規格
| 屬性 | 價值 |
| Package | Tube |
| ProductStatus | Active |
| Type | Transceiver |
| Protocol | RS422, RS485 |
| NumberofDrivers/Receivers | 1/1 |
| Duplex | Full |
| ReceiverHysteresis | 30 mV |
| DataRate | 16Mbps |
| Voltage-Supply | 4.75V ~ 5.25V |
| OperatingTemperature | -40°C ~ 85°C |
| MountingType | Surface Mount |
| Package/Case | 10-TFSOP, 10-MSOP (0.118, 3.00mm Width) |
概述
Description
The ADM1491EBRMZ is a high-performance differential line transceiver designed for robust communication over twisted-pair cabling systems. It is part of Analog Devices' ADM1491E series, known for its enhanced electrostatic discharge (ESD) protection and low power consumption. The transceiver is compliant with the RS-485 and RS-422 standards, making it suitable for industrial, commercial, and telecommunications applications that require reliable data transmission over long distances.
Key features of the ADM1491EBRMZ include a wide operating voltage range, high-speed data rates up to 16 Mbps, and fail-safe receiver inputs ensuring safety in open-circuit, short-circuit, or idle-bus conditions. The device also features thermal shutdown protection and a low skew output to minimize signal distortion.
The ADM1491EBRMZ is designed to operate in harsh environments, with ESD protection up to ±15 kV on the bus pins. It is typically housed in a small, surface-mount package, making it easy to integrate into compact circuit designs. This transceiver is often used in systems requiring reliable, high-speed data communication, such as factory automation, HVAC systems, and remote sensing applications.
Key features of the ADM1491EBRMZ include a wide operating voltage range, high-speed data rates up to 16 Mbps, and fail-safe receiver inputs ensuring safety in open-circuit, short-circuit, or idle-bus conditions. The device also features thermal shutdown protection and a low skew output to minimize signal distortion.
The ADM1491EBRMZ is designed to operate in harsh environments, with ESD protection up to ±15 kV on the bus pins. It is typically housed in a small, surface-mount package, making it easy to integrate into compact circuit designs. This transceiver is often used in systems requiring reliable, high-speed data communication, such as factory automation, HVAC systems, and remote sensing applications.
Equivalent
The ADM1491EBRMZ is a RS-485/RS-422 transceiver from Analog Devices. Equivalent products include the MAX485 from Maxim Integrated, SN75176 from Texas Instruments, and LTC1480 from Linear Technology (now part of Analog Devices). These chips offer similar functionalities like differential signaling for communication, half-duplex operation, and compatibility with RS-485 and RS-422 communication standards. Always check specific datasheets to ensure compatibility with your application requirements.
Features
The ADM1491EBRMZ is a robust, full-duplex RS-485/RS-422 transceiver designed for high-speed communication. Key features include:
1. Data Rate: Supports data rates up to 16 Mbps, suitable for high-speed data transmission.
2. Operating Voltage: Operates over a wide voltage range from 3.0 V to 5.5 V.
3. ESD Protection: Offers enhanced electrostatic discharge (ESD) protection up to ±15 kV on the RS-485 input/output pins, ensuring device reliability in harsh environments.
4. Failsafe Receiver Inputs: Incorporates open-circuit, short-circuit, and idle bus failsafe receiver inputs, preventing false transitions.
5. Low Power Consumption: Features a low quiescent current for energy-efficient operation.
6. Extended Temperature Range: Functions effectively over an extended industrial temperature range from -40°C to +125°C.
7. Short-Circuit Protection: Includes short-circuit protection on the outputs, preventing damage from faults.
8. Driver and Receiver Enable: Has separate enabling pins for the driver and receiver, providing flexible control.
9. Package: Available in an industry-standard SOIC package, facilitating easy integration into various applications.
These features make the ADM1491EBRMZ suitable for industrial automation, building automation, and other robust communication applications.
1. Data Rate: Supports data rates up to 16 Mbps, suitable for high-speed data transmission.
2. Operating Voltage: Operates over a wide voltage range from 3.0 V to 5.5 V.
3. ESD Protection: Offers enhanced electrostatic discharge (ESD) protection up to ±15 kV on the RS-485 input/output pins, ensuring device reliability in harsh environments.
4. Failsafe Receiver Inputs: Incorporates open-circuit, short-circuit, and idle bus failsafe receiver inputs, preventing false transitions.
5. Low Power Consumption: Features a low quiescent current for energy-efficient operation.
6. Extended Temperature Range: Functions effectively over an extended industrial temperature range from -40°C to +125°C.
7. Short-Circuit Protection: Includes short-circuit protection on the outputs, preventing damage from faults.
8. Driver and Receiver Enable: Has separate enabling pins for the driver and receiver, providing flexible control.
9. Package: Available in an industry-standard SOIC package, facilitating easy integration into various applications.
These features make the ADM1491EBRMZ suitable for industrial automation, building automation, and other robust communication applications.
Pinout
The ADM1491EBRMZ is a high-speed RS-485/RS-422 transceiver designed for communication in noisy environments. It features a 10-pin MSOP (Mini Small Outline Package) pin layout. The primary functions of the ADM1491EBRMZ include enabling the transmission and reception of differential signals, supporting half-duplex communication, and providing enhanced electrostatic discharge (ESD) protection. It is commonly used in industrial applications where robust data communication is critical.
Key pin functions typically include:
1. Driver Input (DI): Where the data to be transmitted is input.
2. Receiver Output (RO): Provides the received data output.
3. Transmitter Output/Receiver Input (A, B): Differential data input/output pins.
4. Driver Enable (DE): Activates the driver's data transmission capabilities.
5. Receiver Enable (RE): Controls the receiver's operational state.
6. Ground (GND): Power return path.
7. Supply Voltage (VCC): Power supply input.
Please refer to the manufacturer's datasheet for specific pin assignments and detailed descriptions.
Key pin functions typically include:
1. Driver Input (DI): Where the data to be transmitted is input.
2. Receiver Output (RO): Provides the received data output.
3. Transmitter Output/Receiver Input (A, B): Differential data input/output pins.
4. Driver Enable (DE): Activates the driver's data transmission capabilities.
5. Receiver Enable (RE): Controls the receiver's operational state.
6. Ground (GND): Power return path.
7. Supply Voltage (VCC): Power supply input.
Please refer to the manufacturer's datasheet for specific pin assignments and detailed descriptions.
Manufacturer
The ADM1491EBRMZ is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company that specializes in the design and manufacturing of analog, mixed-signal, and digital signal processing (DSP) integrated circuits. The company is known for producing high-performance devices used in a wide range of applications, including industrial, automotive, healthcare, consumer electronics, communications, and more. Analog Devices' products are critical in enabling technologies that bridge the physical and digital worlds, often providing solutions for data conversion, signal processing, power management, and more.
Application
The ADM1491EBRMZ is a high-speed RS-485/RS-422 transceiver designed for robust data communication applications. It is commonly used in industrial automation, process control networks, building automation systems, and HVAC controls due to its ability to support high data rates and long cable lengths. Additionally, it is suitable for applications requiring reliable data transfer in the presence of noise, such as motor control, security systems, and telecommunications infrastructure. Its features, such as enhanced ESD protection and thermal shutdown, make it ideal for demanding environments where reliability and durability are critical.
Package
The ADM1491EBRMZ is typically available in an 8-lead SOIC (Small Outline Integrated Circuit) package. This package type is commonly used for surface-mount technology applications, providing a compact form factor suitable for various electronic devices.