ADM2484E: Signal Isolated RS-485 Transceiver Full/Half Duplex |
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 half-duplex 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 ...More
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 half-duplex 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.
The differential transmitter outputs and receiver inputs feature electrostatic discharge circuitry that provides protection up to ±15 kV using the human body model (HBM). The logic side of the device can be powered with either a 5 V or a 3.3 V supply, whereas the bus side requires an isolated 3.3 V supply.
The device has current-limiting and thermal shutdown features to protect against output short circuits and situations where bus contention causes excessive power dissipation.
Applications| 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 |
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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