ADM3077EYRZ-REEL7
3.3 V , 【 15千伏ESD保护,半双工和全双工, RS - 485 / RS -422收发器 3.3 V, 【15 kV ESD-Protected, Half- and Full-Duplex, RS-485/RS-422 Transceivers
Product Details
The ADM307xE are 3.3 V, low power data transceivers with ±15 kV ESD protection suitable for full- and half-duplex communication on multipoint bus transmission lines. They are designed for balanced data transmission, and they comply with TIA/EIA standards: RS-485 and RS-422.
The devices have a ⅛ unit load receiver input impedance, which allows up to 256 transceivers on a bus. Because only one driver should be enabled at any time, the output of a disabled or powered-down driver is tristated to avoid overloading the bus.
The receiver inputs have a true fail-safe feature, which eliminates the need for external bias resistors and ensures a logic high output level when the inputs are open or shorted. This guarantees that the receiver outputs are in a known state before communication begins and when communication ceases.
**Applications**
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- Power/energy metering
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- Industrial control
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- Lighting systems
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- Telecommunications
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- Security systems
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- Instrumentation
### Features and Benefits
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- TIA/EIA RS-485/RS-422 compliant
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- ±15 kV ESD protection on RS-485 input/output pins
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- Data rates
ADM3076E/ADM3077E/ADM3078E: 16 Mpbs
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- Half- and full-duplex options
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- True fail-safe receiver inputs
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- Up to 256 nodes on the bus
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- −40°C to +125°C temperature option
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- Hot-swap input structure on DE and RE pins
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- Reduced slew rates for low EMI
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- Low power shutdown current all except ADM3071E/ ADM3074E/ADM3077E
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- Outputs high-Z when disabled or powered off
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- See data sheet for addional features