ADM3491ARZ The ADM3491ARZ is a 3.3V full duplex RS-422/RS-485 transceiver from Analog Devices. It supports data rates up to 10Mbps and comes in a 14-SOIC surface mount package.
Mfr Part #:

ADM3491ARZ

Available from 2 distributors
Mfr Name: Analog Devices / Maxim Integrated
Analog Devices / Maxim Integrated
The ADM3491ARZ is a 3.3V full duplex RS-422/RS-485 transceiver from Analog Devices. It supports data rates up to 10Mbps and comes in a 14-SOIC surface mount package.
Total Stock: 61 pcs

ADM3491ARZ Available from 2 distributors

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ADM3491ARZ Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Data Rate
Duplex
Height
Length
Mounting Type
Number of Drivers
Operating Temperature
Protocol
Receiver Hysteresis
Shutdown
Supplier Device Package
Type
Voltage
Width

ADM3491ARZ Description

Short technical summary and product information.

The ADM3491ARZ is a low-power, 3.3V full duplex RS-422/RS-485 transceiver from Analog Devices. It features one driver and one receiver, supporting data rates up to 10 Mbps. The device includes a shutdown mode with a typical supply current of 2 nA, and a quiescent current of 1 µA, making it ideal for power-sensitive applications. It can interface with up to 32 transceivers on the bus and operates over a common-mode range of -7 V to +12 V.

 

The transceiver is specified for the -40°C to +85°C temperature range and is available in a 14-SOIC surface mount package (8.75 mm x 4 mm x 1.5 mm max). Typical applications include low power RS-485/RS-422 networks in telecom, industrial process control, and HVAC systems. The device is interoperable with 5 V logic and features 50 mV receiver hysteresis for noise immunity.

ADM3491ARZ Quick Information

Product Type: Transceiver
Series: ADM3491
Canonical Name: ADM3491ARZ - 3.3V Full Duplex RS-422/RS-485 Transceiver, 10Mbps, 14-SOIC
Subcategory: RS-422/RS-485 Interface IC

ADM3491ARZ Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

ADM3491ARZ Features

  • 3.3V low power full duplex transceiver.
  • Supports data rates up to 10Mbps.
  • Includes shutdown mode with 2nA supply current.
  • Operates over -40°C to +85°C range.
  • Up to 32 transceivers on the bus.

ADM3491ARZ Applications

  • Ideal for low power RS-485/RS-422 networks.
  • Used in telecom and industrial control systems.
  • Suitable for HVAC and building automation.
  • Perfect for battery-powered communication interfaces.

ADM3491ARZ FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage of the ADM3491ARZ?

The supply voltage range is 3V to 3.6V, typically 3.3V.

What package does the ADM3491ARZ come in?

It is available in a 14-SOIC surface mount package (0.154", 3.90mm Width).

What is the operating temperature range?

The operating temperature range is -40°C to +85°C.

Is the ADM3491ARZ RoHS compliant?

The part is listed as RoHS3 Compliant, but this data is unverified and low confidence.

What is the data rate of the ADM3491ARZ?

The data rate is 10 Mbps.

How many drivers and receivers does the ADM3491ARZ have?

It has 1 driver and 1 receiver.

Does the ADM3491ARZ have a shutdown mode?

Yes, it includes a shutdown mode with a typical supply current of 2 nA.

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