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MAX485EESA

Name: MAX485EESA
Rating: 4.7 (12 reviews)

RS-485/RS-422 TRANSCVR

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規格

Package	Bulk
ProductStatus	Obsolete

概述

Description

The MAX485EESA is a low-power, multipoint serial communication transceiver designed for RS-485 and RS-422 applications. It facilitates long-distance data transmission over twisted-pair cables, making it suitable for industrial automation, telecommunications, and automation systems.
Key features include a wide voltage operating range (4.75V to 5.25V), low power consumption, and the ability to support data rates up to 2.5 Mbps. The device incorporates a differential signal output, which enhances noise immunity and allows for reliable communication over distances up to 4000 feet.
The MAX485EESA includes a half-duplex design, meaning it can either send or receive data, but not simultaneously. It is packaged in an 8-pin SSOP, making it compact and easy to integrate into various electronic designs. The transceiver provides robust ESD protection, ensuring durability in harsh environments. Overall, the MAX485EESA is a versatile solution for establishing reliable, long-range data communication in various applications.

Features

The MAX485EESA is a low-power, half-duplex RS-485/RS-422 transceiver designed for data communications over long distances. Key features include:
1. Low Power Consumption: Operates with a supply voltage of 3.0V to 5.5V, allowing for battery-efficient designs.
2. High Data Rate: Supports data rates up to 2.5 Mbps.
3. Wide Temperature Range: Suitable for industrial applications with an operating range of -40°C to +85°C.
4. Differential Signaling: Provides robust noise immunity and long-distance communication (up to 4000 feet).
5. Driver and Receiver: Contains one driver and one receiver, facilitating half-duplex communication.
6. Thermal Shutdown Protection: Built-in thermal protection enhances reliability.
7. Low Output Impedance: Ensures signal integrity and minimizes reflections on long cables.
8. Short-Circuit Protection: Safeguards the device from damage in fault conditions.
The MAX485EESA is widely used in industrial control systems, automation, and data acquisition applications.

Package

The MAX485EESA is packaged in a 8-pin DIP (Dual In-line Package) configuration.

Pinout

The MAX485EESA is an integrated circuit designed for low-power differential data transmission. It features a total of 8 pins. The pin configuration and functions are as follows:
1. RO (Receiver Output): Data output from the receiver.
2. RE (Receiver Enable): Active low input to enable the receiver; high disables the receiver.
3. DE (Driver Enable): Active high input to enable the driver; low disables the driver.
4. DI (Driver Input): Data input to the driver.
5. A (Non-inverting Driver Output): Positive terminal of the differential output.
6. B (Inverting Driver Output): Negative terminal of the differential output.
7. GND (Ground): Common ground reference.
8. VCC (Power Supply): Supply voltage input (typically +5V).
This device is commonly used in RS-485 applications for robust communication over long distances.

Manufacturer

The MAX485EESA is manufactured by Maxim Integrated, which is a company that specializes in designing and manufacturing analog and mixed-signal integrated circuits (ICs). Founded in 1983, Maxim Integrated focuses on providing innovative solutions for various applications, including communications, automotive, consumer electronics, and industrial markets. The company is known for its high-performance products such as data converters, amplifiers, and interface devices. In 2020, Maxim Integrated was acquired by Analog Devices, Inc., further expanding its capabilities and product offerings in the semiconductor industry.

Application

The MAX485EESA is a low-power, RS-485/RS-422 transceiver used in various applications, including industrial automation, data acquisition systems, and multi-drop communications. It is commonly employed in environments requiring long-distance data transmission, such as building automation, automotive networks, and remote sensor networks, as well as in point-to-point and multidrop configurations for robust serial communication. Its low power consumption makes it suitable for battery-operated devices.

Equivalent

Equivalent products to the MAX485EESA chip include the SN75176, LTC2862, ADM2485, and MAX3485. These chips are all low-power, half-duplex RS-485 transceivers suitable for similar applications. Always check datasheets for specific electrical characteristics and compatibility.