The MAX487ECSA+ is a Low-power Transceiver for RS-485 and RS-422 communications in harsh environments. Each driver output and receiver input is protected against ±15kV electro-static discharge (ESD) shocks, without latch-up. These parts contain one driver and one receiver. The MAX487E feature reduced slew-rate drivers that minimize EMI and reduce reflections caused by improperly terminated cables, thus allowing error-free data transmission up to 250kbps. These transceivers draw as little as 120μA supply current when unloaded or when fully loaded with disabled drivers. Additionally, the MAX487E have a low-current shutdown mode in which they consume only 0.5μA. All parts operate from a single +5V supply. Drivers are short-circuit current limited and are protected against excessive power dissipation by thermal shutdown circuitry that places their outputs into a high-impedance state. The MAX487E is designed for half-duplex applications.
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