ADM3485ARZ-REEL7

Drivers, Receivers, Transceivers Overview

The ADM3485ARZ-REEL7 is a half-duplex RS-485/RS-422 transceiver operating on a single 3.3 V supply. It supports data rates up to 10 Mbps with an 8 ns propagation delay skew. The device features independent driver and receiver enable inputs, allowing for low power shutdown mode with typical current of 2 nA. It accommodates up to 32 nodes on the bus due to a 12 kΩ input impedance and operates over a −7 V to +12 V common-mode range. Thermal shutdown and short-circuit protection are included.

Drivers, Receivers, Transceivers Feature Summary

• Half-duplex communication architecture with separate driver and receiver enable controls
• Low power consumption with dedicated shutdown mode reducing supply current to 2 nA
• Integrated thermal shutdown circuitry to prevent damage during bus contention or output shorts
• Fail-safe receiver design ensuring logic high output when differential inputs are floating

Drivers, Receivers, Transceivers Applications

• Low power RS-485 and RS-422 multipoint bus networks
• Industrial process control systems requiring reliable serial communication
• HVAC equipment utilizing standard differential signaling protocols

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix against official Analog Devices documentation to confirm package type and reel quantity. Ensure the component matches the required temperature range and electrical specifications for the target application environment before finalizing procurement decisions.

Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring half-duplex operation at speeds up to 10 Mbps. It is suitable for designs needing independent control of transmit and receive states via DE and RE pins. Consider the 8-lead SOIC package constraints and verify compatibility with 3.3 V logic interfaces.

Drivers, Receivers, Transceivers Part Context

This part belongs to the ADM34xx family of low-power differential line transceivers designed for RS-485 and RS-422 standards. The series includes variants with different data rates and duplex modes, such as the 250 kbps ADM3483 and full-duplex ADM3490. The ADM3485 specifically targets mid-speed half-duplex applications.

Drivers, Receivers, Transceivers Replacement Considerations

ADM3485ARZ is the tube version of this component. ADM3490ARZ offers full-duplex capability within the same package and speed class.