MAX14775E

PRODUCTION

±65V Fault Protected 500Kbps/20Mbps Half-Duplex RS-485/RS-422 Transceivers

Robust RS-485 increases uptime

Data Sheet (Rev. 0) Product Selection Table

Part Models: 4
1ku List Price: Starting From $3.95

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Overview

Integrated Protection Ensures for Robust Communication
- ±65V Fault Protection Range on Driver Outputs/Receiver Inputs
- ±25V Common Mode Range on the Receiver Inputs
- Large Receiver Hysteresis Increases Noise Tolerance
- Hot-Swap Protection
- Thermal Shutdown
High-Performance Transceiver Enables Flexible Designs
- Compliant with RS-485 EIA/TIA-485 Standard
- 20Mbps (MAX14775E)/500kbps (MAX14776E) Maximum Data Rate
- 3V to 5.5V Supply Range
- Up to 100 Devices on the Bus

The MAX14775E/MAX14776E fault-protected RS-485/RS-422 transceivers feature ±65V protection for overvoltage signal faults on communication bus lines, ensuring communication in harsh industrial environments. Each device contains one driver and one receiver and operates over the 3V to 5.5V supply range. The MAX14775E is optimized for high-speed data rates up to 20Mbps. The MAX14776E features slew-rate limited outputs for data rates up to 500kbps.

These transceivers are optimized for robust communication in noisy environments. A large 200mV (typ) hysteresis on receiver inputs ensure for high noise rejection and a 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 MAX14775E/MAX14776E receivers feature a 1/3-unit load input impedance, allowing up to 100 transceivers on a bus.

The MAX14775E/MAX14776E are available in 8-pin SOIC and 8-pin TDFN-EP packages and operate over the -40°C to +125°C temperature range.

Applications

HVAC
Industrial Field Bus Networks
Motion Controllers

Part Models: 4
1ku List Price: Starting From $3.95

Documentation

Data Sheet 1

MAX14775E-MAX14776E: ±65V Fault Protected 500Kbps/20Mbps Half-Duplex RS-485/RS-422 Transceivers Data Sheet (Rev.0) 02/27/2017

Technical Articles 3

Calculating the Maximum Number of Nodes on an RS-485 Bus 09/29/2021

Guidelines for Proper Wiring of an RS-485 (TIA/EIA-485-A) Network 11/19/2001

Guide to Selecting and Using RS-232, RS-422, and RS-485 Serial Data Standards 12/29/2000

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
MAX14775EASA+	Small-Outline IC, Narrow (0.15in)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX14775EASA+T	Small-Outline IC, Narrow (0.15in)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX14775EATA+	Thin Dual Flatpack No Leads, Exposed Pad	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX14775EATA+T	Thin Dual Flatpack No Leads, Exposed Pad	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

May 22, 2018 - 1702N ASSEMBLY
		pcn_1702n
MAX14775EASA+	PRODUCTION
MAX14775EASA+T	PRODUCTION
Apr 27, 2024 - 2400 ASSEMBLY
		pcn_2400
MAX14775EATA+	PRODUCTION
MAX14775EATA+T	PRODUCTION

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

Tools & Simulations

IBIS Model 1

MAX14775E IBIS Model

Evaluation Kits

Evaluation Kit for the MAX14775E/MAX14776E

Buy Now View Details

Features and Benefits

Operates From a Single 3V to 5V Supply
Terminal Block Connectors for Easy RS-485/RS-422 Evaluation
Fully Assembled and Tested

Product Details

The MAX14775E evaluation kit (EV kit) is a fully assembled and tested PCB that demonstrates the functionality of the MAX14775 20Mbps RS-485/RS-422 fault-protected transceiver.

The MAX14775E EV kit may also be used to evaluate the MAX14776E.