ADM489ABRMZ RS-485 and RS-422 by Analog Devices

RS-485 and RS-422
Status: Production
Series: ADM489A
RoHS: Compliant
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The ADM488A and ADM489A are low power, differential line transceivers suitable for communication on multipoint bus transmission lines. They are intended for balanced data transmission and comply with both RS-485 and RS-422 standards of the Electronics Industries Association (EIA). Both products contain a single differential line driver and a single differential line receiver, making them suitable for full-duplex data transfer. The ADM489A contains an additional receiver and driver enable control.The input impedance is 12 kΩ, allowing 32 transceivers to be connected on the bus. The ADM488A/ADM489A operate from a single 5 V ± 10% power supply.Excessive power dissipation that is caused by bus contention or output shorting is prevented by a thermal shutdown circuit. This feature forces the driver output into a high impedance state if, during fault conditions, a significant temperature increase is detected in the internal driver circuitry.The receiver contains a fail-safe feature that results in a logic high output state if the inputs are unconnected (floating).The ADM488A/ADM489A are fabricated on BiCMOS, an advanced mixed technology process combining low power CMOS with fast switching bipolar technology.The ADM488A/ADM489A are fully specified over the industrial temperature range and are available in SOIC and MSOP packages.

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Alternative Descriptions

5V 250kbps Full Duplex RS485 T | Analog Devices

Frequently Asked Questions

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What category does ADM489ABRMZ fall under?

The ADM489ABRMZ is listed under RS-485 and RS-422.

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You can view similar parts to ADM489ABRMZ when available in the RS-485 and RS-422 range under the specifications section at the bottom of the details page.

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Is the ADM489ABRMZ RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Analog Devices.

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