MAX487ECSA ESD保护、限摆率、低功耗、RS-485/RS-422收发器
日期：2014-11-5概述
The MAX481E, MAX483E, MAX485E, MAX487E- MAX491E, and MAX1487E are low-power transceivers 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 latchup. These parts contain one driver and one receiver. The MAX483E, MAX487E, MAX488E, and MAX489E 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. The driver slew rates of the MAX481E, MAX485E, MAX490E, MAX491E, and MAX1487E are not limited, allowing them to transmit up to 2.5Mbps.These transceivers draw as little as 120μA supply current when unloaded or when fully loaded with disabled drivers (see Selector Guide). Additionally, the MAX481E, MAX483E, and 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 receiver input has a fail-safe feature that guarantees a logic-high output if the input is open circuit.
The MAX487E and MAX1487E feature quarter-unit-load receiver input impedance, allowing up to 128 transceivers on the bus. The MAX488E-MAX491E are designed for full-duplex communications, while the MAX481E, MAX483E, MAX485E, MAX487E, and MAX1487E are designed for half-duplex applications. For applications that are not ESD sensitive see the pinand function-compatible MAX481, MAX483, MAX485, MAX487-MAX491, and MAX1487.
关键特性
For Fault-Tolerant Applications:
MAX3430: ±80V Fault-Protected, Fail-Safe, 1/4- Unit Load, +3.3V, RS-485 Transceiver MAX3080-MAX3089: Fail-Safe, High-Speed (10Mbps), Slew-Rate-Limited, RS-485/RS-422 TransceiversFor Space-Constrained Applications:
MAX3460-MAX3464: +5V, Fail-Safe, 20Mbps, Profibus, RS-485/RS-422 Transceivers MAX3362: +3.3V, High-Speed, RS-485/RS-422 Transceiver in a SOT23 Package MAX3280E-MAX3284E: ±15kV ESD-Protected, 52Mbps, +3V to +5.5V, SOT23, RS-485/RS-422 True Fail-Safe Receivers MAX3030E-MAX3033E: ±15kV ESD-Protected, +3.3V, Quad RS-422 TransmittersFor Multiple Transceiver Applications:
MAX3293/MAX3294/MAX3295: 20Mbps, +3.3V, SOT23, RS-485/RS-422 TransmittersFor Fail-Safe Applications:
MAX3440E-MAX3444E: ±15kV ESD-Protected, ±60V Fault-Protected, 10Mbps, Fail-Safe RS-485/J1708 TransceiversFor Low-Voltage Applications:
MAX3483E/MAX3485E/MAX3486E/MAX3488E/ MAX3490E/MAX3491E: +3.3V Powered, ±15kV ESD-Protected, 12Mbps, Slew-Rate-Limited, True RS-485/RS-422 Transceivers
应用
工业控制局域网
电平转换器
低功耗RS-422收发器
低功耗RS-485收发器
用于EMI敏感应用的收发器
深圳斯普仑科技有限公司
Shenzhen Spring Technology Co.,Ltd
地址：深圳市福田区振华路122号海外装饰大厦A座211室
Add：Shenzhen futian district zhenhua road 122 overseas decoration building, room 211, block A,
Guangdong Province 518031
手机（Mobile）：(+86) 139 2656 7525 李先生/江小姐
电话（Tel）：(+86-755) 8350 5153 83466125
传真（Fax）：(+86-755) 8350 2530
QQ：1563538547 534192423
邮箱: 13926567525@139.com
网址：www.szspl-ic.com
www.splkj.com