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MAX491ECSD The MAX491ECSD is a low-power transceiver for RS-485 and RS-422 communications. It operates from a single +5V supply and supports data rates up to 2.5Mbps.
Mfr Part #:

MAX491ECSD

Available from 3 distributors
Mfr Name: Analog Devices / Maxim Integrated
Analog Devices / Maxim Integrated
The MAX491ECSD is a low-power transceiver for RS-485 and RS-422 communications. It operates from a single +5V supply and supports data rates up to 2.5Mbps.
✓ Total Stock: 7,450 pcs
$ Price Range: $1.44

MAX491ECSD Available from 3 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Xingangxin ✓
Non-Authorised Inventory information
5,000 pcs
On Request
5000 pcs On Request 1 On Request On Request On Request On Request On Request
Components Technology Group, Inc. ✓
Non-Authorised Inventory information
2,400 pcs
On Request
2400 pcs On Request 1 On Request On Request On Request On Request On Request
PROSOFT ELECTRONICS ✓
Non-Authorised Inventory information
50 pcs
On Request
50 pcs On Request 1 On Request On Request 24+ On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

MAX491ECSD Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Data Rate
Duplex
ESD Protection
Lead Spacing
Mounting Type
Number of Drivers
Operating Temperature
Protocol
Receiver Hysteresis
Slew Rate
Supplier Device Package
Supplier Package
Supply Current
Type
Voltage
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MAX491ECSD Description

Short technical summary and product information.

The MAX491ECSD from Analog Devices / Maxim Integrated is a low-power transceiver designed for RS-485 and RS-422 communication protocols. It is suitable for harsh environments and offers protection against ±15kV electrostatic discharge (ESD) shocks without latchup. This transceiver operates from a single +5V supply and supports data rates up to 2.5Mbps.

 

Key electrical characteristics include a typical supply current of 120µA when unloaded and a low-current shutdown mode consuming only 0.5µA. The device features one driver and one receiver, with a full-duplex communication capability. The receiver input includes a fail-safe feature that guarantees a logic-high output if the input is open circuit.

 

The MAX491ECSD is available in a 14-SOIC package and is designed for surface mount applications. Its operating temperature range is 0°C to 70°C. The transceiver's drivers are short-circuit current limited and protected by thermal shutdown circuitry.

MAX491ECSD Quick Information

Product Type: Transceiver
Canonical Name: MAX491ECSD RS485/RS422 Transceiver
Subcategory: Drivers, Receivers, Transceivers

MAX491ECSD Compliance

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

MAX491ECSD Estimated Pricing

Qty Low High
1+ $1.44 $1.44

Estimated market price range - modelled values for guidance only, not live distributor offers.

MAX491ECSD Features

  • Low-power RS-485/RS-422 transceiver.
  • Supports data rates up to 2.5Mbps.
  • ±15kV ESD protection without latchup.
  • Single +5V supply operation.
  • Available in 14-SOIC surface mount package.

MAX491ECSD Applications

  • Used in industrial communication systems
  • Suitable for differential data transmission
  • Ideal for RS422 and RS485 network interfaces
  • Applications requiring full duplex data transfer

MAX491ECSD FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating voltage for the MAX491ECSD?

The operating voltage for the MAX491ECSD is between 4.75V and 5.25V.

What is the operating temperature range of the MAX491ECSD?

The MAX491ECSD operates in a temperature range of 0°C to 70°C.

What communication protocols does the MAX491ECSD support?

The MAX491ECSD supports RS422 and RS485 communication protocols.

What is the maximum data rate for the MAX491ECSD?

The MAX491ECSD has a maximum data rate of 2.5Mbps.

What package type is the MAX491ECSD available in?

The MAX491ECSD is available in a 14-SOIC package.

Is the MAX491ECSD RoHS compliant?

The MAX491ECSD is RoHS3 compliant.

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