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Analog Devices ADM3490ARZ-REEL7 — Sensors & Transducers

ADM3490ARZ-REEL7 10 Mbps RS-485/RS-422 Transceiver – Analog

MPNADM3490ARZ-REEL7
End of Life

Analog Devices ADM3490ARZ-REEL7, full-duplex RS-485/RS-422 transceiver, 1 driver / 1 receiver, 10 Mbps data rate, 3V–3.6V supply, 8-SOIC package, -40°C to 85°C operating range.

$3.79Ref. price · indicative, final on quote
Analog Devices ADM3490ARZ-REEL7 datasheet (PDF)
Packaging8-SOIC (0.154", 3.90mm Width)
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

ADM3490ARZ-REEL7 specifications
ParameterValue
TypeTransceiver
MountingSurface Mount
Supply voltage3V ~ 3.6V
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 hysteresis50 mV
Number of drivers (Receivers)1/1

Product details

10 Mbps full-duplex RS-485/RS-422 transceiver in 8-SOIC

The ADM3490ARZ-REEL7 is a single-channel full-duplex transceiver supporting both RS-422 and RS-485 protocols at a signaling rate of 10 Mbps. With one driver and one receiver on-chip, this part handles point-to-point or multi-drop RS-485 networks up to the standard 32-unit load limit.

Analog Devices has not issued a PCN for this MPN, so the date-code and marking consistency across reels should be stable — a key check for gray-market lots. ROHS3 compliant, no exemption conflicts for EU or California markets.

Frequently asked questions

What is the closest functional alternative to ADM3490ARZ-REEL7?

The ADM3490EARZ-REEL7 is a pin-compatible sibling with the same full-duplex RS-485/RS-422 interface, 10 Mbps data rate, and 3.0V supply. The 'E' variant typically offers enhanced ESD protection — check the respective datasheets for the exact ESD rating difference. The ADM3491ARZ-REEL7 adds a second receiver (1 driver / 2 receivers) for applications needing an extra monitoring node on the bus.

Can ADM3490ARZ-REEL7 be used for RS-485 communication at 10 Mbps?

Yes, the ADM3490ARZ-REEL7 is specified for RS-485 and RS-422 protocols at a data rate of 10 Mbps. At this speed, the maximum cable length is limited by signal attenuation — typically ~100–200 feet for reliable operation. The 50 mV receiver hysteresis helps reject noise on longer runs.