ADM2484E Half/Full-Duplex ICoupler Isolated RS-485 Transceiver
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 the bus contention causes excessive power dissipation.
- Isolated RS-485/RS-422 interfaces
- Industrial field networks
- Multipoint data transmission systems
- Supply Voltage: 3.3~5V
- Data Rate: 500 kbps
- Isolated, RS-485/RS-422 transceiver, configurable as half- or full-duplex
- ±15 kV ESD protection on RS-485 input/output pins
- Complies with ANSI TIA/EIA RS-485-A-1998 and ISO 8482: 1987(E)
- Operating temperature range: −40°C to +85°C
- Widebody: 16-lead
- Package: SOIC
Note: Product Images are shown for illustrative purposes only and may differ from actual product.