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ADM2486:  iCoupler® High Speed Isolated RS-485 Tranceiver

The ADM24861 differential bus transceiver is an integrated, galvanically isolated component designed for bidirectional data communication on multipoint bus transmission lines. It is designed for balanced transmission lines and complies with ANSI TIA/EIA RS-485-A and ISO 8482:1987(E).

The device employs Analog Devices’ iCoupler technology to combine a 3-channel isolator, a 3-state ...More

ADM2486:  iCoupler® High Speed Isolated RS-485 Tranceiver

Product Description

The ADM24861 differential bus transceiver is an integrated, galvanically isolated component designed for bidirectional data communication on multipoint bus transmission lines. It is designed for balanced transmission lines and complies with ANSI TIA/EIA RS-485-A and ISO 8482:1987(E).

The device employs Analog Devices’ iCoupler technology to combine a 3-channel isolator, a 3-state differential line driver, and a differential input receiver into a single package. The logic side of the device can be powered with either a 5 V or a 3 V supply while the bus side is powered with a 5 V supply.

The ADM2486 driver has an active high enable. The driver differential outputs and the receiver differential inputs are connected internally to form a differential input/output port that imposes minimal loading on the bus when the driver is disabled or when VDD1 or VDD2 =0. Also provided is an active high receiver disable that causes the receive output to enter a high impedance state.

The device has current-limiting and thermal shutdown features to protect against output short circuits and situations where bus contention might cause excessive power dissapation.

RESOURCES & TOOLS

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  • High-Speed Isolated RS-485 Transceiver
  • Electrical Data Isolation 2500 VRMS for 1 min (UL 1577 Certification)
  • PROFIBUS Compliant
  • Complies with ANSI TIA/EIA RS-485-A-1998 and ISO 8482:1987(E)
  • High Data Rate: 20 Mbaud (NRZ)
  • Low Power Operation:
    DC–5 MBd: 5.7 mA max
    12 MBd: 8.5 mA max
    20 MBd: 10 mA max
  • Suitable for 5 V or 3 V Operation (VDD1)
  • High Common Mode Transient Immunity: >25 KV/µs
  • ESD-Protection: ---
  • Pwr Supply (Vnom): +3 to +5 & ISO +5
  • Data Rate: 20Mbps
  • Full-Half Duplex: Half
  • # of Nodes On Bus: 50
  • Drvr/Rcvr Enable: Yes
  • Fail Safe: Open
  • Isolation V (rms): 2.5 kV
  • Available Packages: SOIC

