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Analog Devices ADM3483ARZ — Discrete Semiconductors

ADM3483ARZ RS-485/RS-422 Transceiver, Half-Duplex, 250 kbps

MPNADM3483ARZ
End of Life

Analog Devices ADM3483ARZ, Type Transceiver, Duplex Half, Protocol RS422 RS485, Data Rate 250kbps, Supply 3V-3.6V, 8-SOIC, -40°C to 85°C, 1/1 Drivers/Receivers.

$3.57Ref. price · indicative, final on quote
Analog Devices ADM3483ARZ datasheet (PDF)
Packaging8-SOIC (0.154", 3.90mm Width)
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

ADM3483ARZ specifications
ParameterValue
TypeTransceiver
MountingSurface Mount
Supply voltage3V ~ 3.6V
ProtocolRS422, RS485
Operating temperature-40°C ~ 85°C
DuplexHalf
PackageTube
Data rate250kbps
Case8-SOIC (0.154\", 3.90mm Width)
Receiver hysteresis50 mV
Number of drivers (Receivers)1/1

Product details

Supply rail and logic-level compatibility

The supply range is 3V to 3.6V — this is a 3.3V-class part, not 5V tolerant. Driving the driver input from a 5V logic output without a level shifter will exceed the absolute maximum on the DI pin. On the receiver side, the RO output swings rail-to-rail, so it drives a 3.3V MCU UART directly. The 50 mV hysteresis cleans up slow edges on long cable runs; it is fixed, not adjustable.

For dual-sourcing or a higher-speed option in the same footprint, the ADM3485ARZ is a direct pin-compatible alternate at 10 Mbps.

Frequently asked questions

What is the data rate of ADM3483ARZ?

250 kbps. This is the maximum data rate for the transceiver; it is not rated for higher speeds like the ADM3485ARZ at 10 Mbps.

What is the difference between ADM3483 and ADM3485?

The ADM3483ARZ is rated for 250 kbps, while the ADM3485ARZ is rated for 10 Mbps. Both are half-duplex RS-485/RS-422 transceivers in the same 8-SOIC package with the same 3V-3.6V supply range and pinout. The ADM3485 is the drop-in replacement if the bus needs higher speed.

Is ADM3483ARZ compatible with 5V logic?

No. The supply voltage range is 3V to 3.6V. The driver input (DI) and receiver output (RO) are 3.3V logic levels. Driving DI from a 5V logic output without level translation risks exceeding the input voltage limits.

What is the equivalent part to ADM3483ARZ?

The ADM3485ARZ is a pin-compatible, same-supply, same-footprint alternate with a 10 Mbps data rate. For a full-duplex version at the same 250 kbps, the ADM3488ARZ is the alternative.