ADM4850ARZ

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ADM4850ARZ

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IC TRANSCEIVER HALF 1/1 8SOIC

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規格

屬性 價值
Package Tube
ProductStatus Active
Type Transceiver
Protocol RS422, RS485
NumberofDrivers/Receivers 1/1
Duplex Half
ReceiverHysteresis 20 mV
DataRate 250kbps
Voltage-Supply 4.75V ~ 5.25V
OperatingTemperature -40°C ~ 85°C
MountingType Surface Mount
Package/Case 8-SOIC (0.154, 3.90mm Width)

概述

Description

The ADM4850ARZ is a part of the ADM4850 series, which are high-speed, low-power CMOS transceivers used for RS-485 and RS-422 communication. These devices are designed to facilitate differential data transmission over long distances in noisy environments. The ADM4850ARZ features a slew rate-limited driver, which minimizes electromagnetic interference (EMI) and reduces reflections that can occur on improperly terminated lines.
Key features of the ADM4850ARZ include a wide supply voltage range, typically from 3.0V to 5.5V, and a low power consumption design, making it suitable for battery-powered applications. The device supports data rates up to 250 kbps and can handle up to 32 transceivers on the same bus. It also offers fail-safe receiver inputs, short-circuit protection, and thermal shutdown for enhanced reliability.
The ADM4850ARZ is typically packaged in a small 8-lead SOIC (Small Outline Integrated Circuit) form factor, making it easy to integrate into various circuit designs. It is widely used in industrial automation, building management systems, and process controls.

Equivalent

The ADM4850ARZ is a robust RS-485 transceiver. Equivalent products include:
1. MAX485 from Maxim Integrated
2. SN75176B from Texas Instruments
3. SP485E from Exar Corporation
4. ST485 from STMicroelectronics
5. LTC485 from Analog Devices
These alternatives offer similar functionalities, such as full-duplex communication, high-speed data transmission, and robust performance for RS-485 applications. Always verify electrical and mechanical compatibility with your design requirements before choosing an equivalent.

Features

The ADM4850ARZ is a robust RS-485 transceiver designed for high-speed communication in industrial and commercial applications. Key features include:
1. Data Rate: Supports up to 50 Mbps, making it suitable for fast data transmission.
2. Power Supply: Operates on a single 3.3V or 5V supply, offering flexibility in power management.
3. Protection: Includes enhanced ESD protection up to ±15 kV, ensuring reliability in harsh environments.
4. Fail-Safe: Offers a fail-safe receiver that prevents bus faults by defaulting to known states.
5. Low Power: Features low power consumption with a shutdown mode that reduces current draw to 1 nA.
6. Operating Temperature: Functions effectively between -40°C to +85°C, making it suitable for various environmental conditions.
7. Full-Duplex Communication: Supports simultaneous transmission and reception, optimizing data exchange.
8. Reduced Size: Available in a compact package, saving space on PCBs.
These features make the ADM4850ARZ ideal for applications requiring reliable, high-speed data communication in challenging conditions.

Pinout

The ADM4850ARZ is a transceiver from Analog Devices designed for RS-485 and RS-422 communication standards. It comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. The pin functions are as follows:
1. RO (Receive Output): Data received by the transceiver is output to this pin.
2. RE (Receive Enable): Active low. When low, the receiver is enabled.
3. DE (Driver Enable): Active high. When high, the driver outputs are enabled.
4. DI (Driver Input): This pin accepts TTL/CMOS input data to be transmitted over the bus.
5. GND (Ground): Common ground reference for the device.
6. A (Non-Inverting Driver Output/Receiver Input): Differential data line.
7. B (Inverting Driver Output/Receiver Input): Differential data line.
8. VCC (Positive Supply Voltage): Power supply for the device, typically +5V.
The ADM4850ARZ is used in applications requiring robust communication over long distances and in noisy environments, thanks to its high noise immunity and differential signaling capabilities.

Manufacturer

The ADM4850ARZ is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company that specializes in designing and manufacturing analog, mixed-signal, and digital signal processing (DSP) integrated circuits. The company provides solutions for various industries, including automotive, communications, consumer electronics, industrial, healthcare, and instrumentation. Analog Devices is known for its innovation in the field of semiconductors and its focus on enabling new capabilities in signal processing technologies.

Application

The ADM4850ARZ is a low-power RS-485 transceiver used in various communication applications. It is commonly employed in industrial automation, process control networks, and building automation systems for reliable data transmission over long distances in noisy environments. The device is used in utility metering systems, enabling efficient communication between metering devices and data collection units. Additionally, it's suitable for motor control applications and HVAC systems where robust and long-distance communication is critical. The ADM4850ARZ's ability to operate in half-duplex mode makes it ideal for applications where bidirectional data exchange is required on a single pair of wires.

Package

The ADM4850ARZ is typically available in an 8-lead SOIC (Small Outline Integrated Circuit) package.

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