Functional Block Diagram for ADM2486

类似产品

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Part# Min Pos Supply Pwr Supply (Vnom) Full-Half Duplex ESD-Protection Data Rate # of Nodes On Bus Drvr/Rcvr Enable Fail Safe Isolation V (rms) Available Packages Price* (1000-4999) Protocols
ADM2482E +3 +3 to +5 & ISO +3 Full, Half 15 kV 16Mbps 256 Yes Open, Short 2.5 kV SOIC $4.66 RS-422, RS-485
ADM2484E +3 +3 to +5 & ISO +3 Full, Half 15 kV 500kbps 256 Yes Open, Short 5 kV SOIC $3.04 RS-422, RS-485
ADM2487E +3 +3 to +5 & ISO +3 Full, Half 15 kV 500kbps 256 Yes Open, Short 2.5 kV SOIC $3.64 RS-422, RS-485
ADM2491E +3 +3 to +5 & ISO +5 Full, Half 8 kV 16Mbps 32 Yes Open 5 kV SOIC $4.76 RS-422, RS-485
ADM2582E +3 3.3, 5 Full, Half 15 kV 16Mbps 256 Yes Open, Short 2.5 kV SOIC $6.50 RS-422, RS-485
ADM2587E +3 3.3, 5 Full, Half 15 kV 500kbps 256 Yes Open, Short 2.5 kV SOIC $5.50 RS-422, RS-485
ADN4668 +3 3.3 --- 15 kV 400Mbps - Yes - - SOIC, SOP $1.16 EIA-644, LVDS
ADM2490E +2.7 +3 to +5 & ISO +5 Full 8 kV 16Mbps 32 No Open 5 kV SOIC $4.55 RS-422, RS-485
ADM2483 +2.7 +3 to +5 & ISO +5 Half --- 500kbps 256 Yes Open, Short 2.5 kV SOIC $3.04 RS-485
ADM2485 +2.7 +3 to +5 & ISO +5 Half --- 16Mbps 50 Yes Open 2.5 kV SOIC $5.57 RS-422, RS-485
ADM2486 +2.7 +3 to +5 & ISO +5 Half --- 20Mbps 50 Yes Open 2.5 kV SOIC $5.04 RS-485
ADM3070E +3 3.3 Full 15 kV 250kbps 256 Yes Open, Short --- SOIC $1.62 RS-422, RS-485
ADM3071E +3 3.3 Full 15 kV 250kbps 256 No Open, Short --- SOIC $1.57 RS-422, RS-485
ADM3488E +3 3.3 Full 15 kV 250kbps 32 No Open --- SOIC $1.32 RS-422, RS-485
ADM3488 +3 3.3 Full --- 250kbps 32 No Open --- SOIC $0.91 RS-422, RS-485
ADM3074E +3 3.3 Full 15 kV 500kbps 256 No Open, Short --- SOIC $1.52 RS-422, RS-485
ADM3490 +3 3.3 Full --- 10Mbps 32 No Open --- SOIC $1.01 RS-422, RS-485
ADM3491 +3 3.3 Full --- 10Mbps 32 Yes Open --- DIP, SOIC, SOP $1.37 RS-422, RS-485
ADM3490E +3 3.3 Full 15 kV 12Mbps 32 No Open --- SOIC $1.37 RS-422, RS-485
ADM3491E +3 3.3 Full 15 kV 12Mbps 32 Yes Open --- SOIC $1.42 RS-422, RS-485
ADM3076E +3 3.3 Full 15 kV 16Mbps 256 Yes Open, Short --- SOIC $1.62 RS-422, RS-485
ADM3077E +3 3.3 Full 15 kV 16Mbps 256 No Open, Short --- SOIC $1.57 RS-422, RS-485
ADM3072E +3 3.3 Half 15 kV 250kbps 256 Yes Open, Short --- SOIC $1.52 RS-422, RS-485
ADM3483E +3 3.3 Half 15 kV 250kbps 32 Yes Open --- SOIC $1.32 RS-422, RS-485
ADM3493 +3 3.3 Half --- 250kbps 256 Yes Open --- SOIC $0.96 RS-422, RS-485
ADM3483 +3 3.3 Half --- 250kbps 32 Yes Open --- SOIC $0.91 RS-422, RS-485
ADM3073E +3 3.3 Half 15 kV 500kbps 256 Yes Open, Short --- SOIC $1.62 RS-422, RS-485
ADM3075E +3 3.3 Half 15 kV 500kbps 256 Yes Open, Short --- SOIC $1.52 RS-422, RS-485
ADM3486E +3 3.3 Half 15 kV 2.5Mbps 32 Yes Open --- SOIC $1.32 RS-422, RS-485
ADM3485 +3 3.3 Half --- 10Mbps 32 Yes Open --- SOIC $1.01 RS-422, RS-485
ADM3485E +3 3.3 Half 15 kV 12Mbps 50 Yes Open --- DIP, SOIC $1.32 RS-422, RS-485
ADM3078E +3 3.3 Half 15 kV 16Mbps 256 Yes Open, Short --- SOIC $1.55 RS-422, RS-485
ADM488 +4.5 5 Full --- 250kbps 32 No Open --- DIP, SOIC $1.11 RS-422, RS-485
ADM489 +4.5 5 Full --- 250kbps 32 Yes Open --- DIP, SOIC, SOP $1.62 RS-422, RS-485
ADM483E +4.5 5 Half 15 kV 250kbps 32 Yes Open --- DIP, SOIC $1.27 RS-422, RS-485
ADM4854 +4.75 5 Full --- 115kbps 256 No Open, Short --- SOIC $0.71 RS-422, RS-485
ADM4855 +4.75 5 Full --- 500kbps 256 No Open, Short --- SOIC $0.71 RS-422, RS-485
ADM4856 +4.75 5 Full --- 2.5Mbps 256 No Open, Short --- SOIC $0.71 RS-422, RS-485
ADM4857 +4.75 5 Full --- 10Mbps 256 No Open, Short --- SOIC $0.71 RS-422, RS-485
ADM4850 +4.75 5 Half --- 115kbps 256 Yes Open, Short --- CSP, MSOP, SOIC $0.71 RS-422, RS-485
ADM487E +4.75 5 Half 15 kV 250kbps 128 Yes Open --- SOIC $1.32 RS-422, RS-485
ADM483 +4.75 5 Half --- 250kbps 32 Yes Open --- SOIC $0.67 RS-422, RS-485
ADM4851 +4.75 5 Half --- 500kbps 256 Yes Open, Short --- CSP, SOIC $0.71 RS-422, RS-485
ADM1487E +4.75 5 Half 15 kV 2.5Mbps 128 Yes Open --- SOIC $1.32 RS-422, RS-485
ADM485E +4.75 5 Half 15 kV 2.5Mbps 32 Yes Open --- SOIC $1.32 RS-422, RS-485
ADM4852 +4.75 5 Half --- 2.5Mbps 256 Yes Open, Short --- CSP, SOIC $0.71 RS-422, RS-485
ADM485 +4.75 5 Half --- 5Mbps 32 Yes Open --- DIP, SOIC, SOP $1.31 RS-422, RS-485
ADM4853 +4.75 5 Half --- 10Mbps 256 Yes Open, Short --- CSP, SOIC $0.71 RS-422, RS-485
ADM1486 +4.75 5 Half --- 30Mbps 50 Yes Open --- SOIC $2.07 RS-422, RS-485
ADM1485 +4.75 5 Half --- 30Mbps 32 Yes Open --- DIP, SOIC, SOP $1.63 RS-422, RS-485
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Table Default Sort is Power Supply (Ascending) then Full/Half Duplex Ascending


* The pricing listed here is provided only for budgetary purposes as recommended list price in U.S. Dollars in the United States ex factor per unit for the stated volume. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
** Pricing is currently unavailable. Click on the product number to see the Product Page for additional information.

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