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MAX485ED
+Lista de MateriaisIC TRANSCEIVER HALF 1/1 8SOP
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Peça do Fabricante #MAX485ED
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Ficha Técnica MAX485ED DataSheet
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Especificações
| Atributo | Valor |
| Part Status | Active |
| Type | Transceiver |
| Protocol | RS422, RS485 |
| Number of Drivers/Receivers | 1/1 |
| Duplex | Half |
| Receiver Hysteresis | 20 mV |
| Data Rate | 5Mbps |
| Voltage - Supply | 4.75 ~ 5.25V |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 8-SOP |
Visão Geral
Description
The MAX485ED is a low-power, robust, RS-485/RS-422 transceiver commonly used for serial communication in industrial and commercial applications. It is designed for differential data transmission over long distances and high-noise environments, offering enhanced noise immunity and signal integrity.
Key features of the MAX485ED include low power consumption, with a supply current of only 300 µA, and the ability to operate from a single +5V supply. It supports data rates up to 2.5 Mbps and features a slew rate-limited version for reduced EMI. The device is built with fail-safe receiver inputs, ensuring a defined output with open, shorted, or terminated input lines.
The MAX485ED is pin-compatible with other industry-standard RS-485 transceivers, facilitating easy integration or replacement in existing systems. It is available in an 8-pin DIP, SOIC, and other packages, making it adaptable for various design requirements.
Overall, the MAX485ED is suitable for applications requiring reliable data transmission, such as industrial control networks, building automation, and automotive systems.
Key features of the MAX485ED include low power consumption, with a supply current of only 300 µA, and the ability to operate from a single +5V supply. It supports data rates up to 2.5 Mbps and features a slew rate-limited version for reduced EMI. The device is built with fail-safe receiver inputs, ensuring a defined output with open, shorted, or terminated input lines.
The MAX485ED is pin-compatible with other industry-standard RS-485 transceivers, facilitating easy integration or replacement in existing systems. It is available in an 8-pin DIP, SOIC, and other packages, making it adaptable for various design requirements.
Overall, the MAX485ED is suitable for applications requiring reliable data transmission, such as industrial control networks, building automation, and automotive systems.
Equivalent
The MAX485ED is a low-power RS-485/RS-422 transceiver. Equivalent products include:
1. TI SN75176
2. TI ADM485
3. TI DS75176B
4. LT LTC485
5. Microchip MCP485E
These alternatives offer similar functionalities in terms of differential signaling for long-distance communication. Always verify pin configurations and electrical characteristics to ensure compatibility with your specific application.
1. TI SN75176
2. TI ADM485
3. TI DS75176B
4. LT LTC485
5. Microchip MCP485E
These alternatives offer similar functionalities in terms of differential signaling for long-distance communication. Always verify pin configurations and electrical characteristics to ensure compatibility with your specific application.
Features
The MAX485ED is a low-power transceiver for RS-485 and RS-422 communication. It features a wide supply voltage range from 4.75V to 5.25V, making it suitable for various applications. The device supports data rates up to 2.5 Mbps, ensuring reliable high-speed communication over long distances. It has a low quiescent current of 300 µA, making it ideal for battery-powered and energy-efficient systems.
The MAX485ED offers fail-safe operation, ensuring the receiver outputs a known state when inputs are open, shorted, or terminated but undriven. It includes a thermal shutdown feature to prevent damage from excessive heat. The device has a -7V to +12V common-mode input voltage range, enhancing noise immunity. Its short-circuit protection and ESD protection up to ±15 kV (HBM) enhance the device's robustness.
With its half-duplex operation mode, the MAX485ED allows for two-way data communication over a single twisted pair, reducing cabling costs. The device is packaged in an 8-pin DIP, SOIC, or TSSOP, allowing for flexible design options.
The MAX485ED offers fail-safe operation, ensuring the receiver outputs a known state when inputs are open, shorted, or terminated but undriven. It includes a thermal shutdown feature to prevent damage from excessive heat. The device has a -7V to +12V common-mode input voltage range, enhancing noise immunity. Its short-circuit protection and ESD protection up to ±15 kV (HBM) enhance the device's robustness.
