MAX490EESA+T

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MAX490EESA+T

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IC TRANSCEIVER FULL 1/1 8SOIC

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Thông số kỹ thuật

thuộc tính Giá trị
Supplier Analog Devices Inc./Maxim Integrated
Package Tape & Reel (TR)
ProductStatus Obsolete
Type Transceiver
Protocol RS422, RS485
NumberofDrivers/Receivers 1/1
Duplex Full
ReceiverHysteresis 70 mV
DataRate 2.5Mbps
Voltage-Supply 4.75V ~ 5.25V
OperatingTemperature -40°C ~ 85°C
MountingType Surface Mount
Package/Case 8-SOIC (0.154, 3.90mm Width)

Tổng quan

Description

The MAX490EESA+T is a low-power, robust RS-485/RS-422 transceiver designed for high-speed communication in industrial environments. It features a wide operating voltage range and enhanced electrostatic discharge (ESD) protection. The transceiver supports full-duplex communication, allowing simultaneous two-way data transmission, and is capable of operating at data rates up to 2.5 Mbps. It includes a driver and a receiver, each with tri-state functionality, enabling multiple devices to share the same communication bus. The MAX490EESA+T is particularly suited for applications requiring long-distance data transmission and high noise immunity.
Key features include:
- Low power consumption, making it ideal for battery-powered applications.
- ESD protection up to ±15 kV, providing robust operation in harsh environments.
- Fail-safe receiver inputs to ensure a known output state when inputs are open, shorted, or terminated.
- Compact 8-pin SOIC package for space-constrained designs.
Overall, the MAX490EESA+T offers reliable, high-speed communication for diverse industrial and commercial applications, ensuring efficient data exchange in complex systems.

Equivalent

The MAX490EESA+T is a low-power RS-485/RS-422 transceiver. Equivalent products include the Texas Instruments SN75176A, the Analog Devices ADM485, and the STMicroelectronics ST485. These alternatives offer similar functionalities such as differential signaling for high-speed communication and low power consumption, suitable for RS-485/RS-422 communication standards. Always verify the specifications and pin compatibility before substitution in your application.

Features

The MAX490EESA+T is a low-power, RS-485/RS-422 transceiver designed for reliable data communication in noisy environments. Key features include:
1. Low Power Consumption: It operates with reduced power, making it suitable for battery-powered and energy-efficient applications.
2. ±15kV ESD Protection: Offers robust electrostatic discharge protection on the transceiver's bus pins, enhancing durability and reliability.
3. Extended Common-Mode Range: It can handle a wide range of common-mode voltages, improving performance in environments with potential ground differences.
4. Fail-Safe Receiver: Ensures that the output remains in a known state when inputs are open, shorted, or idle, preventing communication errors.
5. Hot-Swap Capability: Allows the device to be inserted or removed from a live backplane without causing data corruption or device damage.
6. High Data Rate: Supports data rates up to 2.5Mbps, suitable for fast communication needs.
7. Wide Operating Temperature Range: Functions effectively over an extended temperature range, making it versatile for various industrial applications.
These features make the MAX490EESA+T ideal for use in telecommunications, industrial controls, and other environments requiring robust and efficient data transmission.

Pinout

The MAX490EESA+T is an RS-485/RS-422 transceiver, known for its low power consumption and high-speed communication capabilities. It comes in an 8-pin SOIC package. Here is a concise description of its pin count and function:
1. Pin 1 (RO): Receiver Output. This pin outputs the data received from the bus.
2. Pin 2 (RE̅): Receiver Output Enable. A low input enables the receiver output (RO), and a high input puts RO in high impedance.
3. Pin 3 (DE): Driver Enable. A high input enables the driver outputs (A and B), and a low input puts them in high impedance.
4. Pin 4 (DI): Driver Input. The data input for the driver.
5. Pin 5 (GND): Ground. The reference point for all signals.
6. Pin 6 (A): Non-Inverting Driver Output/Receiver Input.
7. Pin 7 (B): Inverting Driver Output/Receiver Input.
8. Pin 8 (VCC): Supply Voltage. Provides the power supply to the IC.
These functions allow the MAX490EESA+T to effectively handle differential communication over a network, making it suitable for various industrial and commercial applications.

Manufacturer

The MAX490EESA+T is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company specializing in the design and manufacturing of analog, mixed-signal, and digital signal processing (DSP) integrated circuits. These products are used in a wide array of applications, including industrial, automotive, consumer electronics, communications, healthcare, and more. The company is known for its innovation in signal processing and sensing technologies and provides solutions that bridge the physical and digital worlds.

Application

The MAX490EESA+T is a low-power, RS-485/RS-422 transceiver designed for robust communication in industrial and commercial applications. It is commonly used in areas such as industrial automation, process control, building automation systems, and networked security systems. Its features, like low power consumption, high data rates, and enhanced ESD protection, make it suitable for long-distance communication and environments with electrical noise. The transceiver is often used in HVAC systems, remote sensing, and any application requiring efficient bidirectional data communication over twisted-pair cables.

Package

The MAX490EESA+T is an 8-pin SOIC (Small Outline Integrated Circuit) package with a tape and reel option for automated assembly. It is typically used for RS-485/RS-422 communication transceivers.

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