The DS485 is a low-power transceiver for RS-485 and RS-422 communication. The device contains one driver and one receiver. The drivers slew rate allows for operation up to 2.5 Mbps (see section).
●The transceiver draws 200 μA of supply current when unloaded or fully loaded with the driver disabled and operates from a single +5V supply.
●The driver is short-circuit current limited and is protected against excessive power dissipation by thermal shutdown circuitry that places the driver outputs into TRI-STATE (High Impedance state) under fault conditions. The driver ensures a minimum of 1.5V differential output voltage with maximum loading across the common mode range (VOD3).
●The receiver has a failsafe feature that ensures a logic-high output if the input is open circuit.
●The DS485 is available in 8-pin SOIC and PDIP packages and is characterized for Industrial and Commercial temperature range operation.
● Meets TIA/EIA RS-485 Multipoint Standard
● ensured Full Load Output Voltage (V OD3)
● Low Quiescent Current: 200 μA typ
● −7V to +12V Common-Mode Input Voltage Range
● TRI-STATE Outputs on Driver and Receiver
● AC Performance:
● Driver Transition Time: 25 ns typ
● Driver Propagation Delay: 40 ns typ
● Driver Skew: 1 ns typ
● Receiver Propagation Delay: 200 ns typ
● Receiver Skew: 20 ns typ
● Half-Duplex Flow Through Pinout
● Operates From a Single 5V Supply
● Allows Up To 32 Transceivers on the Bus
● Current-Limiting and Thermal Shutdown For Driver Overload Protection
● Industrial Temperature Range Operation
● Pin and Functional Compatible With MAX485 and LTC485
