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Analog Devices LTM2881CY-3#PBF — Digital Isolators

LTM2881CY-3#PBF Analog Devices RS422/RS485 Isolated

MPNLTM2881CY-3#PBF
End of Life

Analog Devices LTM2881CY-3#PBF, µModule® series, RS422 RS485 digital isolator, 20Mbps data rate, 2500Vrms isolation, 3V ~ 3.6V supply, 32-BBGA Module, 0°C ~ 70°C.

$21.1Ref. price · indicative, final on quote
Packaging32-BBGA Module
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

LTM2881CY-3#PBF Technical Specifications
ParameterValue
TypeRS422, RS485
SeriesµModule®
Channel typeUnidirectional
Mounting typeSurface Mount
Voltage3V ~ 3.6V
Voltage - isolation2500Vrms
Isolated powerYes
Operating temperature0°C ~ 70°C
PackageTray
Data rate20Mbps
TechnologyMagnetic Coupling
Case32-BBGA Module
Number of channels2
Inputs - side 1/Side 21/1
Common mode transient immunity30kV/µs

Product details

What the ratings mean for your BOM

The 2500Vrms isolation rating provides basic functional isolation for industrial bus interfaces; it is not rated for reinforced medical isolation but is sufficient for separating RS485 networks in factory-floor equipment. The 20Mbps data rate supports Profibus and similar high-speed RS485 protocols without bit-rate limiting. Common-mode transient immunity of 30kV/µs means the receiver stays locked to the bus during motor drive switching events or relay contact bounce — a real concern in noisy panels. The integrated isolated power (3V to 3.6V input) powers both sides of the barrier, so you only need one clean 3.3V rail on the logic side; the isolated side output is available for the transceiver and any external bus biasing resistors.

Lifecycle and sourcing

This part is listed as Active with ROHS3 compliance. No last-time-buy or obsolescence notice is on record. For dual-sourcing, the closest functional equivalent is the ADM2582EBRWZ-REEL7 from Analog Devices (IsoPower®, iCoupler®), which also integrates isolated power and RS422/RS485 but runs at 16Mbps and offers a wider -40°C to 85°C temperature range. The ADM2582 is a pin-compatible alternative for designs that need the wider temperature grade, though the package is a different form factor (SOIC-WB vs BGA).

Frequently asked questions

Does LTM2881CY-3#PBF provide isolated power?

Yes, it integrates an isolated DC-DC converter, so no external isolated supply module is needed.

What is the closest functional second-source for LTM2881CY-3#PBF?

The ADM2582EBRWZ-REEL7 (also from Analog Devices) is a close functional equivalent with integrated isolated power and RS422/RS485, but it runs at 16Mbps and operates from -40°C to 85°C. The package is different (SOIC-WB vs BGA), so a board layout change is required.

Where can I buy LTM2881CY-3#PBF?

This part is available to order through independent distribution. Submit an RFQ for current pricing and lead time for your required quantity.