ADM3251E

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ADM3251E

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規格

屬性 價值
Mounting Style SMD/SMT
Number of Channels 1 Channel
Polarity Bidirectional
Isolation Voltage 2500 Vrms
Isolation Type Magnetic Coupling
Minimum Operating Temperature - 40 C
Maximum Operating Temperature + 85 C
Packaging Tube
Brand Analog Devices
Product Type Digital Isolators
Factory Pack Quantity:Factory Pack Quantity 37
Subcategory Interface ICs

概述

Description

ADM3251E is a high-performance, isolated RS-485 transceiver designed for robust communication in industrial environments. It features integrated isolation technology, which protects against voltage spikes and ensures reliable data transmission over long distances. The device supports data rates up to 1 Mbps and operates in a wide temperature range, making it suitable for various applications, including industrial automation, automation systems, and networking equipment.
Key features include low power consumption, a small footprint, and built-in protection against electrical noise. The ADM3251E is particularly beneficial in environments where ground potential differences can cause communication issues. Its isolation barrier helps maintain signal integrity and enhances system reliability.
This transceiver is commonly used in half-duplex communication systems, allowing multiple devices to communicate over a single pair of wires. Overall, the ADM3251E delivers a combination of performance, efficiency, and safety, making it an ideal choice for engineers looking to implement robust RS-485 communication solutions.

Equivalent

The ADM3251E is a low-power, isolated RS-232 transceiver. Equivalent products include the MAX3485, Texas Instruments' ISO1042, and the STMicroelectronics ST3232. Other alternatives are the ADM3250E and the MAX232, depending on specific application requirements such as voltage levels and isolation features. Always check the datasheets for compatibility and specifications.

Features

The ADM3251E is a high-performance, isolated RS-232 transceiver designed for data communication in industrial applications. Key features include:
1. Isolation: It offers up to 2.5 kV isolation, ensuring safety and protecting against surges.
2. Low Power Consumption: The device operates efficiently, making it suitable for battery-powered applications.
3. Data Rate: Supports data rates up to 250 kbps, enabling fast communication.
4. Wide Voltage Range: It operates over a supply voltage range of 3 V to 5.5 V, allowing compatibility with various systems.
5. Integrated Protection: Built-in ESD protection enhances reliability against electrostatic discharge.
6. Compact Package: Available in a small footprint, ideal for space-constrained designs.
7. High Noise Immunity: Designed to perform well in noisy environments, ensuring reliable data transmission.
Overall, the ADM3251E combines robust performance with essential features for reliable RS-232 communication in isolated applications.

Pinout

The ADM3251E is a robust RS-232 transceiver that operates with a pin count of 16 pins. Its primary function is to facilitate serial data communication between devices, converting TTL/CMOS logic levels to RS-232 voltage levels, and vice versa.
Key pin functions include:
1. TXD (Transmit Data): TTL output for transmitting data.
2. RXD (Receive Data): TTL input for receiving data.
3. VCC: Supply voltage.
4. GND: Ground reference.
5. V+ and V-: RS-232 voltage levels.
6. RIN and ROUT: For receiving and outputting RS-232 signals.
7. C1 and C2: Capacitors for charge pumps (internal).
8. N/C: Not connected pins.
The ADM3251E supports high-speed communication and features built-in protection against electrostatic discharge (ESD), making it suitable for industrial and automotive applications.

Manufacturer

The ADM3251E is manufactured by Analog Devices, Inc. Founded in 1965, Analog Devices is a multinational company specializing in analog, mixed-signal, and digital signal processing (DSP) integrated circuits. The company is known for its innovative solutions in various sectors, including industrial automation, automotive, communications, and consumer electronics.
Analog Devices designs products that are essential for converting real-world phenomena—such as temperature, pressure, sound, light, and motion—into electronic signals. Their portfolio includes amplifiers, converters, sensors, and various interface products, like the ADM3251E, which is a high-speed, full-duplex RS-232 transceiver designed for data communication and control applications.
With a strong focus on research and development, Analog Devices is recognized for its commitment to technological advancement and quality, catering to a diverse range of applications that require precision and reliability in electronic systems. The company operates globally, providing support and solutions to engineers and businesses looking to integrate high-performance technology into their products.

Application

The ADM3251E is an RS-232 transceiver that is used in various application areas, including industrial automation, point-of-sale systems, medical devices, and telecommunications. It facilitates reliable serial communication over long distances and is suitable for connecting microcontrollers to RS-232 devices. The device is also employed in data acquisition systems, remote monitoring, and control applications, where robust data transmission is essential. Its low power consumption and integrated ESD protection make it ideal for battery-operated devices and environments sensitive to electrical noise.

Package

The ADM3251E is available in a 16-lead TSSOP (Thin Shrink Small Outline Package) and a 16-lead SOIC (Small Outline Integrated Circuit) package.