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MAX3490EESA

Name: MAX3490EESA
Rating: 4.7 (12 reviews)

IC TRANSCEIVER FULL 1/1 8SOIC

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規格

Part Status	Obsolete
Type	Transceiver
Protocol	RS422, RS485
Number of Drivers/Receivers	1/1
Duplex	Full
Receiver Hysteresis	50 mV
Data Rate	10Mbps
Voltage - Supply	3V ~ 3.6V
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	MAX3490

概述

Description

The MAX3490EESA is a high-speed, low-power transceiver designed for use in RS-485 and RS-422 communication systems. It supports data rates up to 20 Mbps and features a robust differential signaling mechanism that enhances noise immunity over long distances. This device operates from a single 3.0V to 5.5V power supply and is suitable for half-duplex communication applications.
Key features include integrated fail-safe biasing, allowing it to maintain a known state during idle conditions, and low power consumption, making it ideal for battery-operated devices. The MAX3490EESA also offers thermal shutdown protection, which safeguards the device against overheating. Its small footprint and industrial-grade reliability make it suitable for various applications, including factory automation, process control, and remote data acquisition systems.
Overall, the MAX3490EESA is an excellent choice for efficient and reliable serial communication in demanding environments.

Features

The MAX3490EESA is a low-power, RS-485/RS-422 transceiver designed for balanced data transmission. Key features include:
1. Data Rate: Supports data rates up to 20 Mbps.
2. Low Power Consumption: Operates with a low supply current, making it suitable for battery-powered applications.
3. Wide Supply Voltage Range: Functions with a supply voltage from 3.0V to 5.5V.
4. Fail-Safe Design: Implements fail-safe biasing to ensure a valid logic state in open-circuit or short-circuit conditions.
5. High Noise Immunity: Provides robust performance in noisy environments with high common-mode voltage range.
6. Thermal Shutdown: Features thermal shutdown protection for enhanced reliability.
7. Transmitter/Receiver Enable Control: Allows for easy control of the device’s active states.
8. Small Package: Available in an 8-pin SOIC package for compact designs.
These features make the MAX3490EESA suitable for industrial automation, data acquisition systems, and other applications requiring reliable serial communication over long distances.

Package

The MAX3490EESA is available in a 16-pin DIP (Dual In-line Package) form factor. This package type is suitable for through-hole mounting on printed circuit boards.

Pinout

The MAX3490EESA is an RS-485/RS-422 transceiver with a pin count of 8. It operates in half-duplex mode and is designed for multipoint communication on a single twisted pair cable.
Pin Functions:
1. 1 (A) - Inverting input/output for driver/receiver.
2. 2 (B) - Non-inverting input/output for driver/receiver.
3. 3 (RO) - Receiver output, connected to the receiving device.
4. 4 (RE) - Receiver enable; active low.
5. 5 (DE) - Driver enable; active high.
6. 6 (DI) - Driver input; data to be transmitted.
7. 7 (GND) - Ground connection.
8. 8 (VCC) - Positive power supply voltage.
The device supports a wide voltage range and features a low-power shutdown mode, making it suitable for low-power applications.

Manufacturer

The MAX3490EESA is manufactured by Maxim Integrated, which is now part of Analog Devices, Inc. Maxim Integrated is a semiconductor company that specializes in designing and manufacturing analog and mixed-signal integrated circuits. Their products are widely used in various applications, including automotive, industrial, consumer electronics, and communications. The company focuses on high-performance solutions that enhance the functionality, efficiency, and reliability of electronic systems.

Application

The MAX3490EESA is a low-power RS-485/RS-422 transceiver used in various applications including industrial automation, networking, remote monitoring, and control systems. It facilitates long-distance communication in harsh environments, making it suitable for building automation, data acquisition systems, and motor control. Its robust design ensures reliable data transmission in noisy conditions, making it ideal for applications requiring reliable communication over twisted pair cables.

Equivalent

Equivalent products to the MAX3490EESA chip include the Texas Instruments SN65HVD233, Analog Devices ADM2483, and the NXP PCA82C250. These chips also provide similar RS-485/RS-422 transceiver functionality with comparable specifications for communication applications. Always verify specific requirements and pin configurations before replacing components.