Model No: ADM2483BRWZ-REEL
Analog Devices Inc. ADM2483BRWZ-REEL
Manufacturer: Analog Devices Inc.
SEMICON NO.: ADM2483BRWZ-REEL
Package: 16-SOIC
Stock: In stock
Description: RS485 transceiver 2500Vrms 3 channel 500kbps 25kV/µs
SEMICON NO.: ADM2483BRWZ-REEL
Package: 16-SOIC
Stock: In stock
Description: RS485 transceiver 2500Vrms 3 channel 500kbps 25kV/µs
Quantity :
| Mfr | Analog Devices Inc. |
| Device Type | Half-Duplex, Differential Bus Transceiver |
| Technology | Magnetic Coupling (iCoupler® technology) |
| Isolation Voltage | 2500 Vrms (galvanic isolation) |
| Common-Mode Transient Immunity | 25 kV/µs (minimum) |
| Protocol Support | RS-485, RS-422 |
| Number of Nodes on Bus | Up to 256 transceivers |
| Data Rate | 500 kbps |
| Propagation Delay Time | 620 ns (maximum) |
| Rise / Fall Time | 600 ns (typical, maximum) |
| Number of Channels | 3 channels |
| Channel Type | Bidirectional |
| Inputs - Side 1/Side 2 | 2/1 |
| Driver / Receiver Count | 1 driver, 1 receiver |
| Supply Voltage (VDD1 - Logic Side) | 3V or 5V (range: 2.7V to 5.5V DC) |
| Supply Voltage (VDD2 - Bus Side) | 5V (range: 4.75V to 5.25V) |
| Supply Current (Max) | 2.5 mA (nominal) |
| Operating Temperature | -40°C to +85°C |
| Package | 16-SOIC |
| Mounting Type | Surface Mount (SMD/SMT) |
| Compliance | RoHS Compliant |
ADM2483BRWZ-REEL Half-Duplex iCoupler Isolated RS-485 Transceiver
The ADM2483BRWZ-REEL is a highly integrated, galvanically isolated half-duplex RS-485 transceiver from Analog Devices, engineered for robust bidirectional data communication on balanced multipoint bus transmission lines in harsh industrial environments. This device combines a 3-channel iCoupler digital isolator, a three-state differential line driver, and a differential input receiver into a single compact package, eliminating the need for external optocouplers and discrete isolation components. The logic side operates flexibly from either 3V or 5V supplies (VDD1: 2.7V–5.5V), while the bus side requires a dedicated 5V supply (VDD2), enabling seamless voltage level translation between different system domains. Compliant with ANSI EIA/TIA-485-A and ISO 8482:1987(E) standards, the device supports data rates up to 500 kbps with slew-rate-limited driver outputs that minimize electromagnetic interference and reflections on improperly terminated transmission lines.
Bus Interface & Network Capability
The transceiver features a 1/8 unit load receiver input impedance of 96 kΩ, allowing up to 256 devices to coexist on a single RS-485 bus segment—eight times the capacity of standard 32-node transceivers—making it ideal for large-scale distributed control systems. The driver and receiver share differential I/O pins (A and B) internally connected to form a half-duplex port, with active-high enable controls (DE for driver, RE for receiver) that place outputs in high-impedance state when disabled, imposing minimal loading on the bus. Chatter-free power-up and power-down protection circuitry prevents spurious data transmission during supply voltage transients, while current limiting and thermal shutdown features protect against output short circuits and bus contention scenarios that could cause excessive power dissipation.
AlternativeIndustrial communication ICModels
● ADM2482EBRWZ-REEL: Higher-speed variant supporting 16 Mbps data rate with identical isolation specifications and pinout for bandwidth-intensive industrial communication applications.
● ADM2487EBRWZ: Full-duplex version enabling simultaneous bidirectional communication with separate driver and receiver differential pairs for complex network topologies.
● ADM2582EBRWZ-REEL: Integrated signal and power isolated transceiver with onboard isolated DC-DC converter, eliminating external isolated power supply requirements.
● MAX1490B: Maxim Integrated alternative offering 2.5kV isolation and 500kbps operation with comparable half-duplex functionality for multi-vendor design flexibility.
● ISO3082DW: Texas Instruments isolated RS-485 transceiver providing similar 2.5kV isolation and half-duplex operation with 3.3V/5V logic compatibility.
The ADM2483BRWZ-REEL is a highly integrated, galvanically isolated half-duplex RS-485 transceiver from Analog Devices, engineered for robust bidirectional data communication on balanced multipoint bus transmission lines in harsh industrial environments. This device combines a 3-channel iCoupler digital isolator, a three-state differential line driver, and a differential input receiver into a single compact package, eliminating the need for external optocouplers and discrete isolation components. The logic side operates flexibly from either 3V or 5V supplies (VDD1: 2.7V–5.5V), while the bus side requires a dedicated 5V supply (VDD2), enabling seamless voltage level translation between different system domains. Compliant with ANSI EIA/TIA-485-A and ISO 8482:1987(E) standards, the device supports data rates up to 500 kbps with slew-rate-limited driver outputs that minimize electromagnetic interference and reflections on improperly terminated transmission lines.
Bus Interface & Network Capability
The transceiver features a 1/8 unit load receiver input impedance of 96 kΩ, allowing up to 256 devices to coexist on a single RS-485 bus segment—eight times the capacity of standard 32-node transceivers—making it ideal for large-scale distributed control systems. The driver and receiver share differential I/O pins (A and B) internally connected to form a half-duplex port, with active-high enable controls (DE for driver, RE for receiver) that place outputs in high-impedance state when disabled, imposing minimal loading on the bus. Chatter-free power-up and power-down protection circuitry prevents spurious data transmission during supply voltage transients, while current limiting and thermal shutdown features protect against output short circuits and bus contention scenarios that could cause excessive power dissipation.
AlternativeIndustrial communication ICModels
● ADM2482EBRWZ-REEL: Higher-speed variant supporting 16 Mbps data rate with identical isolation specifications and pinout for bandwidth-intensive industrial communication applications.
● ADM2487EBRWZ: Full-duplex version enabling simultaneous bidirectional communication with separate driver and receiver differential pairs for complex network topologies.
● ADM2582EBRWZ-REEL: Integrated signal and power isolated transceiver with onboard isolated DC-DC converter, eliminating external isolated power supply requirements.
● MAX1490B: Maxim Integrated alternative offering 2.5kV isolation and 500kbps operation with comparable half-duplex functionality for multi-vendor design flexibility.
● ISO3082DW: Texas Instruments isolated RS-485 transceiver providing similar 2.5kV isolation and half-duplex operation with 3.3V/5V logic compatibility.
