| |  |  | Description |  |  | When communicating at high data rates, or over long distances differential data transmission offers superior performance in most applications. Differential signals can help nullify the effects of ground shifts and induced noise signals that can appear as common mode voltages on a network. The RS-485 specification meets the requirements for a truly multi-point communications network, and the standard specifies up to 32 drivers and 32 receivers on a single (2-wire) bus. Some RS-485 Transceivers modify the input impedance to allow up to 8-times more nodes to be connected to the same bus. The most common RS-485 application is inter-programmable logic controller communication in industrial environments. Other common uses are point of sale terminals in stores and remote meters. Analog Devices offers a wide range of standard RS-485/RS-422 Transceivers and iCoupler® Isolated RS-485/RS-422 Transceivers to suit many applications. Learn all about the newest RS-485 parts in our RS-485 Applications Bulletin.
Helpful New Tool - ADI RS-485/RS-422 Cross Reference Guide |  |  |  |  |

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| | | | | | | | | | | ADM1485 | --- | 5 | 30Mbps | Half | 32 | Yes | Open | --- | DIP; SOIC; SOP | $1.61 | | ADM1486 | --- | 5 | 30Mbps | Half | 50 | Yes | Open | --- | SOIC | $2.05 | | ADM2483 | --- | +3 to +5 & ISO +5 | 500kbps | Half | 256 | Yes | Open, Short | 2.5 kV | SOIC | $3.00 | | ADM2485 | --- | +3 to +5 & ISO +5 | 16Mbps | Half | 50 | Yes | Open | 2.5 kV | SOIC | $5.50 | | ADM2486 | --- | +3 to +5 & ISO +5 | 20Mbps | Half | 50 | Yes | Open | 2.5 kV | SOIC | $4.98 | | ADM2490E | 8 kV | +3 to +5 & ISO +5 | 16Mbps | Full | 32 | No | Open | 5 kV | SOIC | $4.50 | | ADM3070E | 15 kV | 3.3 | 250kbps | Full | 256 | Yes | Open, Short | --- | SOIC | $1.60 | | ADM3071E | 15 kV | 3.3 | 250kbps | Full | 256 | No | Open, Short | - | SOIC | $1.55 | | ADM3072E | 15 kV | 3.3 | 250kbps | Half | 256 | Yes | Open, Short | --- | SOIC | $1.50 | | ADM3073E | 15 kV | 3.3 | 500kbps | Half | 256 | Yes | Open, Short | --- | SOIC | $1.60 | | ADM3074E | 15 kV | 3.3 | 500kbps | Full | 256 | No | Open, Short | --- | SOIC | $1.50 | | ADM3075E | 15 kV | 3.3 | 500kbps | Half | 256 | Yes | Open, Short | --- | SOIC | $1.50 | | ADM3076E | 15 kV | 3.3 | 16Mbps | Full | 256 | Yes | Open, Short | --- | SOIC | $1.60 | | ADM3077E | 15 kV | 3.3 | 16Mbps | Full | 256 | No | Open, Short | --- | SOIC | $1.55 | | ADM3078E | 15 kV | 3.3 | 16Mbps | Half | 256 | Yes | Open, Short | --- | SOIC | $1.53 | | ADM3483 | --- | 3.3 | 250kbps | Half | 32 | Yes | Open | --- | SOIC | $0.90 | | ADM3483E | 15 kV | 3.3 | 250kbps | Half | 32 | Yes | Open | --- | SOIC | $1.30 | | ADM3485 | --- | 3.3 | 10Mbps | Half | 32 | Yes | Open | --- | SOIC | $1.00 | | ADM3485E | 8 kV | 3.3 | 20Mbps | Half | 50 | Yes | Open | --- | DIP; SOIC | $1.30 | | ADM3486E | 15 kV | 3.3 | 2.5Mbps | Half | 32 | Yes | Open | --- | SOIC | $1.30 | | ADM3488 | --- | 3.3 | 250kbps | Full | 32 | No | Open | --- | SOIC | $0.90 | | ADM3488E | 15 kV | 3.3 | 250kbps | Full | 32 | No | Open | --- | SOIC | $1.30 | | ADM3490 | --- | 3.3 | 10Mbps | Full | 32 | No | Open | --- | SOIC | $1.00 | | ADM3490E | 15 kV | 3.3 | 12Mbps | Full | 32 | No | Open | --- | SOIC | $1.35 | | ADM3491 | --- | 3.3 | 10Mbps | Full | 32 | Yes | Open | --- | DIP; SOIC; SOP | $1.35 | | ADM3491E | 15 kV | 3.3 | 12Mbps | Full | 32 | Yes | Open | --- | SOIC | $1.40 | | ADM3493 | --- | 3.3 | 250kbps | Half | 256 | Yes | Open | --- | SOIC | $0.95 | | ADM483 | --- | 5 | 250kbps | Half | 32 | Yes | Open | --- | SOIC | $0.66 | | ADM483E | 15 kV | 5 | 250kbps | Half | 32 | Yes | Open | --- | DIP; SOIC | $1.25 | | ADM485 | --- | 5 | 5Mbps | Half | 32 | Yes | Open | --- | DIP; SOIC; SOP | $1.29 | | ADM4850 | --- | 5 | 115kbps | Half | 256 | Yes | Open, Short | --- | CSP; SOIC | $0.70 | | ADM4851 | --- | 5 | 500kbps | Half | 256 | Yes | Open, Short | --- | CSP; SOIC | $0.70 | | ADM4852 | --- | 5 | 2.5Mbps | Half | 256 | Yes | Open, Short | --- | CSP; SOIC | $0.70 | | ADM4853 | --- | 5 | 10Mbps | Half | 256 | Yes | Open, Short | --- | CSP; SOIC | $0.70 | | ADM4854 | --- | 5 | 115kbps | Full | 256 | No | Open, Short | --- | SOIC | $0.70 | | ADM4855 | --- | 5 | 500kbps | Full | 256 | No | Open, Short | --- | SOIC | $0.70 | | ADM4856 | --- | 5 | 2.5Mbps | Full | 256 | No | Open, Short | --- | SOIC | $0.70 | | ADM4857 | --- | 5 | 10Mbps | Full | 256 | No | Open, Short | --- | SOIC | $0.70 | | ADM488 | --- | 5 | 250kbps | Full | 32 | No | Open | --- | DIP; SOIC | $1.10 | | ADM489 | --- | 5 | 250kbps | Full | 32 | Yes | Open | --- | DIP; SOIC; SOP | $1.60 |

| * 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. | |  |  |  | |  |  | |  |  |  | | New RS-485 | | ADM2485 - High Speed, Isolated RS-485 Transceiver with Integrated Transformer Driver |  | | ADM485E - 5 V, 32 Nodes, ±15 kV ESD-Protected, 2.5Mbps Half-Duplex Transceiver |  | | ADM487E - 5 V, 128 Nodes, ±15 kV ESD-Protected, 250kps Half-Duplex Transceiver |  | | ADM1487E - 5 V, 128 Nodes, ±15 kV ESD-Protected, 2.5Mbps Half-Duplex Transceiver |  | | More... |  | | Design Tools | | IBIS Models |  |  | | Related Tech Info | | Application Notes |  | | Analog Dialogue |  | | Seminars |  | | More... |  | | Resources | | Selection Tables |  | | Press Releases |  | | Product Highlights |  | | More... |  | |  | |