LTC2877 Series

±60V Rugged PROFIBUS RS485 Transceivers

Catalog

±60V Rugged PROFIBUS RS485 Transceivers

Part	Data Rate	Receiver Hysteresis	Voltage - Supply [Min]	Voltage - Supply [Max]	Operating Temperature [Max]	Operating Temperature [Min]	Supplier Device Package	Duplex	Mounting Type	Protocol	Package / Case	Type	Package / Case
Analog Devices LTC2877CDD#PBF	20 Mbps	240 mV	4.5 V	5.5 V	70 °C	0 °C	10-DFN (3x3)	Half	Surface Mount	RS485	10-WFDFN Exposed Pad	Transceiver
Analog Devices LTC2877IMSE#TRPBF	20 Mbps	240 mV	4.5 V	5.5 V	85 °C	-40 °C	10-MSOP-EP	Half	Surface Mount	RS485	10-MSOP 10-TFSOP Exposed Pad	Transceiver	0.118 in 3 Lead
Analog Devices LTC2877IMSE#PBF	20 Mbps	240 mV	4.5 V	5.5 V	85 °C	-40 °C	10-MSOP-EP	Half	Surface Mount	RS485	10-MSOP 10-TFSOP Exposed Pad	Transceiver	0.118 in 3 Lead
Analog Devices LTC2877HMSE#TRPBF	20 Mbps	240 mV	4.5 V	5.5 V	125 °C	-40 °C	10-MSOP-EP	Half	Surface Mount	RS485	10-MSOP 10-TFSOP Exposed Pad	Transceiver	0.118 in 3 Lead
Analog Devices LTC2877IDD#PBF	20 Mbps	240 mV	4.5 V	5.5 V	85 °C	-40 °C	10-DFN (3x3)	Half	Surface Mount	RS485	10-WFDFN Exposed Pad	Transceiver

Catalog

±60V Rugged PROFIBUS RS485 Transceivers

Key Features

• PROFIBUS IEC 61158-2 Compliant

• Protected from Overvoltage Line Faults to ±60V

• ±52kV ESD Interface Pins, ±15kV All Other Pins

• ±2kV (Level 4) IEC61000-4-4 Fast Transient Burst

• ±25V Working Common Mode Range

• 20Mbps Maximum Baud Rate

• 1.65V to 5.5V Logic Supply Pin for Flexible Digital Interfacing (LTC2877)

• 5V Supply Can Operate Down to 3V for Low Power, Low Swing Applications

• 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

• Wide Operating Temperature Range: –40°C to 125°C

• Available in Small DFN and MSOP Packages

Description

The LTC2876 and LTC2877 are PROFIBUS RS485 transceivers designed to meet the test specifications for PROFIBUS-DP masters and PROFIBUS-DP slaves, fully compatible with IEC 61158-2, type 3: medium attachment unit (MAU). With operation up to 20Mbps, the LTC2876/ LTC2877 supports all PROFIBUS data rates up to 12Mbps.The LTC2876 and LTC2877 are 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 range and full fail safe operation improve data communication reliability in noisy systems.The LTC2876 and LTC2877 meet PROFIBUS and RS485 specifications with a supply voltage of 4.5V to 5.5V but can operate down to 3V with reduced supply current.Product Selection GuidePART NUMBERLOGIC SUPPLY PINPACKAGELTC2876NODFN-8, MSOP-8LTC2877YESDFN-10, MSOP-10ApplicationsPROFIBUS-DPIndustrial Communication NetworksRS485 and RS422 Systems3V Low Voltage Differential Signaling