeturning off before the second switch turns on43
  • 44. ApproachesHigh Voltage Half-Bridge Gate DriverOptocoupler Half-Bridge Gate DriverPulse Transformer Half-Bridge Gate DriverDigital Isolator Gate Driver44
  • 45. High Voltage Half Bridge Gate Driver Limitation #1: Only one isolated input channel, relying on the high voltagedriver to have the needed matching in the timing between channels, but thelevel shifter adds time delay between the channels Limitation #2: High voltage gate drivers do not have galvanic isolation andrely instead on junction isolation to separate the high-side drive voltagefrom the low-side drive voltage in the same IC Parasitic inductance in the circuit can cause the output voltage, VS, to go below groundduring a low-side switching event When this happens, the high side driver can latch-up and become permanently damaged45
  • 46. Optocoupler Half-Bridge Gate Driver2 optocouplers + 2 gate drivers = large solution sizeOptocouplers are discrete devices with limited in channel-to-channel matching Dead-time increases, adding to switching losses and reduced efficiencyIncreased optocoupler speed is based on increasing LEDcurrent, which reduces lifetime and consumes power46
  • 47. Pulse Transformer Half-Bridge Gate Driver An advantage of using a pulse transformer is that it does not requireisolated power supplies to drive the secondary side MOSFETs A potential problem in this application can occur when large transient gatedrive currents flow in the inductive coils, causing ringing Can switch the gate on and off when not intended, leading to damage of theMOSFETs Magnetic core and isolated windings of the pulse transformer require arelatively large package47
  • 48. Digitally Isolated Gate DriverUses a standard CMOS integrated circuit process with metal layersto form transformer coils separated by 20 µm of rugged polyimideinsulation Use in reinforced applications > 5 kV rms Isolation 50 year lifetime with 400 V rms working voltage and 700 V peak between theoutputs48
  • 49. ADuM3223 (3 kV rms) and ADuM4223 (5 kV rms)Half-Bridge Gate Drivers49Fast Timing <50 ns total propagation delay <5 ns delay matchingHigh Reliability 50 year lifetime for 400 V rmsworking voltage 125ºC OperationIntegral Features Up to 5 kV rms input-output isolation 700 V galvanic isolation betweenoutputs 4 A peak current drive 4.5 V to 18 V output range Disable pin UVLO on VDDA and VDDB Thermal shutdownImproves the Performance andEfficiency of: AC/DC power supplies DC/DC power supplies Solar inverters Motor controlVOBVOAVDDBVSSAVDDAVSSBVIAVIBVDis
  • 50. Importance of Common-Mode TransientImmunity (CMTI) in High Voltage Gate DriversIn half-bridge gate driver applications for high voltage powersupplies, very fast transients can occur across the switchingMOSFETsA large dV/dt across the isolation barrier has the potential to causelogic transition errorsOptocouplers have very sensitive receivers to detect the lighttransmitted across their isolation barrier, and their outputs can beupset by large common mode transientsOptocouplers are only immune up to 25 kV/µs50
  • 51. Capacitor-Based Digital Isolator with CMTI< 25 kV/µsWith a 2-terminal device the signal frequencies need to be wellabove the expected frequency of the noise so that the barriercapacitance presents low impedance to the signal and highimpedance to the noise When the common-mode noise level becomes large enough to overwhelm thesignal, it can cause a data upset at the isolator output51Capacitor-based digital isolatorwith CMTI of < 25 kV/µs2-terminal device:capacitor-based digital isolator
  • 52. Transformer-Based Digital Isolator with CMTI> 50 kV/µsDigital isolators with transformer isolation can deliver higher signallevels to their receivers and withstand >50 kV/µs without data errors Transformer-based isolators are 4-terminal devices with low differentialimpedance to the signal and high common-mode impedance to thenoise, which can yield excellent CMTI52Transformer-based digitalisolator with CMTI of >50 kV/µs4-terminal device:transformer-based digital isolator
  • 53. Benefits of Isolated Half-Bridge Gate DriversThe solution size and design complexity are dramaticallyreduced through integrationThis leads to improved timing performanceRobustness is also improved through galvanic isolationof the output drivers and higher CMTI53
  • 54. What Did We Cover Today?Discussed the need for galvanic isolation to provide safety and/orperformance benefitsReviewed insulation characteristics and physical characteristics ofisolators that are impacted by voltage requirementsExamined the differences between system level and componentlevel safety certificationsHighlighted the advantages of iCoupler digital isolators overoptocouplersDetailed two applications that benefit from the performancecharacteristics offered by digital isolators54
  • 55. Tweet it out! @ADI_News #ADIDC13Design Resources Covered in This SessionDesign Tools and Resources:Ask technical questions and exchange ideas onlinein our EngineerZone™ Support Community Choose a technology area from the homepage: ez.analog.com Access the Design Conference community here: www.analog.com/DC13community55Name Description URLIBIS Models Input-Output Buffer Interface Standard (IBIS) Models forSignal Integrity SimulationsiCoupler IBISModelsCircuitsfrom theLabH-Bridge Driver Circuit Using Isolated Half-Bridge Drivers CN0196Low Cost, 16-Bit, 250 kSPS, 8-Channel, Isolated DataAcquisition SystemCN0254Universal Serial Bus (USB) Cable Isolator Circuit CN0159Videos iCoupler Digital Isolator Video Library Video Library
  • 56. Tweet it out! @ADI_News #ADIDC13Selection Table of Products Covered TodayPartnumber DescriptionADuM3070 2.5 kV rms Isolated Switching Regulator with Integrated FeedbackADuM347x 2.5 kV rms Isolated Switching Regulator with Quad-Channel IsolatorsADuM4070 5.0 kV rms Isolated Switching Regulator with Integrated FeedbackADuM447x 5.0 kV rms Isolated Switching Regulator with Quad-Channel IsolatorsADuM3223 3.0 kV rms Isolated Precision Half-Bridge Driver, 4 A OutputADuM4223 5.0 kV rms Isolated Precision Half-Bridge Driver, 4 A Output56
  • 57. Tweet it out! @ADI_News #ADIDC13Visit the ezLINX Demo in the Exhibition RoomDesign Tool to Help CustomersDesign with ADI’s IsolatedTransceiver ProductsRapid Design and SystemEvaluation Isolated communication networksOpen-Source Hardware andSoftware Environment 8 different isolated physical layercommunication standards Isolated USB, RS-485, RS-422, CAN, RS-232, SPI, I2C andLVDSDemo Showing Live IsolatedCAN Network57This demo board is available for purchase:www.analog.com/DC13-hardware