LTC2862A 60V Fault Protected 3V to 5.5V RS485/RS422 Transceiver with Level 4 IEC ESD FEATURES DESCRIPTION n Protected from Overvoltage Line Faults to 60V The LTC 2862A is a low power, 20Mbps or 250kbps RS485/ n RS422 transceiver operating on 3V to 5.5V supplies with 3V to 5.5V Supply Voltage n 60V overvoltage fault protection on the interface pins 20Mbps or Low EMI 250kbps Data Rate n during all modes of operation, including power-down. 40kV HBM ESD Interface Pins, 15kV Other Pins n Improvements were made to the LTC2862 for greater ro- Enhanced Receiver and Failsafe Noise Immunity n bustness and signal integrity: 40kV HBM and Level 4 IEC IEC Level 4 ESD and EFT on Interface Pins n ESD protection on the interface pins increased resistance Extended Common Mode Range: 25V to electrical overstress increased receiver noise immunity n Guaranteed Failsafe Receiver Operation additional receiver noise filtering on the LTC2862A-2 and n High Input Impedance Supports 224 Nodes an improved failsafe function optimized for high speed in n MP-Grade Option Available (55C to 125C) the LTC2862A-1 and noise rejection in the LTC2862A-2. n Fully Balanced Differential Receiver Thresholds for Low EMI slew rate limited data transmission is available Low Duty Cycle Distortion in the 250kbps LTC2862A-2 option, while the LTC2862A-1 n Current Limited Drivers and Thermal Shutdown operates to 20Mbps. n Compliant with TIA/EIA-485-A n Pin Compatible with LTC2862 and LT 1785 Extended 25V input common mode range and full fail- n Available in DFN and Leaded Packages safe operation improve data communication reliability in n AEC-Q100 Qualified for Automotive Applications electrically noisy environments and in the presence of (LTC2862A W) large ground loop voltages. APPLICATIONS n Supervisory Control and Data Acquisition (SCADA) PRODUCT SELECTION GUIDE n Industrial Control and Instrumentation Networks MAX DATA n Automotive and Transportation Electronics PART NUMBER DUPLEX ENABLES RATE (bps) n Building Automation, Security Systems and HVAC LTC2862A-1 HALF YES 20M n Medical Equipment LTC2862A-2 HALF YES 250k n Lighting and Sound System Control All registered trademarks and trademarks are the property of their respective owners. TYPICAL APPLICATION LTC2862A-1 Receiving 10Mbps 200mV Differential Signal with 1MHz 25V Common Mode Sweep RS485 Link With Large Ground Loop Voltage LTC2862A LTC2862A A,B A,B V V CC1 CC2 50V/DIV RO1 R R RO2 RE1 RE2 AB DE1 DE2 AB 0.5V/DIV DI1 D D DI2 RO V GROUND LOOP RO 2862A TA01a 25V PEAK 5V/DIV GND1 GND2 2862A TA01b 100ns/DIV Rev. A 1 Document Feedback For more information www.analog.com LTC2862A ABSOLUTE MAXIMUM RATINGS (Note 1) Supply Voltages Operating Ambient Temperature Range (Note 4) V ............................................................. 0.3 to 6V LTC2862AC .............................................. 0C to 70C CC Logic Input Voltages (RE, DE, DI) .................. 0.3 to 6V LTC2862AI ...........................................40C to 85C Interface I/O: A, B ..................................... 60V to +60V LTC2862AH ....................................... 40C to 125C Receiver Output (RO) ......................0.3V to (V +0.3V) LTC2862AMP ..................................... 55C to 125C CC Storage Temperature Range .................. 65C to 150C PIN CONFIGURATION LTC2862A-1, LTC2862A-2 LTC2862A-1, LTC2862A-2 TOP VIEW TOP VIEW RO 1 8 V CC RO 1 8 V CC RE 2 7 B RE 2 7 B 9 DE 3 6 A DE 3 6 A DI 4 5 GND DI 4 5 GND S8 PACKAGE DD PACKAGE 8-LEAD (150mil) PLASTIC SO 8-LEAD (3mm 3mm) PLASTIC DFN EXPOSED PAD (PIN 9) CONNECT TO PCB GND T = 150C, = 120C/W, = 39C/W JMAX JA JC T = 150C, = 43C/W, = 5.5C/W JMAX JA JC ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LTC2862ACS8-1 PBF LTC2862ACS8-1 TRPBF 2862A1 8-Lead (150mil) Plastic SO 0C to 70C LTC2862AIS8-1 PBF LTC2862AIS8-1 TRPBF 2862A1 8-Lead (150mil) Plastic SO 40C to 85C LTC2862AHS8-1 PBF LTC2862AHS8-1 TRPBF 2862A1 8-Lead (150mil) Plastic SO 40C to 125C LTC2862AMPS8-1 PBF LTC2862AMPS8-1 TRPBF 2862A1 8-Lead (150mm) Plastic SO 55C to 125C LTC2862ACS8-2 PBF LTC2862ACS8-2 TRPBF 2862A2 8-Lead (150mil) Plastic SO 0C to 70C LTC2862AIS8-2 PBF LTC2862AIS8-2 TRPBF 2862A2 8-Lead (150mil) Plastic SO 40C to 85C LTC2862AHS8-2 PBF LTC2862AHS8-2 TRPBF 2862A2 8-Lead (150mil) Plastic SO 40C to 125C LTC2862AMPS8-2 PBF LTC2862AMPS8-2 TRPBF 2862A2 8-Lead (150mm) Plastic SO 55C to 125C LTC2862ACDD-1 PBF LTC2862ACDD-1 TRPBF LGYK 8-Lead (3mm 3mm) Plastic DFN 0C to 70C LTC2862AIDD-1 PBF LTC2862AIDD-1 TRPBF LGYK 8-Lead (3mm 3mm) Plastic DFN 40C to 85C LTC2862AHDD-1 PBF LTC2862AHDD-1 TRPBF LGYK 8-Lead (3mm 3mm) Plastic DFN 40C to 125C LTC2862ACDD-2 PBF LTC2862ACDD-2 TRPBF LGYM 8-Lead (3mm 3mm) Plastic DFN 0C to 70C LTC2862AIDD-2 PBF LTC2862AIDD-2 TRPBF LGYM 8-Lead (3mm 3mm) Plastic DFN 40C to 85C LTC2862AHDD-2 PBF LTC2862AHDD-2 TRPBF LGYM 8-Lead (3mm 3mm) Plastic DFN 40C to 125C Rev. A 2 For more information www.analog.com