FEATURES
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 APPLICATIONS
Isolated RS-485/RS-422 interfaces Industrial field networks INTERBUS Multipoint data transmission systems GENERAL DESCRIPTION
The differential transmitter outputs and receiver inputs feature electrostatic discharge circuitry that provides protection to ±8 kV GALVANIC ISOLATION 05889-001 FUNCTIONAL BLOCK DIAGRAM VDD1 VDD2 ADM2490E Y TxD Z A RxD B GND1 Figure 1.
Analog Devices
