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Analog Devices ADUM1245ARSZ — Digital Isolators

ADUM1245ARSZ iCoupler Digital Isolator, 3750Vrms, 2Ch, 2Mbps

MPNADUM1245ARSZ
End of Life

Analog Devices iCoupler ADUM1245ARSZ, General Purpose Digital Isolator, Magnetic Coupling, 2 Unidirectional Channels, 3750Vrms, 2Mbps, 20-SSOP, -40°C to 125°C, 2.25V to 3.6V Supply.

$5.03Ref. price · indicative, final on quote
Packaging20-SSOP (0.209", 5.30mm Width)
RoHSROHS3 Compliant
SeriesiCoupler®
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

ADUM1245ARSZ specifications
ParameterValue
TypeGeneral Purpose
SeriesiCoupler®
Channel typeUnidirectional
MountingSurface Mount
Voltage2.25V ~ 3.6V
Voltage - isolation3750Vrms
Isolated powerNo
Operating temperature-40°C ~ 125°C
Pulse width distortion8ns
PackageTube
Data rate2Mbps
TechnologyMagnetic Coupling
Case20-SSOP (0.209\", 5.30mm Width)
Channels2
Inputs - side 1/Side 22/0
Rise (Fall time)2ns, 2ns
Propagation delay tpLH (tpHL)180ns, 180ns
Common mode transient immunity25kV/µs

Product details

The 2 Mbps data rate handles GPIO, SPI clock, UART, and control signals comfortably, but it will bottleneck full-speed USB or 100 Mbps Ethernet — match the channel speed to your bus before committing the BOM. Common-mode transient immunity of 25 kV/µs means the output won't glitch when a switching MOSFET or IGBT dumps a fast dV/dt edge across the barrier — critical for motor-drive inverter stages and isolated DC-DC converters.

The two channels are unidirectional and both face the same direction (2 inputs on side 1, 0 on side 2) — this part isolates downstream signals from the controller; it won't handle bidirectional data like an RS-485 transceiver without external direction control.

ROHS3 compliant, so it passes European and California RoHS thresholds without an exemption.

Frequently asked questions

Does ADUM1245ARSZ have a cross reference or equivalent?

There is no official second-source listed. The closest iCoupler sibling is the ADUM1281ARZ, which offers a 3 kVrms rating and 1 Mbps data rate — a drop-in only if your isolation and speed requirements are lower.