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Name: MAX485MJA
Brand: Analog Devices Inc./Maxim Integrated
SKU: MAX485MJA
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 MAX485MJA

Part No.:: MAX485MJA

Manufacturer:: Analog Devices Inc./Maxim Integrated

Package:: 8-CDIP (0.300, 7.62mm)

Datasheet:

Description:: IC TRANSCEIVER HALF 1/1 8CERDIP

In Stock:: 2837

Quantity:: Add To Cart

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MAX485MJA Specifications

Package/Case:
8-CDIP (0.300, 7.62mm)
Packaging:
Tube
Series:
-
ProductStatus:
Active
Type:
Transceiver
Protocol:
RS422, RS485
NumberofDrivers/Receivers:
1/1
Duplex:
Half
ReceiverHysteresis:
70 mV
DataRate:
2.5Mbps
Voltage-Supply:
4.75V ~ 5.25V
OperatingTemperature:
-55°C ~ 125°C (TA)
MountingType:
Through Hole

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MAX485MJA information

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MAX485MJA Typical application Circuitry

MAX485MJA

The MAX485MJA is a robust and reliable RS-485/RS-422 transceiver from the MAX485 family, designed by Maxim Integrated. This family is renowned for providing efficient solutions for half-duplex communication over long distances and in electrically noisy environments. The MAX485MJA is particularly well-suited for industrial control systems, network communication, and data acquisition applications, where its ability to maintain signal integrity and minimize power consumption is highly valued.

1. Power Supply Connections (VCC, GND): The MAX485MJA requires a stable power supply connected to the VCC pin, with a typical operating range of 5V, aligning with the standards for many RS-485 and RS-422 systems. The ground connection is established through the GND pin, ensuring a stable reference point for the transceiver's operations and enhancing the overall signal quality.

2. Differential Data Transmission (A, B): The MAX485MJA features differential data transmission lines, A and B, which are crucial for RS-485/RS-422 communication. These pins are connected to the twisted pair network cable, facilitating robust data transmission that is resistant to electrical noise and capable of covering long distances.

3. Driver Input and Receiver Output (DI, RO): The Driver Input (DI) pin is used to input digital data into the MAX485MJA for transmission over the network. Conversely, the Receiver Output (RO) pin provides the digital data received from the network, allowing the connected system, such as a microcontroller or digital logic circuit, to process the incoming data.

4. Receiver and Driver Enable (RE, DE): The MAX485MJA includes separate Receiver Enable (RE) and Driver Enable (DE) pins, allowing precise control over the transceiver's receiving and transmitting functions, respectively. The RE pin, when driven low, activates the receiver, while the DE pin, when driven high, enables the transmitter. This arrangement supports efficient half-duplex communication by selectively enabling the receiver and transmitter as required.

5. Network Termination and Biasing (A, B): Proper network configuration may include the use of termination resistors at the ends of the network to match the characteristic impedance of the cable, thereby minimizing reflections. Additionally, bias resistors might be employed to ensure a defined logic level on the communication lines when they are idle, enhancing the reliability of the data communication.

6. Protection and Filtering (VCC, GND, A, B): Implementing protection mechanisms such as transient voltage suppressors on the communication lines (A, B) and decoupling capacitors close to the VCC and GND pins can significantly enhance the MAX485MJA's resilience to external disturbances and power supply noise.

Integrating the MAX485MJA into a communication system requires careful consideration of power supply management, signal routing, enable control, and network configuration to leverage its full capabilities for robust RS-485/RS-422 communication. The MAX485 series, with the MAX485MJA as a key component, exemplifies Maxim Integrated's commitment to providing reliable and efficient communication solutions suitable for a wide range of demanding applications.

MAX485MJA FAQ

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3. Are the MAX485MJA price and inventory displayed accurate?

The price and inventory of MAX485MJA 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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6. What is the process for return or replacement of MAX485MJA?

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 MAX485MJA we delivered, we will accept the replacement or return of the MAX485MJA 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 MAX485MJA.

(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