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Analog Devices ADUM4400BRWZ — Digital Isolators

ADUM4400BRWZ iCoupler Digital Isolator, 5000Vrms, 10Mbps

MPNADUM4400BRWZ
End of Life

Analog Devices ADUM4400BRWZ iCoupler, General Purpose digital isolator, 4-channel unidirectional, 10Mbps data rate, 5000Vrms isolation, 16-SOIC wide-body, -40°C to 105°C.

$9.86Ref. price · indicative, final on quote
Packaging16-SOIC (0.295", 7.50mm Width)
RoHSROHS3 Compliant
SeriesiCoupler®
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

ADUM4400BRWZ specifications
ParameterValue
TypeGeneral Purpose
SeriesiCoupler®
Channel typeUnidirectional
MountingSurface Mount
Supply voltage3V ~ 5.5V
Voltage - isolation5000Vrms
Isolated powerNo
Operating temperature-40°C ~ 105°C
Pulse width distortion3ns
PackageTube
Data rate10Mbps
TechnologyMagnetic Coupling
Case16-SOIC (0.295\", 7.50mm Width)
Channels4
Inputs - side 1/Side 24/0
Rise (Fall time)2.5ns, 2.5ns
Propagation delay tpLH (tpHL)50ns, 50ns
Common mode transient immunity25kV/µs

Product details

Four-channel isolation with 5000 Vrms reinforced rating

The ADUM4400BRWZ is a 4-channel, unidirectional digital isolator from Analog Devices' iCoupler family, using magnetic coupling to pass signals across a reinforced isolation barrier rated at 5000 Vrms. The 25 kV/µs minimum common-mode transient immunity means it won't glitch when a motor drive or inverter switches a high-voltage node next to the barrier.

Supply rails and channel direction

All four channels are unidirectional with all inputs on Side 1 and all outputs on Side 2 (4/0 configuration), which suits a pure downstream isolation path like a microcontroller to a gate driver or ADC. There is no isolated power output on this part — you supply the secondary-side Vdd separately.

Frequently asked questions

What is the data rate and propagation delay of ADUM4400BRWZ?

The ADUM4400BRWZ supports a 10 Mbps data rate per channel with a maximum propagation delay of 50 ns and pulse-width distortion of 3 ns, which keeps the timing budget adequate for most industrial serial interfaces.

What is the closest pin-compatible alternative to ADUM4400BRWZ?

Within the same iCoupler family, the ADUM4400ARWZ and ADUM4400CRWZ are pin-compatible variants that differ in data rate (1 Mbps and 90 Mbps respectively). The ADUM4400BRWZ sits at 10 Mbps, which is the mid-speed option. For a different channel configuration, the ADUM4401 series offers a 3/1 direction split in the same package.