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RS-485

Description
Analog Devices offers a wide range of RS-485 Transceivers to suit our customers’ needs. ADI’s RS-485 portfolio includes integrated iCoupler® Isolated RS-485 Transceivers, that are superior to the discrete optocoupler solutions.

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 induced noise signals that can appear as common mode voltages on a network.

The most common use of RS-485 is in RS-485 based industrial fieldbus networks (connecting programmable logic controllers and motor controllers etc..) Other common uses are point of sale terminals in stores, uninterruptible power supplies (UPS) and remote meters. An Analog Devices RS-485 transceiver delivers all the functions of the EIA-485 standard and much more...

RS-485

The following selection table contains information for Isolated RS-485 Transceivers.

Part FD/HD Data Rate Isolation
Rating (V rms)		 Temperature
Range (C)		 Package Integrated
Transformer
Driver		 Price@1KU
RS-485 Transceivers
ADM2483 HD 500 Kbps 2500 -40 to +85 16 Wide SO -- $3.00
ADM2485 HD 16 Mbps 2500 -40 to +85 16 Wide SO Yes $5.50
ADM2486 HD 20 Mbps 2500 -40 to +85 16 Wide SO -- $4.98
ADM2490E FD 16 Mbps 5000 -40 to +105 16 Wide SO -- $4.50
ADM2491E FD/HD 16 Mbps 5000 -40 to +85 16 Wide SO -- $4.70

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The following selection table contains information for RS-485 Transceivers.

Part# ESD-Protection Pwr Supply (Vnom) Data Rate Full-Half Duplex # of Nodes On Bus Drvr/Rcvr Enable Fail Safe Available Packages Price* (1000 pcs.)
ADM4850 --- 5 115kbps Half 256 Yes Open, Short CSP; SOIC $0.70
ADM4854 --- 5 115kbps Full 256 No Open, Short SOIC $0.70
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
ADM3483E 15 kV 3.3 250kbps Half 32 Yes Open SOIC $1.30
ADM3488E 15 kV 3.3 250kbps Full 32 No Open SOIC $1.30
ADM487E 15 kV 5 250kbps Half 128 Yes Open SOIC $1.30
ADM3488 --- 3.3 250kbps Full 32 No Open SOIC $0.90
ADM3493 --- 3.3 250kbps Half 256 Yes Open SOIC $0.95
ADM3483 --- 3.3 250kbps Half 32 Yes Open SOIC $0.90
ADM483 --- 5 250kbps Half 32 Yes Open SOIC $0.66
ADM488 --- 5 250kbps Full 32 No Open DIP; SOIC $1.10
ADM489 --- 5 250kbps Full 32 Yes Open DIP; SOIC; SOP $1.60
ADM483E 15 kV 5 250kbps Half 32 Yes Open DIP; SOIC $1.25
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
ADM4851 --- 5 500kbps Half 256 Yes Open, Short CSP; SOIC $0.70
ADM4855 --- 5 500kbps Full 256 No Open, Short SOIC $0.70
ADM1487E 15 kV 5 2.5Mbps Half 128 Yes Open SOIC $1.30
ADM3486E 15 kV 3.3 2.5Mbps Half 32 Yes Open SOIC $1.30
ADM485E 15 kV 5 2.5Mbps Half 32 Yes Open SOIC $1.30
ADM4852 --- 5 2.5Mbps Half 256 Yes Open, Short CSP; SOIC $0.70
ADM4856 --- 5 2.5Mbps Full 256 No Open, Short SOIC $0.70
ADM485 --- 5 5Mbps Half 32 Yes Open DIP; SOIC; SOP $1.29
ADM3490 --- 3.3 10Mbps Full 32 No Open SOIC $1.00
ADM3485 --- 3.3 10Mbps Half 32 Yes Open SOIC $1.00
ADM4853 --- 5 10Mbps Half 256 Yes Open, Short CSP; SOIC $0.70
ADM4857 --- 5 10Mbps Full 256 No Open, Short SOIC $0.70
ADM3491 --- 3.3 10Mbps Full 32 Yes Open DIP; SOIC; SOP $1.35
ADM3490E 15 kV 3.3 12Mbps Full 32 No Open SOIC $1.35
ADM3491E 15 kV 3.3 12Mbps Full 32 Yes Open SOIC $1.40
ADM3485E 8 kV 3.3 12Mbps Half 50 Yes Open DIP; SOIC $1.30
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
ADM1486 --- 5 30Mbps Half 50 Yes Open SOIC $2.05
ADM1485 --- 5 30Mbps Half 32 Yes Open DIP; SOIC; SOP $1.61

* 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.

Sorted by Data Rate (Ascending)

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Learn all about the newest RS-485 parts in the Analog Devices RS-485 Applications Bulletin, (pdf., 2,736 K).

Helpful New Tool - Try the Analog Devices RS-485 Cross Reference Guide , (pdf., 789 K)

Learn more about ADI’s Digital Isolation: iCoupler® Frequently Asked Questions .

View more Analog Devices Digital Isolation Products.