概述 | ||||||
這些收發器在驅動器禁用的空載或滿載狀態下,吸取的電源電流在120µA至500µA之間。另外,MAX481、MAX483與MAX487具有低電流關斷模式,僅消耗0.1µA。所有器件都工作在5V單電源下。 驅動器具有短路電流限制,并可以通過熱關斷電路將驅動器輸出置為高阻狀態,防止過度的功率損耗。接收器輸入具有失效保護特性,當輸入開路時,可以確保邏輯高電平輸出。 MAX487與MAX1487具有1/4單位負載的接收器輸入阻抗,使得總線上最多可以有128個MAX487/MAX1487收發器。使用MAX488-MAX491可以實現全雙工通信,而MAX481、MAX483、MAX485、MAX487與MAX1487則為半雙工應用設計。 |
Key Specifications: RS-422/485 Line Driver/Receivers | |||||||||||||||||||||||
Part Number | Tx/Rx | Duplex | VSUPPLY (V) |
ICC (mA) |
Data Rate (kbps) |
Tx EN | Rx EN | ICC (Shutdn.) (µA) |
Rx/Tx on Bus | Rx Failsafe w/ Inputs | Features | Slew Rate Limiting | Industry Qualified | Package/Pins | Smallest Available Pckg. (mm2) |
Oper. Temp. (°C) |
Price | ||||||
typ | min | typ | max w/pins | See Notes | |||||||||||||||||||
MAX1487 | 1Tx + 1Rx | Half | 5 | 0.3 | 2500 | Yes | Yes | - | 128 | Open | - | No | - |
|
16 |
|
$1.15 @1k | ||||||
MAX481 | Half | 0.5 | 2500 | Yes | Yes | 0.1 | 32 | Low Power Shutdown | MIL-STD-883B |
|
16 | $1.15 @1k | |||||||||||
MAX483 | Half | 0.35 | 250 | Yes | Yes | 0.1 | 32 | Low Power Shutdown | MIL-STD-883B |
|
16 | $1.15 @1k | |||||||||||
MAX485 | Half | 0.5 | 2500 | Yes | Yes | - | 32 | - | MIL-STD-883B |
|
16 | $1.15 @1k | |||||||||||
MAX487 | Half | 0.25 | 250 | Yes | Yes | 0.1 | 128 | Low Power Shutdown | MIL-STD-883B |
|
16 | $1.15 @1k | |||||||||||
MAX488 | Full | 0.12 | 250 | No | No | - | 32 | - | MIL-STD-883B |
|
16 | $1.15 @1k | |||||||||||
MAX489 | Full | 0.12 | 250 | Yes | Yes | - | 32 | - | - |
|
54 | $1.15 @1k | |||||||||||
MAX490 | Full | 0.3 | 2500 | No | No | - | 32 | - | MIL-STD-883B |
|
16 | $1.15 @1k | |||||||||||
MAX491 | Full | 0.3 | 2500 | Yes | Yes | - | 32 | - | MIL-STD-883B |
|
54 | $1.15 @1k | |||||||||||
See All RS-422/485 Line Driver/Receivers (159) |
圖表 |
原裝進口,現貨庫存,歡迎來電咨詢:聯系方式如下
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