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Analog Devices ADM2587EBRWZ — Digital Isolators
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Analog Devices / Digital Isolators

ADM2587EBRWZ RS-485/RS-422 Transceiver, 500 kbps

MPN ADM2587EBRWZ
End of Life Spot Stock · 24-48h Dispatch 100% Original Sealed

Analog Devices ADM2587EBRWZ, IsoPower®, iCoupler® RS422/RS485 transceiver, 500 kbps, 2500 Vrms isolation, 3.3V/5V supply, 20-SOIC, -40°C to 85°C.

In Stock: 810 pcs
MOQ: 1 pcs
Logistics: DHL / FedEx DAP (Global Express · 3-7d) Russia & CIS DDP (Door-to-Door Cleared)
Dispatch: Shenzhen / HK
Unit Price (USD)
$16.12 / pc
Direct Purchase Ready
Volume Pricing Breaks Confirmed upon quotation
1+ pcs
$16.12
10+ pcs
$14.26
37+ pcs
$12.24
111+ pcs
$11.29
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$16.12 / ea

810 in stock — maximum per order · 3–4 days lead time

$14.26 / ea from 10 pcs
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100% Original Sealed 45x Microscope QC 30-Day Warranty · COC USD T/T & PI · DAP/DDP
[SPEC] Essential Parameters Snapshot Full Specifications (16)
Package / Case 20-SOIC (0.295", 7.50mm Width)
Supply Voltage 3.3V, 5V
ALT
Facing long factory lead times or allocation on ADM2587EBRWZ? Verified pin-compatible alternatives available with active Shenzhen stock and 100% solder-ready footprint match.
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Full Technical Specifications

16 Parameters
ADM2587EBRWZ specifications
Parameter / AttributeSpecification / Value
TypeRS422, RS485
SeriesIsoPower®, iCoupler®
Channel typeUnidirectional
MountingSurface Mount
Supply voltage3.3V, 5V
Voltage - isolation2500Vrms
Isolated powerYes
Operating temperature-40°C ~ 85°C
PackageTube
Data rate500kbps
TechnologyMagnetic Coupling
Case20-SOIC (0.295\", 7.50mm Width)
Channels2
Inputs - side 1/Side 21/1
Rise (Fall time)1.1µs, 1.1µs (Max)
Common mode transient immunity25kV/µs
100% Footprint Match · Solder-Ready (No PCB Redesign Needed)

Need Stock or a Drop-in Second-Source for ADM2587EBRWZ?

Package: SOIC-16 wide body (16-lead SOIC_W) · Pin-compatible replacements with immediate Shenzhen spot stock

Footprint Match 97%
Supply Chain & Allocation Reality:

The ADM2483 is the isolated half-duplex RS-485 transceiver of industrial Modbus loops, servo drives and PLC networks: a 2.5kV rms iCoupler barrier with true fail-safe receivers, a slew-limited driver, more than 25kV per microsecond of common-mode transient immunity, and a 16-pin wide SOIC that its 20 megabit PROFIBUS twin, the ADM2486, shares pin for pin. The substitution conversation around it has two halves: inside the 16-pin row it is a clean speed ladder, and outside it the trap is architectural - the 2483 isolates the DATA, and the bus-side supply must be isolated by the board. A repair that ties GND2 to logic ground has built a very robust non-isolated transceiver out of an expensive isolated one.

Verified Pin-Compatible Replacements (3 verified alternatives)

ADM2486 Analog Devices SOIC-16 wide body
100% Drop-in (Zero Code Change)
Availability & Target Pricing:

The 20Mbps PROFIBUS Member

Shenzhen Spot Stock (24-48h Dispatch)

Electrical & Core Specs:

The same 16-pin wide-body footprint at 40 times the data rate: 20Mbps against the 500kbps slew-limited 2483, PROFIBUS compliance, and an isolated DE status output the 2483 does not carry.

Same 3.0-5.0V logic side and the same isolated-bus-side discipline.

Compatibility & Drop-In Notes: A genuine same-socket speed upgrade for boards that moved to faster protocols; fitting the slower 2483 back into a PROFIBUS loop is the direction that fails at the protocol, not the pins.
Package & Solder Footprint: Same wide-body SOIC-16 land.
Shenzhen Warehouse Stock & MOQ: Stocked; quote the speed class against the protocol.
Request Volume Quote for ADM2486 Compare ADM2587EBRWZ vs ADM2486 Spec Matrix
ADM2582E / ADM2587E Analog Devices SOIC-20 wide body
Functional Equivalent
Availability & Target Pricing:

The Integrated-Power Generation (isoPower)

Shenzhen Spot Stock (24-48h Dispatch)

Electrical & Core Specs:

The next generation folds the isolated DC-DC converter into the package (isoPower): the bus side powers itself from the logic side across the barrier - 16Mbps (2582E) or 500kbps (2587E) with the isolated rail included.

The whole point of the family: no separate isolated supply winding needed on the bus side - and the decoupling that comes with it (VISOOUT/VISOIN with their 0.1uF and 0.01uF capacitors) is part of the design.

