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Name: MAX490ESA
Brand: Analog Devices Inc./Maxim Integrated
SKU: MAX490ESA
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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Analog Devices Inc./Maxim Integrated MAX490ESA

Part No.:: MAX490ESA

Manufacturer:: Analog Devices Inc./Maxim Integrated

Package:: -

Datasheet:: MAX490ESA.pdf

Description:: RS-485/RS-422 TRANSCVR

In Stock:: 11771

Quantity:: Add To Cart

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MAX490ESA Specifications

Package/Case:
-
Packaging:
Bulk
Series:
*
ProductStatus:
Obsolete
Type:
-
Protocol:
-
NumberofDrivers/Receivers:
-
Duplex:
-
ReceiverHysteresis:
-
DataRate:
-
Voltage-Supply:
-
OperatingTemperature:
-
MountingType:
-

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MAX490ESA information

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MAX490ESA Typical application Circuitry

MAX490ESA

A slew-rate-limited, low-power transceiver for RS-485 and RS-422 communication interfaces is the MAX490ESA. Manufactured by Maxim Integrated, this device is known for its capability to operate in half-duplex communication with a single driver and receiver.

Application Scenarios

The MAX490ESA is widely used in industrial control systems, networked devices in building automation, data acquisition systems, and any application requiring robust and reliable data communication over RS-485 or RS-422 networks.

Parameter Features

- Slew-Rate Limited: The MAX490ESA has a controlled slew rate, reducing EMI and allowing error-free data transmission at rates up to 2.5 Mbps.

- Low Power Consumption: Because to its low power consumption design, it is perfect for applications that are power-sensitive. - ESD Protection: Offers built-in ESD protection, enhancing the robustness of the device in harsh electrical environments.

- Half-Duplex Communication: Supports half-duplex communication, allowing bidirectional data transmission over a single pair of wires.

Application Scenario: Industrial Control System

In an industrial control system where multiple sensors and actuators are networked over a long distance, the MAX490ESA can be used to facilitate reliable RS-485 communication between the control unit and the remote devices.

- Power Supply Connection: Attach the GND pin to the system ground and the VCC pin to a +5V power source. The MAX490ESA operates within a 5V supply, ensuring low power consumption.

- RS-485 Network Interface: Connect the driver outputs (DI) to the microcontroller's UART transmit pin (TX) and the receiver input (RO) to the UART receive pin (RX). The differential driver outputs (A, B) are connected to the RS-485 network cable, facilitating communication over long distances.

- Termination Resistors: Install a termination resistor at each end of the RS-485 network to match the characteristic impedance of the cable, minimizing reflections and ensuring signal integrity.

- Biasing Resistors: Implement biasing resistors to ensure a defined logic level on the bus when all transceivers are in a high impedance state.

Design Considerations

- Signal Integrity: Account for the cable length and data rate to ensure signal integrity. The MAX490ESA's slew-rate limiting helps maintain signal quality over longer distances.

- Power Supply Decoupling: To ensure reliable operation of the MAX490ESA, place a decoupling capacitor in close proximity to the VCC pin to filter out power supply noise.

- Isolation: In electrically noisy environments, consider using isolation techniques between the MAX490ESA and the microcontroller to protect the system from ground loops and voltage spikes.

- Network Topology: Design the RS-485 network topology carefully, avoiding stubs and ensuring proper termination to prevent signal reflections.

By integrating the MAX490ESA into industrial control systems with these design principles, robust and reliable RS-485 communication can be established, enhancing the system's overall performance and reliability.

MAX490ESA FAQ

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We have a professional and experienced quality control team to strictly verify and test the MAX490ESA. All suppliers must pass our qualification reviews before they can publish their products including MAX490ESA on icwhale.com; we pay more attention to the channels and quality of MAX490ESA products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.

3. Are the MAX490ESA price and inventory displayed accurate?

The price and inventory of MAX490ESA fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.

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Warm Tips: It may take up to 24 hours for the carriers to display tracking information. Usually, express delivery takes 3-5 days, and registered mail takes 25-60 days.

6. What is the process for return or replacement of MAX490ESA?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the MAX490ESA we delivered, we will accept the replacement or return of the MAX490ESA only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of MAX490ESA.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations