ADM2587E

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ADM2587E

+BOM

Digital Isolators ISOLATED RS485 HD/FD 500kbps IC

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Specifications

Attribute Value
Packaging Tube
Standard Pack Qty 37

Overview

Description

The ADM2587E is an integrated signal and power isolated data transceiver designed for communication over RS-485 and RS-422 networks. It comes from Analog Devices and is specifically engineered to provide robust data transmission with built-in electrical isolation, which is crucial for protecting sensitive electronics from high voltage surges and noise in industrial environments.
Key features of the ADM2587E include:
1. Isolation: Provides 5 kV RMS isolation, ensuring safety and signal integrity between the bus lines and the transceiver's logic.
2. Data Rates: Supports data transfer rates up to 500 kbps, making it suitable for many industrial applications.
3. Integrated DC-to-DC Converter: Supplies power to the isolated side, eliminating the need for external isolated power supplies.
4. ESD Protection: Enhanced electrostatic discharge protection ensures the device's reliability in harsh conditions.
5. Fail-Safe Receiver: Guarantees a defined output state when bus lines are open or shorted.
Overall, the ADM2587E is ideal for applications requiring reliable, isolated data communication, such as factory automation, process control, and building automation systems.

Equivalent

The ADM2587E is an integrated isolated RS-485/RS-422 transceiver. Equivalent products could include:
1. Texas Instruments ISO3086: Isolated RS-485/RS-422 transceiver with integrated transformer driver.
2. Maxim Integrated MAX14853: Isolated RS-485/RS-422 transceiver.
3. Silicon Labs Si8661: Isolated half-duplex RS-485 transceiver.
4. Broadcom ACPL-M61T: Isolated RS-485/RS-422 transceiver.
Ensure compatibility in terms of voltage, speed, isolation rating, and other specific requirements for your application.

Features

The ADM2587E is an integrated signal and power isolated RS-485/RS-422 transceiver with additional features that enhance its performance and reliability in various industrial applications. Key features include:
1. Isolation: It provides 2.5 kVrms isolation between the logic input and the bus side, ensuring safety and noise immunity.
2. Integrated DC-to-DC Converter: This feature eliminates the need for an external power supply on the isolated side, simplifying design.
3. Data Rate: It supports data rates up to 500 kbps, suitable for many industrial communication standards.
4. ESD Protection: The device includes high ESD protection on the bus pins, enhancing robustness against electrostatic discharge events.
5. Fail-safe Operation: It has a fail-safe feature for open-circuit and bus idle conditions, providing a known state in the absence of input signals.
6. Thermal Shutdown: Over-temperature protection prevents damage under fault conditions.
7. Compact Package: Available in a small surface-mount package, it is suitable for space-constrained applications.
These features make the ADM2587E ideal for use in harsh industrial environments where reliability and space efficiency are critical.

Pinout

The ADM2587E is an isolated RS-485 transceiver with integrated signal and power isolation. It typically comes in a 20-lead SOIC (Small Outline Integrated Circuit) package. The pin count for the ADM2587E is 20.
Here’s a concise description of its key functions and pin assignments:
1. Power Supply Pins:
- VISOOUT: Isolated power output.
- VISOIN: Isolated power input.
- VDD1: Primary side power supply.
- GND1 and GND2: Ground pins for primary and secondary sides.
2. Data Interface Pins:
- TXD: Transmit data input.
- RXD: Receive data output.
- DE: Driver enable control.
- /RE: Receiver enable control.
3. RS-485 Bus Pins:
- A and B: Differential bus pins for RS-485 communication.
- Z and Y: Additional differential bus pins.
4. Miscellaneous:
- NC (No Connect): Several pins reserved for future use or left unconnected.
The ADM2587E provides signal and power isolation with high data rates and is typically used in industrial communication systems to ensure reliable long-distance data transmission.

Manufacturer

The ADM2587E is manufactured by Analog Devices, Inc. Analog Devices is a multinational company that specializes in the design and manufacturing of analog, mixed-signal, and digital signal processing (DSP) integrated circuits used in electronic equipment. The company serves a wide range of industries, including automotive, consumer electronics, communications, healthcare, and industrial automation. Analog Devices is known for its high-performance products that are used in sensors, converters, amplifiers, and microcontrollers, among other applications. The ADM2587E itself is an isolated RS-485 transceiver, which is used in communication networks to ensure reliable data transmission, especially in environments where electrical isolation and high data integrity are critical.

Application

The ADM2587E is commonly used in industrial automation and control systems, where it supports robust RS-485 communication. Its isolation features make it ideal for applications requiring protection against electrical noise and voltage spikes, such as motor control, PLCs (Programmable Logic Controllers), and factory automation. It's also used in building automation systems, such as HVAC controls and security systems, due to its ability to maintain reliable data transmission over long distances. Additionally, the ADM2587E is suitable for use in energy management systems, including smart grid and power distribution networks, where secure and stable communication is crucial.

Package

The ADM2587E is available in a 28-lead, wide-body SOIC (Small Outline Integrated Circuit) package.