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MAX487ESA+

Name: MAX487ESA+
Rating: 4.7 (12 reviews)

IC TRANSCEIVER HALF 1/1 8SOIC

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製造商。部分 #MAX487ESA+
包 SOIC-8
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規格

Package	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 MAX487ESA+ is a low-power, high-speed RS-485/RS-422 transceiver designed for data communication over long distances in noisy environments. It operates with a single supply voltage of 5V and features a low quiescent current of just 120 µA, making it suitable for battery-powered applications. The device supports data rates up to 2.5 Mbps and can drive up to 32 transceivers on a bus, ensuring robust multi-point communication.
Key features include a wide operating temperature range (-40°C to +85°C), thermal shutdown protection, and fail-safe design that ensures a known output state in the absence of a valid input signal. Its small 8-pin SOIC package allows for space-constrained designs.
Applications include industrial automation, telecommunications, and remote sensing where reliable data transmission over twisted-pair cabling is essential. The MAX487ESA+ is an ideal choice for engineers looking for a reliable and efficient solution for RS-485/RS-422 communication.

Features

The MAX487ESA+ is a low-power EIA-485/RS-422 transceiver designed for data communication in multipoint systems. Key features include:
1. Low Power Consumption: Operates with a maximum supply current of 120 µA, making it ideal for battery-powered applications.
2. Wide Supply Voltage Range: Supports 3.0V to 5.5V, allowing flexibility in system design.
3. High Data Rate: Capable of transmitting data at speeds up to 2.5 Mbps.
4. Enhanced Driver Features: Includes a high-impedance input, allowing for easy connection in bus configurations.
5. Robust Protection: Features thermal shutdown and short-circuit protection for increased reliability.
6. Wide Operating Temperature: Functional over a temperature range of -40°C to +85°C, suitable for industrial applications.
7. Low Signal Distortion: Provides good signal integrity over long distances.
These characteristics make the MAX487ESA+ suitable for various communication applications, including industrial networks, data acquisition systems, and remote sensor management.

Package

The MAX487ESA+ is packaged in a 8-PDIP (Plastic Dual In-Line Package) configuration. This package type features through-hole mounting and is commonly used for ease of handling and soldering in various electronic applications.

Pinout

The MAX487ESA+ is a low-power RS-485/RS-422 transceiver that features a total of 8 pins. The pin functions are as follows:
1. A (Pin 1) - Non-inverting receiver input.
2. B (Pin 2) - Inverting receiver input.
3. RO (Pin 3) - Receiver output.
4. RE (Pin 4) - Receiver enable (active low).
5. DE (Pin 5) - Driver enable (active high).
6. DI (Pin 6) - Driver input.
7. GND (Pin 7) - Ground.
8. VCC (Pin 8) - Power supply voltage.
The device supports half-duplex communication and is designed for long-distance data transmission in noisy environments, making it suitable for industrial applications.

Manufacturer

The MAX487ESA+ is manufactured by Maxim Integrated, which is a semiconductor company known for designing and manufacturing analog and mixed-signal integrated circuits. Founded in 1983, Maxim Integrated specializes in various applications, including power management, signal processing, and data conversion. The company serves a wide range of industries, including automotive, communications, healthcare, and industrial. In 2020, Maxim Integrated was acquired by Analog Devices, Inc., further expanding its portfolio and market reach.

Application

The MAX487ESA+ is a low-power transceiver used in RS-485 and RS-422 communication systems. Its application areas include industrial automation, building automation, data acquisition systems, motor control systems, and telecommunications. It is ideal for long-distance data transmission in noisy environments due to its differential signaling and can be used in multi-drop networks, enabling multiple devices to communicate over a single bus.

Equivalent

The MAX487ESA+ chip is a low-power RS-485/RS-422 transceiver. Equivalent products include:
1. SN75176B (Texas Instruments)
2. LTC2862 (Analog Devices)
3. ADM2483 (Analog Devices)
4. SP485 (Texas Instruments)
5. MAX3485 (Maxim Integrated)
Ensure to check specific parameters like voltage levels, data rates, and package types for compatibility.