Overview
Features and Benefits
- 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 Fail-safe 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
Product Details
The LTC2862/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 latch-up or damage.
Extended ±25V input common mode range and full fail-safe operation improve data communication reliability in electrically noisy environments and in the presence of large ground loop voltages.
| Part Number | Duplex | Enables | Max Data Rate | VL Pin |
| LTC2862-1 | Half | Yes | 20M | No |
| LTC2862-2 | Half | Yes | 250k | No |
| LTC2863-1 | Full | No | 20M | No |
| LTC2863-2 | Full | No | 250k | No |
| LTC2864-1 | Full | Yes | 20M | No |
| LTC2864-2 | Full | Yes | 250k | No |
| LTC2865 | Full | Yes | 20M/250k | Yes |
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
Product Categories
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Documentation & Resources
-
R566 Reliability Data3/23/2018PDF425K
-
Ultra Rugged ±60V RS485 Transceivers3/15/2013PDF282K
-
Digital Isolation and Interface Technology Selection Guide2/7/2020PDF4 M
Tools & Simulations
LTspice
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Models for the following parts are available in LTspice:
LTC2865
IBIS Models
IBS
LTC2865 IBIS Model
246.00K
Reference Designs (1)
Design Resources
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Support & Discussions
LTC2865 Discussions
Sample & Buy
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Buy Now Pricing
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List Pricing
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Lead Times
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Sampling
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