The ISO3082DW is an Isolated 5V Half-duplex RS-485 Transceiver, isolated full-duplex differential line driver and receiver while the ISO3082 and ISO3088 device is isolated half-duplex differential line transceivers for TIA/EIA 485/422 applications. This device is ideal for long transmission lines because the ground loop is broken to allow for a much larger common-mode voltage range. The symmetrical isolation barrier of the device is tested to provide 2500Vrms of isolation for 60s per UL 1577 between the bus-line transceiver and the logic-level interface. Any cabled I/O can be subjected to electrical noise transients from various sources. These noise transients can cause damage to the transceiver and/or nearby sensitive circuitry if they are of sufficient magnitude and duration. This isolated device can significantly increase protection and reduce the risk of damage to expensive control circuits.
● Meets or exceeds TIA/EIA RS-485 requirements
● Signalling rate up to 20Mbps
● 1/8 Unit load up to 256 nodes on a bus
● Thermal shutdown protection
● 16pF Low bus capacitance (typical)
● 50kV/µs Typical transient immunity
● Fail-safe receiver for bus open, short, idle
● 3.3V Inputs are 5V tolerant
● 12kV HBM between bus pins and GND2, 6kV HBM between bus pins and GND1 - bus-pin ESD protection
● Green product and no Sb/Br
●Device has limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.
