MAX487EESA+

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MAX487EESA+

IC TRANSCEIVER HALF 1/1 8SOIC

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  • 製造商。 部分 #MAX487EESA+
  • SOIC-8
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規格

Package Tube,Tube
ProductStatus Obsolete
Type Transceiver
Protocol RS422, RS485
NumberofDrivers/Receivers 1/1
Duplex Half
ReceiverHysteresis 70 mV
DataRate 250kbps
Voltage-Supply 4.75V ~ 5.25V
OperatingTemperature -40°C ~ 85°C
MountingType Surface Mount
Package/Case 8-SOIC (0.154, 3.90mm Width)

概述

Description

The MAX487EESA+ is a low-power, differential line transceiver designed for RS-485 and RS-422 communication standards. It features a small, robust package suitable for industrial applications that require reliable data transmission over long distances. The device supports half-duplex communication and can operate at data rates up to 2.5 Mbps, making it ideal for networks in noisy environments.
Key features include a wide supply voltage range (4.75V to 5.25V), low quiescent current, and thermal shutdown protection. The MAX487EESA+ can drive up to 32 transceivers on a single bus, allowing for multi-point communication. Its built-in fail-safe features ensure that it maintains a known state during power loss or line faults.
With its combination of performance, ease of use, and low power consumption, the MAX487EESA+ is suitable for various applications, including automation, data acquisition, and industrial control systems.

Features

The MAX487EESA+ is a low-power RS-485/RS-422 transceiver designed for high-speed data communication. Key features include:
1. Low Power Consumption: Operates with a supply voltage of 3.0V to 5.5V, consuming only 300µA (max) in standby mode.
2. Data Rate: Supports data rates up to 2.5 Mbps, ensuring efficient communication over long distances.
3. Extended Temperature Range: Suitable for industrial applications with a temperature range of -40°C to +85°C.
4. Voltage Levels: Compatible with both RS-485 and RS-422 standards, allowing for versatile use in various systems.
5. High Noise Immunity: Features a differential signaling approach, providing robust performance against noise and crosstalk.
6. Built-in Fail-Safe: Includes fail-safe circuitry that ensures the receiver outputs a high level when the inputs are open or shorted.
7. Small Package: Available in an 8-pin SOIC package, facilitating space-efficient designs.
These features make the MAX487EESA+ ideal for multi-point communication applications such as industrial control systems and data acquisition networks.

Package

The MAX487EESA+ is packaged in an 8-pin SOIC (Small Outline Integrated Circuit) format. This package type is characterized by its low-profile and surface-mount design, suitable for compact electronic applications.

Pinout

The MAX487EESA+ is a low-power RS-485/RS-422 transceiver with a pin count of 8.
Pin functions:
1. 1 (RO): Receiver Output - Outputs the data received from the bus.
2. 2 (RE): Receiver Enable - Active low; enables the receiver when connected to ground.
3. 3 (DE): Driver Enable - Active high; enables the driver when connected to a high voltage.
4. 4 (DI): Driver Input - Accepts the data to be transmitted.
5. 5 (GND): Ground - Common ground reference.
6. 6 (A): Non-inverting Driver Output - Connects to the A terminal of the RS-485 bus.
7. 7 (B): Inverting Driver Output - Connects to the B terminal of the RS-485 bus.
8. 8 (VCC): Supply Voltage - Provides power to the transceiver, typically +5V.
This device is designed for half-duplex communication, making it suitable for long-distance data transmission in noisy environments.

Manufacturer

The MAX487EESA+ is manufactured by Maxim Integrated, which is now part of Analog Devices, Inc. Maxim Integrated was known for designing and manufacturing analog and mixed-signal integrated circuits (ICs) used in various applications, including communication, automotive, industrial, and consumer electronics. The company specialized in innovative solutions for signal processing, power management, and interface applications. After being acquired by Analog Devices in 2021, it continued to operate under the Analog Devices brand, further enhancing their portfolio in high-performance analog technology.

Application

The MAX487EESA+ is a low-power, half-duplex RS-485/RS-422 transceiver commonly used in industrial automation, data acquisition systems, and serial communication applications. It is suitable for long-distance communication in noisy environments, such as factory automation, building automation, and remote sensor networks. Its low power consumption makes it ideal for battery-operated devices, while its robust design supports multi-point communication in various networking applications.

Equivalent

The MAX487EESA+ is a low-power RS-485 transceiver. Equivalent products include the SN75176B from Texas Instruments, the LTC2862 from Analog Devices, and the ADM2483 from Analog Devices. These alternatives provide similar functionality for differential signaling in RS-485 applications. Always verify specifications to ensure compatibility with your specific requirements.

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