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Analog Devices ADUM7640CRQZ-RL7 — Digital Isolators

ADUM7640CRQZ-RL7 Digital Isolator, 6-Ch, 25Mbps, 1000Vrms

MPNADUM7640CRQZ-RL7
End of Life

Analog Devices ADUM7640CRQZ-RL7, iCoupler series, General Purpose digital isolator, 6 unidirectional channels, 25Mbps data rate, 1000Vrms isolation, 15kV/µs CMTI, 3V to 5.5V supply, -40°C to 105°C, 20-QSOP package, Tape & Reel.

$9.28Ref. price · indicative, final on quote
Packaging20-SSOP (0.154", 3.90mm Width)
RoHSROHS3 Compliant
SeriesiCoupler®
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

ADUM7640CRQZ-RL7 specifications
ParameterValue
TypeGeneral Purpose
SeriesiCoupler®
Channel typeUnidirectional
MountingSurface Mount
Voltage3V ~ 5.5V
Voltage - isolation1000Vrms
Isolated powerNo
Operating temperature-40°C ~ 105°C
Pulse width distortion6ns
PackageTape & Reel (TR); Cut Tape (CT)
Data rate25Mbps
TechnologyMagnetic Coupling
Case20-SSOP (0.154\", 3.90mm Width)
Channels6
Inputs - side 1/Side 26/0
Rise (Fall time)2ns, 2ns
Propagation delay tpLH (tpHL)50ns, 50ns
Common mode transient immunity15kV/µs

Product details

It provides galvanic isolation rated at 1000 Vrms, with all six channels running unidirectional from Side 1 to Side 2 (6/0 input/output count).

25 Mbps data rate and 50 ns propagation delay — timing budget for the bus

The 2 ns typical rise/fall time keeps the signal edges sharp enough for a 20-pin QSOP layout, but the 15 kV/µs common-mode transient immunity ensures the barrier does not glitch when a motor drive or inverter switches at high dV/dt.

No separate VDDIO or level-shifting needed if both sides run at the same voltage. If you need to cross a 3.3 V to 5 V boundary, this part does not do that — all channels are unidirectional and the supply is common to both sides. For bidirectional isolation or mixed-voltage domains, look at the ADUM7643 variant with 3/3 channel split.

No AEC-Q automotive grade is listed, so for under-hood or cabin applications, check the automotive-rated iCoupler variants separately.

Frequently asked questions

What is the replacement for ADUM7640CRQZ-RL7?

The ADUM7640CRQZ-RL7 is an active part with no official replacement. For a different channel-direction split, the ADUM7643CRQZ-RL7 offers the same 6-channel count but with a 3/3 input/output configuration instead of 6/0. Both run at 25 Mbps, same isolation and package.

Does ADUM7640CRQZ-RL7 support 3.3V supply?

Yes. Both sides of the isolator share the same supply voltage.

Can ADUM7640CRQZ-RL7 replace ADUM7640CRQZ?

The ADUM7640CRQZ-RL7 is functionally identical to the ADUM7640CRQZ. The only difference is packaging: the -RL7 suffix denotes Tape & Reel, while the base part number ships in a tube. Both use the same die, same 20-QSOP package, and same ratings.