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Analog Devices ADM4857ARZ-REEL7 — Analog & Data Acquisition
Analog Devices

ADM4857ARZ-REEL7 RS-485/RS-422 Transceiver, Full Duplex

MPNADM4857ARZ-REEL7
End of Life

Analog Devices ADM4857ARZ-REEL7, RS-422/RS-485 transceiver, full duplex, 1/1 driver/receiver, 10 Mbps, 4.75 V to 5.25 V supply, 8-SOIC, -40°C to +85°C.

$3.29Ref. price · indicative, final on quote
ADM4857ARZ-REEL7 datasheet
Packaging8-SOIC (0.154", 3.90mm Width)
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

ADM4857ARZ-REEL7 Technical Specifications
ParameterValue
TypeTransceiver
Mounting typeSurface Mount
Voltage4.75V ~ 5.25V
ProtocolRS422, RS485
Operating temperature-40°C ~ 85°C
DuplexFull
PackageTape & Reel (TR); Cut Tape (CT)
Data rate10Mbps
Case8-SOIC (0.154\", 3.90mm Width)
Receiver hysteresis20 mV
Number of drivers (Receivers)1/1

Product details

Full duplex vs. half duplex — which ordering code fits your bus

Full duplex (ADM4857ARZ-REEL7) uses separate pairs for transmit and receive, allowing simultaneous bidirectional data flow. The half-duplex sibling ADM4853ARZ-REEL7 shares a single pair and requires direction control via the driver enable pin. If your application uses a four-wire RS-422 topology or a full-duplex RS-485 master-slave arrangement, this is the correct ordering code. For two-wire multi-drop RS-485 networks, the half-duplex variant saves one twisted pair.

Active lifecycle and supply posture

The part is ROHS3 compliant.

Frequently asked questions

What is the closest functional second-source for ADM4857ARZ-REEL7?

The half-duplex ADM4853ARZ-REEL7 is a close functional sibling with the same 10 Mbps data rate, 5 V supply, and 8-SOIC package. The key difference is duplex mode: ADM4857 is full duplex; ADM4853 is half duplex.

Can ADM4857ARZ-REEL7 be used with 3.3 V logic?

The supply voltage range is 4.75 V to 5.25 V. 3.3 V logic levels are outside the specified supply range; level translation is required for 3.3 V bus controllers.

Is ADM4857ARZ-REEL7 RoHS compliant?

Yes, it is ROHS3 Compliant per the manufacturer's listing.