LTC2864 - ±60V Fault Protected 3V to 5.5V RS485/RS422 Transceivers

The LTC®2862/LTC2863/LTC2864/LTC2865 are low power, 20Mbps or 250kbps RS485/RS422 transceivers operating on 3V to 5.5V supplies that feature ±60V overvoltage fault protection on the data transmission lines during all modes of operation, including power-down. Low EMI slew rate limited data transmission is available in a logic-selectable 250kbps mode in the LTC2865 and in 250kbps versions of the LTC2862-LTC2864. Enhanced ESD protection allows these parts to withstand ±15kV HBM on the transceiver interface pins without latchup or damage.

Extended ±25V input common mode range and full failsafe operation improve data communication reliability in electrically noisy environments and in the presence of large ground loop voltages.

Features

Protected from Overvoltage Line Faults to ±60V
3V to 5.5V Supply Voltage
20Mbps or Low EMI 250kbps Data Rate
±15kV ESD Interface Pins, ±8kV All Other Pins
Extended Common Mode Range: ±25V
Guaranteed Failsafe Receiver Operation
High Input Impedance Supports 256 Nodes
1.65V to 5.5V Logic Supply Pin (VL) for Flexible Digital Interface (LTC2865)
MP-Grade Option Available (–55°C to 125°C)
Fully Balanced Differential Receiver Thresholds for Low Duty Cycle Distortion
Current Limited Drivers and Thermal Shutdown
Pin Compatible with LT1785 and LT1791
Available in DFN and Leaded Packages

Typical Application

Applications

Supervisory Control and Data Acquisition (SCADA)
Industrial Control and Instrumentation Networks
Automotive and Transportation Electronics
Building Automation, Security Systems and HVAC
Medical Equipment
Lighting and Sound System Control

Packaging

**Order Information**
Part Number	Package	Temp	Price(1-99)	Price (1k)*
LTC2864CDD-1#PBF	3x3 DFN-10	C	$3.64	$2.55
LTC2864CDD-1#TRPBF	3x3 DFN-10	C		$2.61
LTC2864CDD-2#PBF	3x3 DFN-10	C	$3.64	$2.55
LTC2864CDD-2#TRPBF	3x3 DFN-10	C		$2.61
LTC2864CS-1#PBF	SO-14	C	$3.64	$2.55
LTC2864CS-1#TRPBF	SO-14	C		$2.61
LTC2864CS-2#PBF	SO-14	C	$3.64	$2.55
LTC2864CS-2#TRPBF	SO-14	C		$2.61
LTC2864HDD-1#PBF	3x3 DFN-10	H	$4.82	$3.37
LTC2864HDD-1#TRPBF	3x3 DFN-10	H		$3.43
LTC2864HDD-2#PBF	3x3 DFN-10	H	$4.82	$3.37
LTC2864HDD-2#TRPBF	3x3 DFN-10	H		$3.43
LTC2864HS-1#PBF	SO-14	H	$4.82	$3.37
LTC2864HS-1#TRPBF	SO-14	H		$3.43
LTC2864HS-2#PBF	SO-14	H	$4.82	$3.37
LTC2864HS-2#TRPBF	SO-14	H		$3.43
LTC2864IDD-1#PBF	3x3 DFN-10	I	$4.19	$2.93
LTC2864IDD-1#TRPBF	3x3 DFN-10	I		$2.99
LTC2864IDD-2#PBF	3x3 DFN-10	I	$4.19	$2.93
LTC2864IDD-2#TRPBF	3x3 DFN-10	I		$2.99
LTC2864IS-1#PBF	SO-14	I	$4.19	$2.93
LTC2864IS-1#TRPBF	SO-14	I		$2.99
LTC2864IS-2#PBF	SO-14	I	$4.19	$2.93
LTC2864IS-2#TRPBF	SO-14	I		$2.99
LTC2864MPS-1#PBF	SO-14	MP	$10.93	$7.65
LTC2864MPS-1#TRPBF	SO-14	MP		$7.71
LTC2864MPS-2#PBF	SO-14	MP	$10.93	$7.65
LTC2864MPS-2#TRPBF	SO-14	MP		$7.71