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Analog Devices MAX3158EAI — Sensors & Transducers
Analog Devices

MAX3158EAI RS-485/RS-422 Transceiver with Isolation –

MPNMAX3158EAI
End of Life

Analog Devices MAX3158EAI, RS-422/RS-485 transceiver with isolation, 250 kbps data rate, 1/1 driver/receiver, 5 V supply, -40°C to 85°C, 28-SSOP package.

$6.8Ref. price · indicative, final on quote
MAX3158EAI datasheet
Packaging28-SSOP (0.209", 5.30mm 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

MAX3158EAI Technical Specifications
ParameterValue
TypeTransceiver
Mounting typeSurface Mount
Voltage4.75V ~ 5.25V
ProtocolRS422, RS485
Operating temperature-40°C ~ 85°C (TA)
DuplexFull, Half
PackageBulk
Data rate250kbps
Case28-SSOP (0.209\", 5.30mm Width)
Receiver hysteresis25 mV
Number of drivers (Receivers)1/1

Product details

Active production — isolated RS-485 transceiver

The MAX3158EAI is an Analog Devices RS-422/RS-485 transceiver with integrated isolation, listed as Active in production. It operates from a 4.75 V to 5.25 V supply and supports both full and half-duplex communication at a data rate of 250 kbps.

Supply rail and data-rate constraints

The 5 V ±5 % supply rail is fixed — this part does not run on 3.3 V. At 250 kbps, the maximum cable length follows the RS-485 trade-off: roughly 4000 ft at that speed, limited by signal rise-time and DC drop. The single driver and single receiver cover point-to-point or multi-drop topologies with proper termination.

Package and footprint for PCB layout

Housed in a 28-SSOP package with 0.209-inch body width and 5.30 mm height, surface-mount. The 0.65 mm pin pitch requires a 4-layer board for clean fan-out of the isolation barrier signals. No exposed pad — thermal dissipation relies on copper pours under the package.

Sourcing and compliance note

Active lifecycle status means no end-of-life risk for ongoing production. RoHS non-compliant — verify your assembly line's exemption policy if you require lead-free solder.

Frequently asked questions

What is the data rate of the MAX3158EAI?

The MAX3158EAI supports a maximum data rate of 250 kbps. This is typical for isolated RS-485 transceivers of this generation; the isolation barrier capacitance limits higher-speed signalling.

Is the MAX3158EAI compatible with 5 V supplies?

Yes, the supply voltage range is 4.75 V to 5.25 V. It is not designed for 3.3 V operation — a separate 5 V rail or a level translator is needed if your system runs at 3.3 V logic.