LTC2879X

PRODUCTION

±60V Fault Tolerant RS485/RS422 Transceiver with Operation to 175°C

Data Sheet (Rev. 0) Product Selection Table

Part Models: 2
1ku List Price: Starting From $33.44

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Overview

Guaranteed Operation from –55°C to 175°C
Fully Tested at 175°C
Protected from Overvoltage Line Faults to ±60V
±52kV ESD Interface Pins, ±15kV All Other Pins
Level 4 IEC61000-4-4 Electrical Fast Transient
±25V Working Common Mode Range
20Mbps Maximum Baud Rate

Operates with V_CC from 3V to 5.5V
PROFIBUS IEC 61158-2 Compliant (V_CC ≥ 4.5V)
Fully Balanced Differential Receiver Thresholds with 240mV Hysteresis for Superior Noise Tolerance and Low Duty Cycle Distortion
Receiver Failsafe for Open, Shorted and Terminated Conditions
Available in a Tiny 3mm × 3mm MSOP Package

The LTC2879X is a rugged RS485/RS422 transceiver designed to operate over a wide temperature range of –55°C to 175°C. Special processing steps are used to prevent intermetallic growth that can cause metal voids on standard parts operating at high temperatures. Lowdrift, low-leakage circuitry and lack of a thermal shutdown circuit allow the LTC2879X to meet critical specifications, tested 100% at 175°C.

The LTC2879X also meets the specifications for PROFIBUS-DP (IEC 61158-2) supporting all data rates from 9.6kbps to 12Mbps.

The LTC2879X is exceptionally robust, tolerating ±60V faults on the bus pins and protected to ±52kV ESD. These devices are suitable for harsh environments or where 24V power might be inadvertently connected. Extended ±25V input common mode operating range and full failsafe operation improve data communication reliability in noisy systems.

The LTC2879X meets RS485, RS422, and PROFIBUS-DP specifications with a supply voltage of 4.5V to 5.5V with full RS485/RS422 compatibility down to 3V.

Applications

Oil and Gas Exploration
High Temperature Industrial Control
PROFIBUS-DP
Military Systems
Harsh Environments

Part Models: 2
1ku List Price: Starting From $33.44

Documentation

Data Sheet 1

LTC2879X: ±60V Fault Tolerant RS485/RS422 Transceiver with Operation to 175°C Data Sheet (Rev.0) 05/07/2018

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
LTC2879XMS8E#PBF	8-Lead MSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC2879XMS8E#TRPBF	8-Lead MSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Feb 3, 2020 - 20_0128 Laser Top Mark for 8 Lead MSOP Packages Assembled in ADPG and UTAC
		PCN20_0128_Form Material_Report
LTC2879XMS8E#PBF	PRODUCTION
LTC2879XMS8E#TRPBF	PRODUCTION

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

Tools & Simulations

LTspice 1

LTC2879X LTSpice

IBIS Model 1

LTC2879X IBIS Model

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

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