Overview
The ADM489ARUZ-REEL is a full-duplex, low power, slew rate limited RS-485 transceiver produced by Analog Devices Inc. This component is designed for balanced data transmission and complies with both EIA RS-485 and RS-422 standards. It operates from a single 5 V ± 10% power supply and is suitable for full-duplex data transfer, making it ideal for applications requiring reliable and efficient communication over multipoint bus transmission lines.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Part Number | ADM489ARUZ-REEL |
| Package | 16-TSSOP (Tape & Reel) |
| Protocol | RS422, RS485 |
| Number of Drivers/Receivers | 1/1 |
| Duplex | Full |
| Receiver Hysteresis | 70 mV |
| Data Rate | 250 kbps |
| Supply Voltage | 4.5 V ~ 5.5 V |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
| Bus Common-Mode Range | -7 V to +12 V |
| Input Impedance | 12 kΩ |
| Supply Current | 30 μA (typical) |
| Protection Features | 2 kV EFT protection, thermal shutdown, short-circuit protection |
Key Features
- Compliance with EIA RS-485 and RS-422 standards
- Full-duplex operation with a single differential line driver and receiver
- Single 5 V ± 10% power supply
- Low power consumption with a typical supply current of 30 μA
- Slew rate limited drivers for low electromagnetic interference
- High immunity to radiated and conducted interference (meets IEC1000-4-3 and IEC1000-4-4)
- Fail-safe feature in the receiver, resulting in a logic high output state if inputs are unconnected
- Thermal shutdown circuit to prevent excessive power dissipation
- Short-circuit protection and 2 kV EFT protection
Applications
- Low power RS-485 and RS-422 systems
- DTE-DCE interface
- Packet switching
- Local area networks
- Data concentration and data multiplexers
- Integrated services digital network (ISDN)
Q & A
- What are the primary standards that the ADM489ARUZ-REEL complies with?
The ADM489ARUZ-REEL complies with both EIA RS-485 and RS-422 standards.
- What is the operating voltage range of the ADM489ARUZ-REEL?
The operating voltage range is 4.5 V to 5.5 V.
- What is the maximum data rate supported by the ADM489ARUZ-REEL?
The maximum data rate supported is 250 kbps.
- What type of protection does the ADM489ARUZ-REEL offer against electrical interference?
The component offers protection against radiated and conducted interference, including 2 kV EFT protection and thermal shutdown.
- How many transceivers can be connected on the differential bus?
Up to 32 transceivers can be connected on the differential bus due to the 12 kΩ input impedance.
- What is the typical supply current of the ADM489ARUZ-REEL?
The typical supply current is 30 μA.
- Does the ADM489ARUZ-REEL have any fail-safe features?
- What is the operating temperature range of the ADM489ARUZ-REEL?
The operating temperature range is -40°C to 85°C.
- What type of packaging is available for the ADM489ARUZ-REEL?
The component is available in a 16-TSSOP package on a tape and reel.
- Is the ADM489ARUZ-REEL RoHS compliant?