With its half-duplex operation mode, the MAX485ED allows for two-way data communication over a single twisted pair, reducing cabling costs. The device is packaged in an 8-pin DIP, SOIC, or TSSOP, allowing for flexible design options.
Pinout
The MAX485ED is an integrated circuit used for RS-485 and RS-422 communication, known for its low power consumption and high-speed operation. It is an 8-pin SOIC (Small Outline Integrated Circuit) package. Here's a concise description of its pin functions:
1. RO (Receiver Output): This pin outputs the received data from the bus.
2. RE (Receiver Enable): This pin controls the receiver. A low level enables the receiver, and a high level disables it.
3. DE (Driver Enable): This pin controls the driver. A high level enables the driver, and a low level disables it.
4. DI (Driver Input): This pin inputs the data to be transmitted on the bus.
5. GND: Ground reference for the IC.
6. A (Non-Inverting Receiver Input/Driver Output): This pin serves as a non-inverting receiver input and driver output.
7. B (Inverting Receiver Input/Driver Output): This pin serves as an inverting receiver input and driver output.
8. VCC: Supply voltage input for the IC, typically 5V.
The MAX485ED is widely used in data communication networks, enabling long-distance and reliable data transmission over twisted-pair cables.
1. RO (Receiver Output): This pin outputs the received data from the bus.
2. RE (Receiver Enable): This pin controls the receiver. A low level enables the receiver, and a high level disables it.
3. DE (Driver Enable): This pin controls the driver. A high level enables the driver, and a low level disables it.
4. DI (Driver Input): This pin inputs the data to be transmitted on the bus.
5. GND: Ground reference for the IC.
6. A (Non-Inverting Receiver Input/Driver Output): This pin serves as a non-inverting receiver input and driver output.
7. B (Inverting Receiver Input/Driver Output): This pin serves as an inverting receiver input and driver output.
8. VCC: Supply voltage input for the IC, typically 5V.
The MAX485ED is widely used in data communication networks, enabling long-distance and reliable data transmission over twisted-pair cables.
Manufacturer
The MAX485ED is manufactured by Maxim Integrated, which is a company known for designing, manufacturing, and selling analog and mixed-signal integrated circuits. Maxim Integrated provides a wide range of products used in consumer, automotive, industrial, and communication markets. The company is recognized for its expertise in semiconductor technologies, including sensors, amplifiers, and power management ICs. In 2021, Maxim Integrated was acquired by Analog Devices, Inc., another prominent player in the semiconductor industry, which further expanded its product offerings and market reach.
Application
The MAX485ED is a low-power transceiver for RS-485 and RS-422 communication systems, commonly used in industrial and commercial applications. Key areas include:
1. Serial Communication: Enabling long-distance and noise-resistant data transmission in serial communication systems.
2. Industrial Automation: Facilitating communication between sensors, actuators, and controllers.
3. Building Automation: Used in systems like HVAC control and security systems for reliable data exchange.
4. Networking: Employed in local area networks (LANs) for data communication.
5. Telecommunications: Used in transmission systems for robust data integrity.
6. Energy Management: Applied in smart meters and grid communication systems for efficient data flow.
Its low power consumption and high data rate capabilities make it ideal for these applications.
1. Serial Communication: Enabling long-distance and noise-resistant data transmission in serial communication systems.
2. Industrial Automation: Facilitating communication between sensors, actuators, and controllers.
3. Building Automation: Used in systems like HVAC control and security systems for reliable data exchange.
4. Networking: Employed in local area networks (LANs) for data communication.
5. Telecommunications: Used in transmission systems for robust data integrity.
6. Energy Management: Applied in smart meters and grid communication systems for efficient data flow.
Its low power consumption and high data rate capabilities make it ideal for these applications.
Package
The MAX485ED is typically housed in an 8-pin SOIC (Small Outline Integrated Circuit) package. This package is compact and suitable for surface mounting on printed circuit boards, making it ideal for applications requiring efficient space utilization.
