ADM2490E: High Speed ESD Protected Full-Duplex iCoupler(R) Isolated RS-485 Transceiver
The ADM2490E is an isolated data transceiver with ±8 kV ESD protection that is suitable for high speed, full-duplex communi-cation on multipoint transmission lines. It is designed for balanced transmission lines and complies with ANSI TIA/EIA-485-A-1998 and ISO 8482: 1987(E). The device employs Analog Devices, Inc., iCoupler(R) technology to combine a 2-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 to ±8 kV using the human body model (HBM). The logic side of the device can be powered with either a 5 V or a 3 V supply, whereas the bus side requires an isolated 5 V supply.
The device has current-limiting and thermal shutdown features to protect against output short circuits and situations where bus contention could cause excessive power dissipation.
The ADM2490E is available in a wide body, 16-lead SOIC package and operates over the -40°C to +105°C temperature range.
Application
- Isolated RS-485/RS-422 Interfaces
- Industrial Field Networks
- INTERBUS
- Multipoint Data Transmission Systems
ADM2490E 特点
- Isolated Full Duplex RS-485/RS-422 Transceiver
- ±8 kV ESD Protection on RS-485 I/O Pins
- 16 Mbps Data Rate
- Complies with ANSI TIA/EIA RS-485-A-1998 and ISO 8482:1987(E)
- High Common Mode Transient Immunity: >25kV/ μs
- Suitable for 5 V or 3 V Operation (VDD1)
- Receiver Open-circuit Fail-safe Design
- Thermal Shutdown Protection
- Safety and Regulatory Approvals (See Data Sheet for Details)
- Operating Temperature Range: -40° to 105°C
- Wide Body 16-lead SOIC package
ADM2490E 功能框图
| 产品型号 | 产品状态 | 封装 | 引脚 | 温度范围 |
|---|---|---|---|---|
| ADM2490EBRWZ | 量产 | 16 ld SOIC - Wide | 16 | 汽车级 |
| ADM2490EBRWZ-REEL7 | 量产 | 16 ld SOIC - Wide | 16 | 汽车级 |