Compatibility & Drop-In Notes: A 20-pin part is not a repair substitution for a 16-pin socket: the honest use is redesign and new boards, where the BOM shrinks by the whole isolated supply. For repairs, stay in the 16-pin row.
Package & Solder Footprint: 20-lead wide SOIC with its own decoupling network.
Shenzhen Warehouse Stock & MOQ: Stocked; the modern-design answer to the same requirement.
Request Volume Quote for ADM2582E / ADM2587E Compare ADM2587EBRWZ vs ADM2582E / ADM2587E Spec Matrix
MAX13487 / MAX485 class (non-isolated) Maxim (Analog Devices) / multiple SOIC-8 / DIP-8
Functional Equivalent
Availability & Target Pricing:

The Reminder: Isolation Was the Part

Shenzhen Spot Stock (24-48h Dispatch)

Electrical & Core Specs:

Ordinary RS-485 transceivers - some with auto-direction convenience (MAX13487) - with no barrier at all: 8-pin parts that talk the same protocol across the same two wires.

Single supply, no isolation: the ground-loop current that the ADM2483 was bought to stop flows freely through the substitution.

Compatibility & Drop-In Notes: Auto-direction parts delete the DE timing the firmware manages on the 2483: moving between the two families is a firmware contract change on top of the electrical one. This card exists to make the deletion of the barrier visible before it happens.
Package & Solder Footprint: SOIC-8/DIP-8 against the 16-pin isolated body - different build entirely.
Shenzhen Warehouse Stock & MOQ: Universal stock; the baseline the isolated family is priced against.
Request Volume Quote for MAX13487 / MAX485 class (non-isolated) Compare ADM2587EBRWZ vs MAX13487 / MAX485 class (non-isolated) Spec Matrix
Buyer & Quality Checklist for Sourcing Alternatives
  • Isolation is the function: the 2.5kV barrier and the >25kV per microsecond transient immunity are what the part was bought for in Modbus, VFD-adjacent and long-line industrial duty. A substitute without the barrier removes the reason the board survived its environment.
  • The supply half: the ADM2483 isolates DATA only - the bus-side (GND2/A/B) supply must itself be isolated on the board. A repair that bridges GND2 to logic ground turns the part into a non-isolated transceiver and re-opens every ground loop the design closed.
  • The 16-pin row is a pin-pure speed ladder: ADM2483 at 500kbps with 256-node support, ADM2486 at 20Mbps PROFIBUS grade with 50 - a drop-in upgrade with one network-margin number to check in the other direction.
  • The isoPower generation (ADM2582E/2587E) integrates the isolated DC-DC in a 20-pin body with its own decoupling requirements - a redesign route that deletes the isolated winding from the BOM, not a socket swap.
  • Bus protection is part of the transceiver repair: TVS clamps on A/B, the fail-safe bias network and 120-ohm end termination are what killed the old chip. Replace the protection with the silicon or schedule the second failure.
  • Direction control: half-duplex parts expect the firmware to manage DE/RE timing; auto-direction parts (MAX13487 class) delete that pin and its contract - moving between families is a firmware change as well as an electrical one.
Frequently Asked Technical Questions

Q: Can an ADM2486 replace an ADM2483?

A: Yes - the 16-pin wide-body parts are pin compatible: 20Mbps PROFIBUS grade against 500kbps, with an isolated DE status output added. The one number moving the other way is node support (50 against 256) - check long networks before the swap.

Q: What is the difference between the ADM2483 and the ADM2582E?

A: The 2582E family integrates the isolated power supply (isoPower) in a 20-pin package, powering the bus side across the barrier; the ADM2483 isolates data only and needs an isolated bus-side supply from the board. The 20-pin part is a design route, not a repair substitute.

Q: Can I use a MAX485 instead of an ADM2483?

A: It talks the same protocol, but it has no isolation. The 2.5kV barrier disappears, along with the ground-loop immunity the design was specified for. It is honest only where the bus was short and single-ground all along - otherwise the replacement deletes a safety function.

Technical Details & Description

Integrated isolated RS-485/RS-422 transceiver with on-board DC-DC

The Analog Devices ADM2587EBRWZ is a fully integrated, isolated RS-485/RS-422 transceiver that combines a magnetic-coupled digital isolator (iCoupler technology) with an integrated isolated DC-DC converter (IsoPower). The transceiver is unidirectional with one driver and one receiver channel (1/1 input configuration), and the rise/fall times are specified at 1.1 µs typical, which limits edge-rate emissions — useful for longer cable runs without excessive ringing.

2500 Vrms isolation and common-mode transient immunity

The 2500 Vrms isolation rating is the figure that determines whether this part fits a given safety standard — think IEC 60950-1 reinforced insulation for mains-connected equipment, or medical isolation requirements in non-patient-contact applications. The common-mode transient immunity is specified at a minimum of 25 kV/µs, which means the receiver output won't glitch when a large voltage step jumps across the isolation barrier. That matters in motor-drive environments where PWM switching couples fast edges onto the bus cable.

No exposed pad, so thermal management relies on the package's own dissipation limits — keep the ambient airflow in mind if running near the maximum bus load continuously.

Frequently asked questions

Where can I buy ADM2587EBRWZ available via RFQ confirmation?

The ADM2587EBRWZ is available to order through independent distribution. Submit an RFQ for current availability and pricing — stock levels and lead times are confirmed at quote time.

Does ADM2587EBRWZ require an external power supply for the isolated side?

No. This saves board space and simplifies the BOM.

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