ADM1485AR

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ADM1485AR

IC TX/RX RS-485 HS 5V 8SOIC

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Гарантия 365 дней

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Спецификации

Package Tube
ProductStatus Obsolete
Type Transceiver
Protocol RS485
NumberofDrivers/Receivers 1/1
Voltage-Supply 4.75V ~ 5.25V
MountingType Surface Mount
Package/Case 8-SOIC (0.154, 3.90mm Width)

Обзор

Description

The ADM1485AR is a high-speed, low-power RS-485 and RS-422 transceiver designed for reliable, long-distance communication in industrial applications. It features a data transmission rate of up to 20 Mbps and operates over a wide voltage range, typically from 3.3V to 5V, making it suitable for various logic levels.
This transceiver supports half-duplex communication and includes an integrated fail-safe mechanism to ensure proper operation in the absence of input signals. The device is designed with high noise immunity and can operate over distances of up to 4000 feet, making it ideal for remote sensor networks and automation systems.
The ADM1485AR comes in a compact SOIC package, which aids in space-constrained designs. It is often utilized in environments where robust communication is necessary, such as in industrial automation, process control, and data acquisition systems. Overall, the ADM1485AR is an effective solution for reliable and efficient data transmission in multi-point communications.

Features

The ADM1485AR is a low-power, half-duplex RS-485/RS-422 transceiver designed for reliable data communication in noisy environments. Key features include:
1. Data Rate: Supports data rates up to 2.5 Mbps.
2. Operating Voltage: Compatible with a supply voltage range of 3.0V to 5.5V.
3. Low Power Consumption: Typically 120 µA in low-power mode.
4. Driver Output: Capable of driving up to 32 unit loads, enabling multiple transmitters and receivers on the bus.
5. Enhanced Noise Immunity: Differential signaling helps reduce susceptibility to electromagnetic interference.
6. Temperature Range: Operates over an extended temperature range of -40°C to +85°C.
7. Short-Circuit Protection: Built-in protection against short circuits on the output pins.
8. Common Mode Range: Supports a wide common-mode voltage range of -7V to +12V.
These features make the ADM1485AR suitable for industrial automation, remote monitoring, and other applications requiring robust communication over long distances.

Package

The ADM1485AR is available in a 5-lead SOT-23 package type.

Pinout

The ADM1485AR is a low-power, full-duplex RS-485/RS-422 transceiver with a pin count of 8. Its primary functions include:
1. Transmitter Inputs (A, B): Pins 1 (A) and 2 (B) are the differential outputs for transmitting data.
2. Receiver Outputs (A, B): Pins 3 (A) and 4 (B) are the differential inputs for receiving data.
3. Driver Enable (DE): Pin 5 is used to enable the driver.
4. Receiver Enable (RE): Pin 6 allows for enabling/disabling the receiver.
5. Ground (GND): Pin 7 is the common reference ground.
6. VCC: Pin 8 is the power supply input, typically +5V.
The ADM1485AR features a wide common-mode input voltage range, high data rate capability, and is suitable for long-distance communication in noisy environments.

Manufacturer

The ADM1485AR is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company headquartered in Norwood, Massachusetts, USA. It specializes in high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits (ICs). Founded in 1965, the company serves various industries, including telecommunications, automotive, industrial automation, healthcare, and consumer electronics, by providing innovative solutions for signal processing and data conversion. The ADM1485AR itself is a low-power RS-485/RS-422 transceiver, commonly used in communication systems for data transmission over long distances.

Application

The ADM1485AR is a low-power, half-duplex RS-485 transceiver used in various applications, including industrial automation, data acquisition systems, building automation, and telecommunications. It facilitates long-distance communication in noisy environments, making it suitable for remote sensor networks, point-of-sale systems, and multi-drop networks in factory and process control applications.

Equivalent

Equivalent products to the ADM1485AR chip include the MAX1485, SN75176, and LTC1485. These chips are RS-485/RS-422 transceivers with similar specifications and functionalities, suitable for differential data transmission over long distances. Always verify the specific requirements and pin configurations for compatibility.

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