{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ADUM131D1BRZ","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"ADUM131D1BRZ","canonicalUrl":"https://icboms.com/analog-devices/ADUM131D1BRZ","factsUrl":"https://icboms.com/api/mcp/products/ADUM131D1BRZ","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices ADUM131D1BRZ iCoupler, General Purpose, 3-Channel Digital Isolator, 150Mbps Data Rate, 3000Vrms Isolation, 1.7V ~ 5.5V Supply, -40°C ~ 125°C, 16-SOIC.","salesMarkdown":"The ADUM131D1BRZ is a 3-channel, unidirectional digital isolator from the iCoupler series, using magnetic coupling to transfer digital signals across a 3000 Vrms isolation barrier. With a 75 kV/µs minimum common-mode transient immunity, it is built for environments with fast voltage transients, such as motor drives, inverters, and industrial fieldbus nodes. ## 150 Mbps data rate and 3 ns pulse-width distortion — what they mean for signal integrity The 150 Mbps data rate supports most common serial protocols without stretching the timing budget. The 3 ns max pulse-width distortion means the output pulse width stays close to the input width, which matters for protocols like CAN or RS-485 where duty-cycle symmetry affects bit timing. The 13 ns max propagation delay (same for low-to-high and high-to-low) is symmetrical, so the part does not introduce a duty-cycle skew on its own. For a 50 MHz SPI clock, the 13 ns delay plus 2.5 ns rise/fall eats about 1.5 of the 20 ns period — still workable, but budget the remaining margin for PCB trace and load capacitance. ## 75 kV/µs CMTI — why it matters for motor-drive and inverter designs Common-mode transient immunity of 75 kV/µs (minimum) is the spec that keeps the output from glitching when a fast voltage transient slams across the isolation barrier. In a motor-drive application, the IGBT switching node can swing hundreds of volts in tens of nanoseconds, coupling a large dV/dt through the parasitic capacitance of the isolator. A part with lower CMTI would latch or toggle the output, causing spurious data. The ADUM131D1BRZ's 75 kV/µs rating handles that transient without corrupting the signal, so it is a good fit for gate-driver feedback, encoder interfaces, and isolated ADC reads in variable-frequency drives. The 16-SOIC narrow-body package (3.90 mm width) is a common footprint, so layout reuse across designs is straightforward. ## Lifecycle and sourcing reality No official second-source or pin-compatible alternate is listed, so dual-sourcing would require evaluating a different isolator family with matching channel count and speed.","metaTitle":"ADUM131D1BRZ iCoupler Digital Isolator, 150 Mbps, 3000 Vrms","metaDescription":"ADUM131D1BRZ 3-channel digital isolator with 150 Mbps data rate, 3000 Vrms isolation, 75 kV/µs CMTI. Active, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":"iCoupler®","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Digital Isolators"],"specifications":{"Type":"General Purpose","Series":"iCoupler®","Package":"Tube","Data Rate":"150Mbps","Technology":"Magnetic Coupling","Channel Type":"Unidirectional","Mounting Type":"Surface Mount","Isolated Power":"No","Package / Case":"16-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"1.7V ~ 5.5V","Number of Channels":"3","Voltage - Isolation":"3000Vrms","Operating Temperature":"-40°C ~ 125°C","Inputs - Side 1/Side 2":"2/1","Rise / Fall Time (Typ)":"2.5ns, 2.5ns","Supplier Device Package":"16-SOIC","Pulse Width Distortion (Max)":"3ns","Propagation Delay tpLH / tpHL (Max)":"13ns, 13ns","Common Mode Transient Immunity (Min)":"75kV/µs"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.57","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$3.57000","currency":"USD"},{"qty":10,"price":"$3.20400","currency":"USD"},{"qty":25,"price":"$3.02880","currency":"USD"},{"qty":100,"price":"$2.62510","currency":"USD"},{"qty":250,"price":"$2.49048","currency":"USD"},{"qty":500,"price":"$2.23470","currency":"USD"},{"qty":1000,"price":"$1.90500","currency":"USD"}]},"links":{"datasheetUrl":"https://www.analog.com/media/en/technical-documentation/data-sheets/ADuM130D_130E_131D_131E.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the data rate and isolation voltage for ADUM131D1BRZ?","answer":"The ADUM131D1BRZ supports a 150 Mbps data rate and provides 3000 Vrms isolation. It also features a 75 kV/µs minimum common-mode transient immunity."},{"question":"What are the alternatives to ADUM131D1BRZ?","answer":"No pin-compatible second source or direct replacement is listed in the component record. For a functionally similar part, look for another 3-channel, unidirectional digital isolator in a 16-SOIC package with 150 Mbps data rate and 3000 Vrms isolation, such as other iCoupler variants with matching channel configuration."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/ADUM131D1BRZ","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/ADUM131D1BRZ 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}}