ADM3061EBRZ

Overview

The ADM3061EBRZ-R7 is a half-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 full receiver fail-safe capabilities, including short-circuit, open circuit, and bus idle detection. The component is housed in an 8-lead narrow-body SOIC package and supports operation across extended temperature ranges.

Feature Summary

• IEC 61000-4-2 Level 4 ESD protection on bus pins without latch-up or damage
• Full hot swap support allowing glitch-free power-up and power-down
• Receiver fail-safe design ensuring logic high output during shorts or open circuits
• Thermal shutdown circuitry prevents excessive power dissipation during fault conditions

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 packaging type and grade. Confirm that the procurement channel sources directly from authorized distributors to ensure component authenticity. Cross-reference the manufacturer part number with the latest datasheet revision to validate current specifications before finalizing acquisition.

Selection Notes

Select this model for applications requiring robust ESD protection and reliable communication over long cable runs due to its 500 kbps data rate capability. Ensure the system design accommodates the 8-lead SOIC package dimensions and thermal requirements. Verify compatibility with the target microcontroller logic levels and confirm that the half-duplex architecture aligns with the bidirectional communication needs of the network topology.

Part Context

This component belongs to the ADM306xE family of RS-485 transceivers designed for harsh industrial environments. The series includes variants supporting different duplex modes and data rates, such as the 50 Mbps ADM3065E. The ADM3061E specifically targets cost-sensitive applications requiring high reliability and standard RS-485 compliance without the complexity of isolated interfaces.

Replacement Considerations

ADM3061EARMZ (MSOP Package)

FAQ

Does the ADM3061E support PROFIBUS communication?

Yes, the ADM3061E is fully compliant with the PROFIBUS standard when the supply voltage (VCC) is greater than or equal to 4.5 V.

What happens if the receiver inputs are shorted or open?

The device features a full receiver fail-safe mechanism that guarantees a logic high receiver output when the receiver inputs are shorted, open, or connected to a terminated transmission line with all drivers disabled.

How does the device handle bus contention or output shorting?

A thermal shutdown circuit prevents excessive power dissipation caused by bus contention or output shorting. If a significant temperature increase is detected, the driver output is forced into a high impedance state.