What this iCoupler digital isolator does on your board
It provides 2500Vrms of galvanic isolation between two power domains, passing digital signals at up to 1Mbps while blocking ground loops and common-mode noise. The 16-SOIC wide-body package (7.50mm body width) gives the creepage distance needed to maintain the isolation rating across the barrier.
2500Vrms isolation and 25kV/µs CMTI — what they mean in practice
The 2500Vrms isolation rating is the reinforced single-channel barrier for industrial applications like PLC I/O modules, motor-drive interface, and isolated sensor readout. The 25kV/µs common-mode transient immunity (CMTI) is the spec that matters when the part sits across a switching power stage: fast voltage transients from a MOSFET or IGBT bridge can couple across the barrier and corrupt data if the isolator can't reject them. At 25kV/µs minimum, this part handles the edge rates in most 600V-class motor drives and inverter legs.
Three channels, all forward — no reverse path
The channel configuration is 3 inputs on side 1, 0 on side 2 — all three channels pass data from the primary side to the secondary. There is no reverse-direction channel, so if your design needs bidirectional isolation (e.g., SPI with MISO feedback), you either use two of these or step up to a part with mixed-direction channels like the ADUM1411ARWZ-RL which offers 3/1 input count.
Timing and signal integrity at 1Mbps
Propagation delay is 100ns max in both directions, and pulse-width distortion is held to 40ns max. Rise and fall times are a fast 2.5ns typical, which keeps the output edges clean for 1Mbps signaling. If your bus runs at 1Mbps (e.g., isolated RS-485 or CAN), the 100ns delay adds about 10% of the bit period — budget that into your timing closure. The 40ns PWD means the on-time vs off-time distortion stays under 4% of the bit width at 1Mbps, which most UART and SPI receivers tolerate without bit errors.
Package and rework considerations
The 16-SOIC wide-body package (0.295" body width, 7.50mm) is a standard footprint with 1.27mm pitch — easy to hand-solder or rework with hot air. The wide body gives good creepage for the 2500Vrms rating, but the package itself is not hermetic — conformal coat if the board sees condensation.
Lifecycle and sourcing posture
It is ROHS3 compliant. No last-time-buy or obsolescence risk is known for this order code.