MAX485: Low-Power, Slew-Rate-Limited RS-485/RS-422 Transceivers FEATURES
The MAX481, MAX483, MAX485, MAX487–MAX491, and MAX1487 are lowpower transceivers for RS-485 and RS- 422 communication. Each part contains one driver and one receiver. The MAX483, MAX487, MAX488, and MAX489 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 MAX481, MAX485, MAX490, MAX491, and MAX1487 are not limited, allowing them to transmit up to 2.5Mbps.
These transceivers draw between 120µA and 500µA of supply current when unloaded or fully loaded with disabled drivers. Additionally, the MAX481, MAX483, and MAX487 have a low-current shutdown mode in which they consume only 0.1µA. 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 the driver 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 MAX487 and MAX1487 feature quarter-unit-load receiver input impedance, allowing up to 128 MAX487/ MAX1487 transceivers on the bus. Full-duplex communications are obtained using the MAX488–MAX491, while the MAX481, MAX483, MAX485, MAX487, and MAX1487 are designed for half-duplex applications.
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Souriau
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环形MIL规格连接器
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52252
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Switchcraft
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标准环形连接器 PLk Cbl End 5 F Sckt #16 ContCrmp3DC
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50876
Min : 1
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Amphenol Aerospace
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环形MIL规格触点 PIN 20 GA PC TAIL 38999
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53726
Min : 1
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Amphenol Pcd
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环形MIL规格连接器 2P Sz 18 Min Bayonet Straight Plug Pin
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59029
Min : 1
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Detail | |
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Amphenol Pcd
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环形MIL规格连接器 2P Sz 18 Min Bayonet Straight Plug Pin
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52124
Min : 1
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Bomar Interconnect
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射频适配器 - 系列之内 SPLICE ADAPTER F/F
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56361
Min : 1
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Cinch
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标准环形连接器 26500 55C 55#20 S BY RECP LC
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58408
Min : 1
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Cinch
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标准环形连接器 26500 16C 16#16 P RECP AN LC
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59265
Min : 1
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Detail | |
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TE Connectivity / DEUTSCH
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标准环形连接器
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57515
Min : 1
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-
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Detail | |
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HUBER+SUHNER
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射频适配器 - 系列之内 N plug(m) to N jack(f)
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54109
Min : 1
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Souriau
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环形MIL规格连接器 D38999 class G Jam nut receptacle Size B with 01 layout delivered without Female contacts
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59000
Min : 1
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TE Connectivity / DEUTSCH
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标准环形连接器
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53666
Min : 1
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TE Connectivity / DEUTSCH
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标准环形连接器
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50376
Min : 1
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Radiall
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射频适配器 - 系列之内 SMA(M) 2.9 S TR
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54280
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Souriau
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环形MIL规格连接器
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57315
Min : 1
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-
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Souriau
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环形MIL规格连接器
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53510
Min : 1
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Detail | |
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Amphenol Pcd
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环形MIL规格连接器 61P Sz24 Min Bayonet Straight Plug Pin
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55654
Min : 1
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-
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Detail | |
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Bomar Interconnect
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射频适配器 - 系列之内 BNC ISOLATED BLKHD JACK/JACK
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53389
Min : 1
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Detail | |
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Souriau
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环形MIL规格连接器 D38999 class G Jam nut receptacle Size B with 05 layout delivered without Male contacts
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55685
Min : 1
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-
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Detail | |
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TE Connectivity / DEUTSCH
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标准环形连接器
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56308
Min : 1
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Detail |