Overview
The ADM489ARU is a high-speed, low-power RS-422/RS-485 transceiver designed and manufactured by Analog Devices, Inc. This component is tailored for industrial and commercial applications, offering robust performance and reliability in harsh environments. It operates on a single 5V power supply and supports data rates up to 250 kbps, making it suitable for full-duplex data transmission.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage | 4.5V to 5.5V |
| Duplex | Full |
| Number of Drivers/Receivers | 1/1 |
| Protocol | RS-422, RS-485 |
| Receiver Hysteresis | 70 mV |
| Data Rate | Up to 250 kbps |
| Operating Temperature Range | -40°C to +85°C |
| Input Impedance | 12 kΩ |
| Bus Common-Mode Range | -7 V to +12 V |
| Supply Current | 30 μA |
Key Features
- High-speed data transmission up to 250 kbps
- Low power consumption for energy-efficient operation
- Wide operating temperature range of -40°C to +85°C for use in harsh environments
- Robust industrial design for reliable performance
- Compatibility with RS-422 and RS-485 standards for versatile communication
- Thermal shutdown circuit to prevent excessive power dissipation
- Fail-safe feature in the receiver for unconnected inputs
- Slew rate limited drivers to minimize electromagnetic interference
- Support for up to 32 transceivers on the differential bus
Applications
- Industrial automation and control systems
- Building automation and security systems
- Transportation and infrastructure applications
- Medical equipment
- Data communication systems
- DTE-DCE interface
- Packet switching
- Local area networks
- Data concentration
- Data multiplexers
- Integrated services digital network (ISDN)
Q & A
- What is the operating voltage range of the ADM489ARU?
The ADM489ARU operates on a single 5V power supply with a voltage range of 4.5V to 5.5V. - What are the supported data rates for the ADM489ARU?
The ADM489ARU supports data rates up to 250 kbps. - What protocols does the ADM489ARU comply with?
The ADM489ARU complies with both RS-422 and RS-485 serial communication standards. - What is the operating temperature range of the ADM489ARU?
The ADM489ARU operates over a wide temperature range of -40°C to +85°C. - How many transceivers can be connected on the bus?
Up to 32 transceivers can be connected on the differential bus due to the 12 kΩ input impedance. - What safety features does the ADM489ARU include?
The ADM489ARU includes a thermal shutdown circuit to prevent excessive power dissipation and a fail-safe feature in the receiver for unconnected inputs. - Is the ADM489ARU immune to electromagnetic interference?
Yes, the ADM489ARU is designed with slew rate limited drivers to minimize electromagnetic interference. - What are the typical applications of the ADM489ARU?
The ADM489ARU is used in industrial automation, building automation, transportation, medical equipment, and various data communication systems. - Is the ADM489ARU ROHS compliant?
Yes, the ADM489ARU is ROHS3 compliant. - What packages are available for the ADM489ARU?
The ADM489ARU is available in PDIP, SOIC, and TSSOP packages.
