ADM3491EARZ The ADM3491EARZ is a 3.3V full-duplex RS-485/RS-422 transceiver from Analog Devices. It features ±15 kV ESD protection, a 12 Mbps data rate, and is housed in a 14-SOIC package.
Mfr Part #:

ADM3491EARZ

Available from 1 distributors
Mfr Name: Analog Devices / Maxim Integrated
Analog Devices / Maxim Integrated
The ADM3491EARZ is a 3.3V full-duplex RS-485/RS-422 transceiver from Analog Devices. It features ±15 kV ESD protection, a 12 Mbps data rate, and is housed in a 14-SOIC package.
Total Stock: 2,590 pcs

ADM3491EARZ Available from 1 distributor

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ADM3491EARZ Specifications Quick View

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

ADM3491EARZ Description

Short technical summary and product information.

The ADM3491EARZ is a 3.3 V, low-power, full-duplex transceiver designed for RS-485 and RS-422 communication. It supports data rates up to 12 Mbps and includes ±15 kV ESD protection on the RS-485 input/output pins, making it suitable for industrial environments. The device operates over a supply voltage range of 3 V to 3.6 V and features a receiver hysteresis of 50 mV for noise immunity.

 

This transceiver can drive up to 32 nodes on a bus and has a common-mode input range of -7 V to +12 V. It includes thermal shutdown and short-circuit protection for robust operation. The full-duplex design allows simultaneous data transmission and reception on dedicated differential lines.

 

The ADM3491EARZ is offered in a 14-lead narrow SOIC package (14-SOIC) with a surface-mount mounting type. It is specified for an industrial temperature range of -40°C to +85°C, making it suitable for a wide range of applications including power/energy metering, telecommunications, and industrial control.

ADM3491EARZ Quick Information

Product Type: RS-485/RS-422 Transceiver
Canonical Name: ADM3491EARZ 3.3V Full-Duplex RS-485/RS-422 Transceiver
Subcategory: RS-422/RS-485 Interface ICs

ADM3491EARZ Compliance

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

ADM3491EARZ Features

  • Full-duplex RS-485/RS-422 transceiver.
  • ±15 kV ESD protection on bus pins.
  • 12 Mbps data rate capability.
  • Operates from 3 V to 3.6 V supply.
  • Industrial temperature range -40°C to +85°C.

ADM3491EARZ Applications

  • Ideal for industrial control networks.
  • Used in power and energy metering.
  • Suitable for telecommunications equipment.
  • Designed for EMI-sensitive systems.

ADM3491EARZ FAQs

7 frequently asked questions generated from this part’s specifications.
What is the supply voltage range for the ADM3491EARZ?

The supply voltage range is 3 V to 3.6 V.

What is the data rate of the ADM3491EARZ?

The datasheet specifies a data rate of 12 Mbps for the ADM3491E.

What is the operating temperature range of the ADM3491EARZ?

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

What package does the ADM3491EARZ come in?

The ADM3491EARZ is offered in a 14-SOIC (0.154", 3.90mm Width) surface-mount package.

What protocols does the ADM3491EARZ support?

It supports RS-422 and RS-485 protocols.

What is the ESD protection level on the RS-485 pins?

The RS-485 input/output pins have ±15 kV ESD protection.

How many transceivers can be on the bus with the ADM3491EARZ?

Up to 32 transceivers can be on the bus.

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