ADM3490ARZ-REEL7
Single Transmitter/Receiver RS-422/RS-485 8Pin SOIC N T/R
Product Details
The ADM3483/ADM3485/ADM3488/ADM3490/ADM3491 are low power, differential line transceivers designed to operate using a single 3.3 V power supply. Low power consumption, coupled with a shutdown mode, makes the ADM3483/ADM3485/ADM3488/ ADM3490/ADM3491 ideal for power-sensitive applications.
The ADM3488/ADM3490/ADM3491 feature full-duplex com-munication, while the ADM3483/ADM3485 are designed for half-duplex communication.
The ADM3485/ADM3490/ADM3491 transmit at up to 10 Mbps. The receiver input impedance is 12 kΩ, allowing up to 32 transceivers to be connected on the bus. A thermal shutdown circuit prevents excessive power dissipation caused by bus contention or by output shorting. If a significant temperature increase is detected in the internal driver circuitry during fault conditions, then the thermal shutdown circuit forces the driver output into a high impedance state. If the inputs are unconnected floating, the receiver contains a fail-safe feature that results in a logic high output state. The parts are fully specified over the commercial and industrial temperature ranges. The ADM3483/ADM3485/ADM3488/ADM3490 are available in 8-lead SOIC_N; the ADM3491 is available in a 14-lead SOIC_N.
**Applications**
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- Low-Power RS-485 Applications
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- Telecom
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- Industrial Process Control
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- HVAC
### Features and Benefits
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- Operate with 3.3 V supply
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- Interoperable with 5 V logic
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- EIA RS-485/RS-422 Compliant over Full Common-Range
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- Data Rate Options: 10 Mbps
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- Half and Full Duplex Options
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- Up to 32 Transceivers on a Bus
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- -7V to +12V Bus Common Mode Range
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- Specified over –40°C to +85°C Temperature Range
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- 8 ns skew
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- Available in 8-Lead SOIC