
ANALOG DEVICES ADM2483BRWZ-REEL Isolated RS-485 Transceiver
ANALOG DEVICES ADM2483BRWZ-REEL Product Overview
The ADM2483BRWZ-REEL is an integrated, galvanically isolated RS-485 transceiver from Analog Devices, designed for bidirectional data communication on balanced, multipoint bus transmission lines . It complies with ANSI EIA/TIA-485-A and ISO 8482:1987(E) standards. The device integrates a 3-channel isolator, a three-state differential line driver, and a differential input receiver into a single package using ADI's proprietary iCoupler technology .
Rated for operation with either a 5V or 3V supply on the logic side and a 5V supply on the bus side, the ADM2483 supports data rates up to 500kbps with slew-rate-limited driver outputs to reduce reflections on improperly terminated lines . The receiver inputs feature a true fail-safe function, ensuring a logic-high output when inputs are open or shorted . The device provides 2500Vrms isolation for safety and system reliability . Operating temperature range is -40°C to +85°C .
ANALOG DEVICES ADM2483BRWZ-REEL Key Specifications
|
Parameter |
Value |
|
Manufacturer |
Analog Devices |
|
Product Type |
Isolated RS-485 Transceiver |
|
Data Rate |
500kbps |
|
Duplex Mode |
Half-Duplex |
|
Isolation Voltage |
2500Vrms |
|
Technology |
iCoupler (Magnetic Coupling) |
|
Number of Channels |
3 (2/1 Inputs - Side 1/Side 2) |
|
Common Mode Transient Immunity |
25kV/µs (min) |
|
Number of Nodes on Bus |
256 |
|
Supply Voltage (Logic Side) |
3V or 5V |
|
Supply Voltage (Bus Side) |
5V |
|
Supply Current |
2.5mA (max) |
|
ESD Protection |
±2 kV (HBM) |
|
Fail-Safe Feature |
Yes (Open, Short) |
|
Package |
16-pin SOIC-W (0.295", 7.50mm width) |
|
Mounting |
Surface Mount |
|
Operating Temp (TA) |
-40°C to +85°C |
|
Packaging |
Tape & Reel (1000 units/reel) |
|
RoHS |
Compliant |
|
Part Status |
Active |
ANALOG DEVICES ADM2483BRWZ-REEL Key Advantages
The ADM2483BRWZ-REEL employs iCoupler® technology to combine galvanic isolation with a high-performance RS-485 transceiver, eliminating the need for separate optocouplers and reducing board space . The 2500Vrms isolation and 25kV/µs common-mode transient immunity provide robust protection against electrical noise, voltage spikes, and ground loops in demanding industrial environments .
The slew-rate-limited driver outputs minimize reflections and EMI, ensuring signal integrity on long bus cables . The true fail-safe receiver inputs guarantee a known output state under open or short-circuit conditions, simplifying system initialization and fault handling . The device supports up to 256 nodes on a single bus, making it suitable for large multidrop networks . Built-in thermal shutdown and current limiting protection safeguard against output short circuits and bus contention . The device also features chatter-free power-up/power-down protection to prevent erroneous data transmission during power cycling .
ANALOG DEVICES ADM2483BRWZ-REEL Typical Applications
Industrial automation and control networks
Building automation and HVAC control systems
Motor control and drive interfaces
Isolated RS-485/RS-422 interfaces
Multipoint data transmission systems
Security and access control networks
Energy management and renewable energy systems
Medical equipment requiring isolated communication
Why Choose the ANALOG DEVICES ADM2483BRWZ-REEL?
The ADM2483BRWZ-REEL combines 500kbps data rate, 2500Vrms galvanic isolation, and 256-node bus capability in a 16-pin SOIC package from Analog Devices, a global leader in signal processing and isolation technology. It delivers stable, reliable, and robust RS-485 communication for applications where electrical noise, voltage transients, and ground potential differences are critical concerns. The iCoupler integration simplifies design and reduces component count, making it a versatile and trusted solution for industrial communication networks .
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