ADM2490EBRWZ-REEL7
数据手册.pdf高速， ESD保护，全双工， iCoupler隔离RS- 485收发器 High Speed, ESD-Protected, Full-Duplex, iCoupler Isolated RS-485 Transceiver
Product Details
The ADM2490E is an isolated data transceiver with ±8 kV ESD protection that is suitable for high speed, full-duplex communication on multipoint transmission lines. It is designed for balanced transmission lines and complies with ANSI TIA/EIA-485-A-1998 and ISO 8482: 1987E. The device employs Analog Devices, Inc., iCoupler® 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.
Applications
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- Isolated RS-485/RS-422 Interfaces
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- Industrial Field Networks
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- INTERBUS
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- Multipoint Data Transmission Systems
### Features and Benefits
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- Isolated, full-duplex RS-485/RS-422 transceiver
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- ±8 kV ESD protection on RS-485 input/output pins
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- 16 Mbps data rate
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- Complies with ANSI TIA/EIA-485-A-1998 and ISO 8482: 1987E
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- Suitable for 5 V or 3 V operation VDD1
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- High common-mode transient immunity: >25 kV/μs
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- Receiver has open-circuit, fail-safe design
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- 32 nodes on the bus
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- Thermal shutdown protection
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- Safety and regulatory approvals
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- UL recognition: 5000 V rms isolation voltage for 1 minute per UL 1577
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- VDE certificate of conformity
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- DIN EN 60747-5-2 VDE 0884-10 Part 2: 2003-01
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- DIN EN 60950 VDE 0805: 2001-12; EN 60950: 2000
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- VIORM = 848 V peak
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- Operating temperature range: −40°C to +105°C
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- Wide body, 16-lead SOIC package
