{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ADUM5403ARWZ","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"ADUM5403ARWZ","canonicalUrl":"https://icboms.com/analog-devices/ADUM5403ARWZ","factsUrl":"https://icboms.com/api/mcp/products/ADUM5403ARWZ","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices ADUM5403ARWZ, IsoPower® iCoupler® series, general-purpose digital isolator with integrated isolated DC-DC converter, 2500Vrms isolation, 1Mbps data rate, 4 unidirectional channels, 3V to 5.5V supply, -40°C to 105°C, 16-SOIC wide body.","salesMarkdown":"## What the isoPower integration means for your BOM The ADUM5403ARWZ is a 4-channel, unidirectional digital isolator from Analog Devices' IsoPower and iCoupler families. What sets it apart from a plain isolator is the integrated DC-DC converter: it generates an isolated output rail on the secondary side, so you don't need a separate isolated supply module or a transformer driver. That saves board area and cuts the component count in a multi-channel isolated interface — think PLC digital input modules, motor encoder feedback links, or RS-485/RS-422 isolation where the bus side needs its own power. The part is rated for 2500 Vrms isolation, which covers basic functional isolation in 24 V industrial systems and reinforced isolation in many medical and instrumentation applications. The 1 Mbps data rate is enough for most fieldbus and sensor interfaces (Profibus, Modbus at 115.2 kbps, or encoder pulse trains up to a few hundred kHz) but not for high-speed video or Gigabit Ethernet — that's not what this part is for. ## 25 kV/µs CMTI — why it matters on a motor drive Common-mode transient immunity of 25 kV/µs (minimum) means this isolator can reject the fast voltage slew that couples across the barrier when an IGBT switches at 10–20 kV/µs. If you've ever seen a data glitch on an isolated SPI link that correlates with the PWM switching edge, the CMTI number is what fixes it. The ADUM5403ARWZ's 25 kV/µs rating is competitive for industrial drives and inverters. ## Channel configuration and timing Four unidirectional channels with a 1/3 input-side/side-2 split: one channel goes from the primary to the secondary, three go from the secondary back to the primary. That's a natural fit for an SPI-like interface where you have one data line out and three back (MISO, plus maybe a couple of status or fault lines), or for a UART with TX, RX, and two handshake signals. Propagation delay is 100 ns max in either direction, and pulse-width distortion is 40 ns max — tight enough for synchronous serial links at 1 Mbps. Rise and fall times are 2.5 ns typical, which keeps the signal edges clean without excessive ringing — important when the trace from the isolator to the connector is a few centimetres long. ## Package and footprint The wide body provides the creepage distance needed for the 2500 Vrms isolation rating — don't substitute a narrow SOIC footprint. The part is surface-mount only, so plan for reflow or selective solder.","metaTitle":"ADUM5403ARWZ Digital Isolator, 2500Vrms, 1Mbps, SOIC-16","metaDescription":"ADUM5403ARWZ general-purpose digital isolator with integrated isoPower DC-DC converter.","metaKeywords":null},"attributes":{"series":"IsoPower®, iCoupler®","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Digital Isolators"],"specifications":{"Type":"General Purpose","Series":"IsoPower®, iCoupler®","Package":"Tube","Data Rate":"1Mbps","Technology":"Magnetic Coupling","Channel Type":"Unidirectional","Mounting Type":"Surface Mount","Isolated Power":"Yes","Package / Case":"16-SOIC (0.295\\\", 7.50mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"3V ~ 5.5V","Number of Channels":"4","Voltage - Isolation":"2500Vrms","Operating Temperature":"-40°C ~ 105°C","Inputs - Side 1/Side 2":"1/3","Rise / Fall Time (Typ)":"2.5ns, 2.5ns","Supplier Device Package":"16-SOIC","Pulse Width Distortion (Max)":"40ns","Propagation Delay tpLH / tpHL (Max)":"100ns, 100ns","Common Mode Transient Immunity (Min)":"25kV/µs"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$13.11","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$13.11000","currency":"USD"},{"qty":10,"price":"$12.04700","currency":"USD"},{"qty":25,"price":"$11.54720","currency":"USD"},{"qty":100,"price":"$10.17410","currency":"USD"},{"qty":250,"price":"$9.67480","currency":"USD"},{"qty":500,"price":"$9.05060","currency":"USD"},{"qty":1000,"price":"$8.30159","currency":"USD"}]},"links":{"datasheetUrl":"https://www.analog.com/media/en/technical-documentation/data-sheets/ADuM5401_5402_5403_5404.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is ADUM5403ARWZ RoHS compliant?","answer":"Yes, the ADUM5403ARWZ is ROHS3 compliant, covering the latest RoHS exemption categories."},{"question":"What is the data rate of ADUM5403ARWZ?","answer":"The ADUM5403ARWZ supports a data rate of 1 Mbps per channel."},{"question":"Does ADUM5403ARWZ require an external transformer?","answer":"No. The ADUM5403ARWZ integrates an isoPower DC-DC converter that generates the isolated secondary-side power internally. No external transformer or separate isolated supply module is needed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/ADUM5403ARWZ","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/ADUM5403ARWZ when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}