ADM3063EARZ-R7

Overview

The ADM3063EARZ-R7 is a full-duplex RS-485 transceiver manufactured by Analog Devices Inc. It operates within a supply voltage range of 3.0 V to 5.5 V and supports data rates up to 500 kbps. The device provides IEC 61000-4-2 electrostatic discharge protection rated at ±12 kV for both contact and air discharge, alongside HBM ratings of ±30 kV. It features a 1/4 unit load input impedance, allowing connection of up to 128 transceivers on the bus. The component includes receiver fail-safe capabilities for short-circuit, open circuit, and bus idle conditions, as well as thermal shutdown protection. It is housed in a 14-lead narrow-body SOIC package.

Feature Summary

• IEC 61000-4-2 ESD protection on bus pins
• Full hot swap support with glitch-free power-up/power-down
• Receiver fail-safe for short-circuit, open circuit, and bus idle states
• Thermal shutdown circuitry prevents excessive power dissipation

Applications

• Industrial fieldbuses
• Process control systems
• Building automation networks
• PROFIBUS networks
• Motor control servo drives and encoders

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and temperature grade. Confirm that the R7 suffix corresponds to the reel packaging format required for automated assembly processes. Ensure compatibility with the target PCB footprint for the 14-lead narrow-body SOIC package before finalizing procurement orders.

Selection Notes

Select this model when full-duplex communication is required for RS-485 applications. It is suitable for long cable runs due to its 500 kbps data rate capability. Verify that the system does not require a separate VIO logic supply pin, as this specific variant lacks that feature compared to other models in the series. Ensure the operating environment falls within the specified industrial temperature range.

Part Context

This component belongs to the ADM306xE family of RS-485 transceivers designed for robust industrial communication. The family differentiates between half-duplex and full-duplex configurations, as well as varying data rates. This specific part represents the full-duplex option optimized for lower-speed, long-distance transmission environments requiring high noise immunity.

Replacement Considerations

ADM3067EARMZ-R7 (50 Mbps version)

FAQ

Does the ADM3063E have a separate VIO logic supply pin?

No, the ADM3063E does not feature a VIO logic supply pin; its logic interface operates directly from the VCC supply.

What is the maximum number of transceivers supported on the bus?

The device features a 1/4 unit load input impedance, allowing up to 128 transceivers to be connected onto a single bus.

How does the device handle bus contention or output shorting?

A thermal shutdown circuit detects significant temperature increases in the internal driver circuitry during fault conditions and forces the driver output into a high impedance state.