GENERAL DESCRIPTION
●The ADM2481 differential bus transceiver is an integrated, galvanically isolated component designed for bidirectional data communication on balanced, multipoint bus transmission lines. It complies with ANSI EIA/TIA-485-A and ISO 8482: 1987(E). Using iCoupler® technology from Analog Devices, Inc., the ADM2481 combines a 3-channel isolator, a three-state differential line driver, and a differential input receiver into a single package. The logic side of the device is powered with either a 5 V or 3 V supply, and the bus side uses a 5 V supply only.
●FEATURES
●RS-485 transceiver with electrical data isolation
●Complies with ANSI TIA/EIA-485-A and ISO 8482: 1987(E)
●500 kbps data rate
●Slew rate-limited driver outputs
●Low power operation: 2.5 mA maximum
●Suitable for 5 V or 3.3 V operations (VDD1)
●High common-mode transient immunity: >25 kV/μs
●True fail-safe receiver inputs
●Chatter-free power-up/power-down protection
●256 nodes on bus
●Thermal shutdown protection
●Safety and regulatory approvals (pending)
● UL recognition: 2500 V rms for 1 minute per
● UL 1577 (pending)
●VDE certificates of conformity (pending)
● DIN V VDE V 0884-10 (VDE V 0884-10): 2006-12
● VIORM= 560 V peak
●Operating temperature range: −40°C to +85°C
