LTM2881IY-3

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LTM2881IY-3

+BOM

DG ISO 2.5KV 2CH RS422 32-BBGA

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  • メーカー品番 #LTM2881IY-3

  • データシート LTM2881IY-3 DataSheet

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仕様

属性
Series µModule®
Part Status Active
Technology Magnetic Coupling
Type RS422, RS485
Isolated Power Yes
Number of Channels 2
Inputs - Side 1/Side 2 1/1
Channel Type Unidirectional
Voltage - Isolation 2500Vrms
Common Mode Transient Immunity (Min) 30kV/µs
Data Rate 20Mbps
Voltage - Supply 3V ~ 3.6V
Operating Temperature -40°C ~ 85°C
Mounting Type Surface Mount
Package / Case 32-BBGA Module
Supplier Device Package 32-BGA (15x11.25)
Base Product Number LTM2881

概要

Description

The LTM2881IY-3 is an integrated circuit designed by Analog Devices, primarily used for isolated data communication applications. It features a complete galvanic isolation system, which includes a signal and power isolation barrier. This ensures that data transmission is immune to ground differences and common-mode noise, enhancing reliability and safety in industrial and medical applications.
Key features of the LTM2881IY-3 include:
1. Isolated Interface: It offers an isolated RS-485/RS-422 transceiver, providing robust communication over long distances.
2. Integrated DC/DC Converter: Supplies power to the isolated side, eliminating the need for an external power supply.
3. High Data Rates: Supports data rates up to 20 Mbps, suitable for high-speed applications.
4. Safety and Immunity: Provides reinforced isolation for up to 2500 VRMS, ensuring safety in high-voltage environments.
5. Wide Operating Range: Functions effectively over a wide temperature range, making it suitable for various industrial settings.
Overall, the LTM2881IY-3 is ideal for applications requiring secure, reliable, and high-speed isolated data communication.

Equivalent

The LTM2881IY-3 is an isolated RS-485/RS-422 transceiver with power from Analog Devices. Equivalent products include the ISO3082 from Texas Instruments, the ADM2582E from Analog Devices, and the IL485 from NVE Corporation. These alternatives provide similar isolated communication capabilities and are used in industrial and data communication applications. When considering replacements, ensure that specifications such as data rate, isolation voltage, and operating temperature meet your requirements.

Features

The LTM2881IY-3 is an isolated RS485/RS422 transceiver module with several key features:
1. Isolation: Provides up to 2500VRMS isolation, separating the logic level and field-side interfaces.
2. Integrated Power: Includes an isolated power supply, eliminating the need for a separate power source for the isolated side.
3. Data Rates: Supports data rates up to 20Mbps, making it suitable for high-speed communication.
4. Full-Duplex Operation: Capable of full-duplex communication, supporting both RS485 and RS422 protocols.
5. Robustness: Includes ±15kV ESD protection on the transceiver interface.
6. Easy Implementation: Comes in a compact BGA package, simplifying PCB layout and reducing design complexity.
7. Wide Temperature Range: Operates over a temperature range of -40°C to +85°C.
8. Fail-Safe Operation: Features fail-safe receiver operation, ensuring predictable behavior under fault conditions.
9. Low EMI: Designed to minimize electromagnetic interference, improving system reliability.
These features make the LTM2881IY-3 well-suited for industrial, automotive, and communication applications requiring robust isolation and reliable data transmission.

Pinout

The LTM2881IY-3 is an isolated RS485/RS422 transceiver module with power. It typically features a 20-pin configuration. This device is designed to ensure robust communication between systems by providing complete galvanic isolation of the data and power lines. The LTM2881IY-3 integrates signal and power isolation, and it can transfer data at rates of up to 20 Mbps.
Key functions of the LTM2881IY-3 include:
1. Isolation: Provides 2500VRMS isolation for the RS485/RS422 data lines and power, protecting against ground loops and common-mode voltages.
2. Power Supply: Incorporates an isolated DC/DC converter to supply power to the isolated side of the device.
3. Communication: Supports full-duplex differential communication compatible with RS485/RS422 standards.
4. Data Integrity: Features fail-safe receiver inputs to ensure a stable output in the presence of an open or shorted input.
This combination of features makes the LTM2881IY-3 suitable for industrial, medical, and data communication applications requiring isolation and reliable data transmission.

Manufacturer

The LTM2881IY-3 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. The company serves a wide range of industries including automotive, communications, consumer electronics, and healthcare, among others. Analog Devices is known for providing high-performance solutions that are used in various applications, including data conversion, signal processing, and power management.

Application

The LTM2881IY-3 is an isolated RS485/RS422 transceiver module, designed for applications requiring robust data communication across electrical isolation barriers. Its primary application areas include industrial automation and control, where it facilitates communication between devices in environments prone to electrical noise. Additionally, it is used in data acquisition systems to ensure reliable data transfer over long distances, and in network infrastructure to provide isolated data paths, enhancing safety and signal integrity. It is also suitable for use in renewable energy systems, medical equipment, and any application requiring high-speed, isolated data transmission.

Package

The LTM2881IY-3 is a uModule isolated RS485/RS422 transceiver with an integrated DC/DC converter. It comes in a 15mm x 11.25mm x 3.42mm BGA (Ball Grid Array) package.

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