MAX33072E
+3V to +5.5V, Polarity Invert RS-485 Half-Duplex Transceiver with ±65V Fault Protection, ±40V CMR, and ±40kV ESD
Industry's Highest Common-Mode Range RS-485 at ±40V, with Highest ESD at ±40kV and ±65V of Fault Protection
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Overview
Features and Benefits
- Integrated Protection for Robust Communication
- Protection on Driver Outputs/Receiver Inputs (A, B Data Lines)
- ±65V Fault Protection Range on Driver Outputs/Receiver Inputs
- ±40V Common-Mode Range on Driver Outputs/Receiver Inputs
- ±40kV Human Body Model (JEDEC JS-001-2017) ESD Protection
- ±15kV Air Gap Discharge (IEC 61000-4-2) ESD Protection
- ±10kV Contact Discharge (IEC 61000-4-2) ESD Protection
- Hot-Swap Protection
- Short Circuit Protection
- Thermal Shutdown
- True Fail-Safe Guarantees Known Receiver Output State
- Wide Operating Temperature Range from -40°C to +125°C
- Protection on Driver Outputs/Receiver Inputs (A, B Data Lines)
- High-Performance Transceiver Enables Flexible Designs
- Compliant with RS-485 EIA/TIA-485 Standard
- 500kbps (MAX33072E), 2Mbps (MAX33073E) Maximum Data Rate
- 3V to 5.5V Supply Range
- 1/8 Unit Load for up to 256 Devices on the Bus
Product Details
The MAX33072E/MAX33073E are a family of fault-protected RS-485/RS-422 transceivers with high ±65V protection for overvoltage conditions on the communication bus lines, ensuring robust protection in harsh industrial environments. Both devices have ±40V of common-mode range (CMR) within VCCH (+4.5V to +5.5V), exceeding the RS-485 standard of -7V to +12V, suitable for electrically noisy environments where different systems have shifting ground levels relative to each other. They also incorporate a high ESD protection circuit capable of protecting against ±40kV of ESD HBM (human body model) for driver outputs and receiver inputs (A and B data lines). Each device contains one driver and one receiver and operates over the +3V to +5.5V supply range, making it convenient for designers to use one part with either +3.3V or +5V supply voltages across multiple end equipment.
These devices feature a polarity selection input (POL) that swaps the A and B data lines, allowing for software correction of cross-wired field cables.
The MAX33072E features slew-rate-limited outputs for data rates up to 500kbps, while the MAX33073E is rated up to 2Mbps for applications requiring higher bandwidth. These transceivers are optimized for robust communication in noisy environments. A true failsafe feature guarantees a logic-high on the receiver output when the inputs are open or shorted. Driver outputs are protected against short-circuit conditions. The receivers feature a 1/8 unit load input impedance, allowing up to 256 transceivers on a bus. The MAX33072E/MAX33073E are available in 8-pin SOIC and operate over the -40°C to +125°C temperature range.
Applications
- Agriculture and Heavy Machinery
- Elevator Control
- Home and Building Automation
- Industrial Automation Equipment
- Motion Controllers
- Power Supply and UPS
Product Categories
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
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IBIS Models
IBS
MAX33072E IBIS Model
1.82M
Design Resources
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 Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| MAX33072EASA+ | Material Declaration | Reliability Data | Small-Outline IC, Narrow (0.15in) | |
| MAX33072EASA+T | Material Declaration | Reliability Data | Small-Outline IC, Narrow (0.15in) | |
| Wafer Fabrication Data |
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.