MAX485ESA

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MAX485ESA

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IC TRANSCEIVER HALF 1/1 8SOIC

  • メーカーアナログ・デバイセズ社/マキシム・インテグレーテッド

  • メーカー品番 #MAX485ESA

  • 在庫状況3551

365 日間品質保証

7*24 日間の品質保証

90-時間単位のサービス保証

1日間のアフターサービス保証

仕様

属性
Part Status Obsolete
Type Transceiver
Protocol RS422, RS485
Number of Drivers/Receivers 1/1
Duplex Half
Receiver Hysteresis 70 mV
Data Rate 2.5Mbps
Voltage - Supply 4.75V ~ 5.25V
Operating Temperature -40°C ~ 85°C
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package 8-SOIC
Base Product Number MAX485

概要

Description

The MAX485ESA is a low-power, half-duplex RS-485/RS-422 transceiver designed for multipoint data transmission applications. It operates over a wide voltage range of 3.0V to 5.5V and can transmit data at speeds up to 2.5 Mbps. The device features a differential output to provide robust noise immunity and long-distance communication capabilities, making it suitable for industrial automation, building automation, and networking applications.
The MAX485ESA includes a slew rate limited driver for reducing electromagnetic interference (EMI) and offers a low power consumption mode, making it efficient for battery-operated devices. Its compact 8-pin SOIC package allows for easy integration into various electronic designs.
Key specifications include a maximum data transmission distance of up to 4000 feet (1200 meters) at lower baud rates, making it ideal for long-distance communication. The device is also equipped with thermal shutdown and short-circuit protection features, enhancing reliability. Overall, the MAX485ESA is a versatile solution for reliable, long-distance serial communication in noisy environments.

Equivalent

Equivalent products to the MAX485ESA chip include the SN75176, LTC2862, ADM2483, and AM26LS31. These chips provide similar functionality for RS-485 communication, featuring low power consumption and differential signaling capabilities. Always check specific datasheets for detailed specifications and compatibility.

Features

The MAX485ESA is a low-power, half-duplex RS-485 transceiver designed for serial communications over long distances. Key features include:
1. Low Power Consumption: Operates with a supply voltage of 3.0V to 5.25V, drawing only 120 µA in sleep mode.
2. Data Rate: Supports transmission speeds up to 2.5 Mbps.
3. Wide Operating Temperature: Functional across -40°C to +85°C.
4. High Noise Immunity: Features a differential signal that enhances noise immunity, making it suitable for industrial environments.
5. Multiple Drivers and Receivers: Allows up to 32 transceivers on the same bus, supporting multi-point communication.
6. Short-Circuit Protection: Designed to prevent damage from short circuits.
7. Small Package: Available in a 8-pin DIP or SOIC package, making it suitable for space-constrained applications.
These attributes make the MAX485ESA ideal for industrial automation, data acquisition, and other applications requiring robust serial communication.

Pinout

The MAX485ESA is an integrated circuit designed for low-power, half-duplex RS-485 communication. It features a total of 8 pins. Here is a brief overview of the pin functions:
1. RO (Receive Output): This pin outputs the received data from the RS-485 bus.
2. RE (Receive Enable): This pin enables the receiver when LOW and disables it when HIGH.
3. DE (Driver Enable): This pin enables the driver when HIGH and disables it when LOW.
4. DI (Driver Input): This pin accepts the data to be transmitted over the RS-485 bus.
5. A (Non-inverting Input): This pin connects to the non-inverting side of the differential output.
6. B (Inverting Input): This pin connects to the inverting side of the differential output.
7. VCC: This pin is the power supply for the IC, typically +5V.
8. GND: This pin is the ground reference for the device.
The MAX485ESA is widely used for long-distance data transmission in industrial applications.

Manufacturer

The MAX485ESA is manufactured by Maxim Integrated, a company known for its design and production of analog and mixed-signal integrated circuits. Founded in 1983, Maxim Integrated specializes in high-performance semiconductor solutions that cater to a wide range of applications, including communications, automotive, industrial, and consumer electronics. The company is recognized for its innovative products that enhance the functionality and efficiency of electronic systems. In 2021, Maxim Integrated was acquired by Analog Devices, Inc., further expanding its portfolio and market reach in the semiconductor industry.

Application

The MAX485ESA is a low-power, half-duplex RS-485 transceiver used in various applications, including:
1. Industrial Automation: For communication between sensors, controllers, and actuators in harsh environments.
2. Data Acquisition Systems: Facilitates long-distance data transmission in monitoring systems.
3. Telecommunications: Used in network devices for reliable data transfer over twisted-pair cables.
4. Building Automation: Enables control and monitoring of lighting, HVAC, and security systems.
5. Embedded Systems: Commonly found in microcontroller projects requiring robust serial communication.
Its low power consumption, high noise immunity, and long-distance capability make it suitable for these applications.

Package

The MAX485ESA is available in an 8-pin DIP (Dual In-line Package) configuration. This package type is designed for easy integration into various electronic circuits, providing a compact footprint suitable for through-hole mounting.

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