MAX33049E

PRODUCTION

20Mbps Full-Duplex RS-485/RS-422 Transceivers with ±40kV ESD Protection

Data Sheet (Rev. 1) Product Selection Table

Part Models: 2
1ku List Price: price unavailable

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Overview

Integrated Protection Ensures Robust Communication
- ±25V Fault Protection Range on Driver Outputs/Receiver Inputs
- High ESD Protection
  - ±40kV Human Body Model (HBM) ESD
  - ±15kV Air-Gap ESD as per IEC 61000-4-2
  - ±10kV Contact ESD as per IEC 61000-4-2
- Short-Circuit Protected Outputs
- True Fail-Safe Receiver
- Hot-Swap Capability (MAX33049E)

Flexibility for Many Different Applications
- 3.0V to 5.5V Supply Range
- Up to 500kbps Data Rates (MAX33047E)
- Up to 20Mbps Data Rate (MAX33048E/MAX33049E)
- Available in 8-Pin and 14-Pin SOIC Packages
- Enables up to 256 Nodes on the Bus
- Wide -40°C to +125°C Operating Temperature

The MAX33047E/MAX33048E/MAX33049E are ±40kV ESD-protected full-duplex RS-485/RS-422 transceivers that operate from 3.0V to 5.5V and provide design flexibility for robust communication of up to 20Mbps.

These transceivers are optimized for robust communication in harsh industrial environments. They include integrated hot-swap protection and a true failsafe receiver, ensuring a logic-high output on the receiver when input signals are either shorted or open. The driver outputs/receiver inputs are protected against faults up to ±25V and can withstand ESD of up to ±15kV for air-gap discharge and ±10kV for contact discharge as per IEC 61000-4-2. The driver outputs are protected against short circuits and integrated thermal shutdown circuitry places the driver outputs into a high-impedance state during thermal overload events.

The MAX33047E/MAX33048E are available in an 8-pin SOIC package and the MAX33049E is available in a 14- pin SOIC package. These transceivers operate within a temperature range of -40°C to +125°.

APPLICATIONS

Programmable Logic Controller (PLC)
Factory Automation Equipment
Industrial Control Systems

Part Models: 2
1ku List Price: price unavailable

Documentation

Data Sheet 1

MAX33047E-49E: 20Mbps Full-Duplex RS-485/RS-422 Transceivers with ±40kV ESD Protection Data Sheet (Rev.1) 01/21/2025

User Guide 1

MAX33049E Evaluation Kit User Guide: Evaluates: MAX33049E (Rev.0) 01/21/2025

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
MAX33049EASD+	14-SOIC_N-150_MIL	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX33049EASD+T	14-SOIC_N-150_MIL	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

This is the most up-to-date revision of the Data Sheet.

Evaluation Kits

Evaluates: MAX33049E

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Features and Benefits

Easy Evaluation of the MAX33049E
Power/Ground Connections Through Screw Terminal Blocks
Screw Terminal Blocks for RS-485 Signals
Test Points for Measuring All Signals

Resistors and TVS Footprints for External Protection Devices
Proven PCB Layout
Fully Assembled and Tested

Product Details

The MAX33049E evaluation kit is a fully assembled and tested board. It demonstrates the functionality of the MAX33049E full-duplex 20Mbps RS-485 transceiver with ±25V fault protection and ±40kV ESD Human Body Model (HBM) for A/B and Y/Z data lines.

Resources

MAX33049EEVKIT Gerber Files
1/21/2025

MAX33049E Evaluation Kit User Guide: Evaluates: MAX33049E (Rev.0)
1/21/2025

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