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ADM2484E

Analog Devices
Part Number ADM2484E
Manufacturer Analog Devices
Description Isolated RS-485 Transceiver
Published Mar 8, 2017
Detailed Description Data Sheet 500 kbps, ESD Protected, Half-/Full-Duplex, iCoupler, Isolated RS-485 Transceiver ADM2484E FEATURES Isolate...
Datasheet PDF File ADM2484E PDF File

ADM2484E
ADM2484E

Overview
Data Sheet 500 kbps, ESD Protected, Half-/Full-Duplex, iCoupler, Isolated RS-485 Transceiver ADM2484E FEATURES Isolated, RS-485/RS-422 transceiver, configurable as half- or full-duplex ±15 kV ESD protection on RS-485 input/output pins 500 kbps data rate Complies with ANSI TIA/EIA RS-485-A-1998 and ISO 8482: 1987(E) Suitable for 5 V or 3.
3 V operation (VDD1) High common-mode transient immunity: >25 kV/μs True fail-safe receiver inputs 256 nodes on the bus Thermal shutdown protection Safety and regulatory approvals UL recognition 5000 V rms isolation voltage for 1 minute per UL1577 VDE certificate of conformity DIN V VDE V 0884-10 (VDE V 0884-10): 2006-12 Reinforced insulation, VIORM = 849 VPEAK CSA Component Acceptance Notice 5A IEC 60950-1: 390 V rms (reinforced) Operating temperature range: −40°C to +85°C Wide body, 16-lead SOIC package APPLICATIONS Isolated RS-485/RS-422 interfaces Industrial field networks INTERBUS Multipoint data transmission systems GENERAL DESCRIPTION The ADM2484E is an isolated data transceiver with ±15 kV ESD protection suitable for high speed, half- or full-duplex communication on multipoint transmission lines.
For halfduplex operation, the transmitter outputs and receiver inputs share the same transmission line.
Transmitter Output Pin Y links externally to Receiver Input Pin A, and Transmitter Output Pin Z links externally to Receiver Input Pin B.
Designed for balanced transmission lines, the ADM2484E complies with ANSI TIA/EIA RS-485-A-1998 and ISO 8482: 1987(E).
The device employs Analog Devices, Inc.
, iCoupler® technology to combine a 3-channel isolator, a three-state differential line driver, and a differential input receiver into a single package.
GALVANIC ISOLATION 06984-001 FUNCTIONAL BLOCK DIAGRAM VDD1 VDD2 ADM2484E DE TxD RxD RE GND1 Figure 1.
GND2 Y Z A B The differential transmitter outputs and receiver inputs feature electrostatic discharge circuitry that provides protection up to ±15 kV using the human body model...


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