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MAX3485ESA+

Name: MAX3485ESA+
Rating: 4.7 (12 reviews)

IC TRANSCEIVER HALF 1/1 8SOIC

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規格

Part Status	Active
Base Product Number	MAX3485
Type	Transceiver
Protocol	RS422, RS485
Number of Drivers/Receivers	1/1
Duplex	Half
Data Rate	10Mbps
Voltage - Supply	3V ~ 3.6V
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Package	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package	8-SOIC
Packaging	Tube
Receiver Hysteresis	50 mV

概述

Description

The MAX3485ESA+ is a low-power, half-duplex RS-485/RS-422 transceiver designed for robust data communication over long distances in noisy environments. It operates with a supply voltage range of 3.0V to 5.5V, making it suitable for battery-operated devices. The device supports data rates up to 2.5 Mbps and features a unique fail-safe design that ensures a known state even when the bus is idle or under fault conditions.
This transceiver includes an integrated, low-power wake-up feature, allowing it to conserve energy when not in use. It features a differential output, which enhances signal integrity and minimizes electromagnetic interference. The MAX3485ESA+ is suitable for various applications, including industrial automation, motor control, and data acquisition systems. Its compact SOIC package ensures easy integration into space-constrained designs. Overall, the MAX3485ESA+ is ideal for reliable, high-speed communication in challenging environments.

Features

The MAX3485ESA+ is a low-power, half-duplex RS-485/RS-422 transceiver designed for data communication over long distances. Key features include:
1. Low Power Consumption: Operates with a supply voltage of 3.0V to 5.5V, consuming only 120µA in standby mode.
2. Data Rate: Supports data rates up to 250 kbps.
3. Enhanced Noise Immunity: Provides robust performance in electrically noisy environments, thanks to differential signaling.
4. Wide Common-Mode Range: The device accommodates a common-mode voltage range from -7V to +12V, ensuring reliable communication in various conditions.
5. Fault Protection: Features integrated short-circuit protection for improved reliability.
6. Integration: Comes in a standard 8-pin SOIC package, facilitating easy integration into various designs.
7. Driver and Receiver: Contains one driver and one receiver, suitable for point-to-multipoint communication.
These features make the MAX3485ESA+ ideal for industrial applications, remote sensing, and process control systems.

Package

The MAX3485ESA+ is packaged in an 8-pin SOIC (Small Outline Integrated Circuit) format.

Pinout

The MAX3485ESA+ is a low-power, half-duplex RS-485/RS-422 transceiver featuring a pin count of 8. Its primary functions include facilitating differential data transmission over long distances and providing robust noise immunity.
The pinout includes:
1. RO (Receive Out): Differential receiver output.
2. RE (Receiver Enable): Active low to enable the receiver.
3. DE (Driver Enable): Active high to enable the driver.
4. DI (Driver Input): Data input to the driver.
5. A: Non-inverting differential output.
6. B: Inverting differential output.
7. GND: Ground reference.
8. VCC: Supply voltage (typically +3.3V to +5V).
This device is commonly used in telecommunications, industrial automation, and data acquisition systems for reliable communication over twisted-pair cabling.

Manufacturer

The MAX3485ESA+ is manufactured by Maxim Integrated, which is a semiconductor company specializing in analog and mixed-signal integrated circuits. Founded in 1983, Maxim Integrated designs and produces a wide range of products, including power management, interface, and sensor solutions. The company focuses on providing high-performance and innovative technologies for various applications, including industrial, automotive, communications, and consumer electronics. In 2021, Maxim Integrated was acquired by Analog Devices, Inc., enhancing its capabilities in the semiconductor market.

Application

The MAX3485ESA+ is a half-duplex RS-485/RS-422 transceiver used in various applications such as industrial automation, data acquisition systems, and remote sensor networks. It is ideal for long-distance communication in noisy environments, making it suitable for building automation, automotive systems, and telecommunications. Its low power consumption and robust performance also make it useful in point-to-point and multipoint communication systems.

Equivalent

The MAX3485ESA+ is a low-power RS-485/RS-422 transceiver. Equivalent products include:
1. SN75176B - Texas Instruments
2. SP485 - Analog Devices
3. LT1785 - Linear Technology
4. ADM2483 - Analog Devices
These alternatives may vary in features and specifications, so it's important to check the datasheets for exact compatibility.