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: 1987(E). 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
● Isolated RS-485/RS-422 Interfaces
● Industrial Field Networks
● INTERBUS
● Multipoint Data Transmission Systems
●### Features and Benefits
● Isolated, full-duplex RS-485/RS-422 transceiver
● ±8 kV ESD protection on RS-485 input/output pins
● 16 Mbps data rate
● Complies with ANSI TIA/EIA-485-A-1998 and ISO 8482: 1987(E)
● Suitable for 5 V or 3 V operation (VDD1)
● High common-mode transient immunity: >25 kV/μs
● Receiver has open-circuit, fail-safe design
● 32 nodes on the bus
● Thermal shutdown protection
● Safety and regulatory approvals
● UL recognition: 5000 V rms isolation voltage for 1 minute per UL 1577
● VDE certificate of conformity
● DIN EN 60747-5-2 (VDE 0884-10 Part 2): 2003-01
● DIN EN 60950 (VDE 0805): 2001-12; EN 60950: 2000
● VIORM = 848 V peak
● Operating temperature range: −40°C to +105°C
● Wide body, 16-lead SOIC package
