ADM2687EBRIZ

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1. Describe

ADM2687EBRIZ is a fully integrated 5 kV rms Signal and power isolated data transceiver with ±15 kV ESD Protection, suitable for high-speed communication Multipoint transmission line. ADM2682E/ADM2687E Includes an integrated 5 kV rms isolated DC-DC power supply This eliminates the need for an external DC-DC isolation block. They are specially designed for balanced transmission lines, conforming to Comply with ANSI/TIA/EIA-485-A 98 and ISO 8482:1987(E). These devices integrate iCoupler® technology from Analog Devices, Inc. to Combine a 3-channel isolator, a three-state differential line driver, a Differential input receiver and Analog Devices isoPower® DC-DC The converter is integrated into one package. These devices consist of a Single 5 V or 3.3 V power supply for fully integrated signal and Power isolation RS-485 solution. The ADM2682E/ADM2687E drivers have active high enable. An active-low receiver enable is also provided, which causes The receiver output enters a high impedance state when disabled. The device has current limiting and thermal shutdown functions Function to prevent output short circuit and situation Bus contention can cause excessive power consumption. Parts are fully specified within the industrial temperature range It adopts a highly integrated 16-lead wide-body SOIC package, with a creepage distance and clearance greater than 8 mm. ADM2682E/ADM2687E includes isoPower technology Use high-frequency switching elements to pass transformer. Special care must be taken when printing circuit boards Board (PCB) layout to meet emission standards. refer to AN-0971 Application Note, Control Recommendations Radiated emissions from isoPower equipment, detailed information about the ship Layout considerations.

2. Feature

    1. 5 kV rms isolated RS-485/RS-422 transceiver, configurable as half-duplex or full-duplex

    2. isoPower integrated isolated DC-DC converter

    3. ±15 kV ESD protection on RS-485 input/output pins

    4. Comply with ANSI/TIA/EIA-485-A-98 and ISO 8482:1987(E) Data rate: 16 Mbps (ADM2682E), 500 kbps (ADM2687E) 5 V or 3.3 V operation

    5. Connect up to 256 nodes on a bus

    6. Open circuit and short circuit, fail-safe receiver input

    7. High common mode transient immunity: >25 kV/µs

    8. Thermal shutdown protection

    9. Operating temperature range: −40°C to +85°C

  10. 16 lead wide body SOIC, creepage distance and clearance are greater than 8 mm

3. Application

    1. Isolated RS-485/RS-422 interface

    2. Industrial Field Network

    3. Multipoint data transmission system

4. Pin configuration

5. Function Description