LTC1685IS8#PBF

Drivers, Receivers, Transceivers Overview

The LTC1685IS8#PBF is a high-speed, precision delay RS485 transceiver manufactured by Analog Devices Inc. It supports data rates up to 52Mbps and operates from a single 5V supply with a typical current draw of 7mA. The device features a propagation delay of 18.5ns with a tight temperature drift of -3.5ns over the industrial range (-40°C to 85°C). It includes fail-safe receiver operation across a common mode range of -7V to 12V, short-circuit protection, and thermal shutdown. Packaged in an 8-lead plastic SOIC (S8), it is pin-compatible with the LTC485.

Drivers, Receivers, Transceivers Feature Summary

• Precision timing architecture ensures stable propagation delays and low skew across wide temperature and common mode voltage ranges.
• Integrated fail-safe mechanism guarantees a logic high output when inputs are open or shorted within the full common mode range.
• Built-in driver and receiver short-circuit protection along with thermal shutdown circuitry prevent latchup damage during fault conditions.

Drivers, Receivers, Transceivers Applications

• High-speed backplane point-to-point transceivers
• Fast-20 and Fast-40 High Voltage Differential SCSI systems
• STS-1/OC-1 data transmission links

Drivers, Receivers, Transceivers Procurement Notes

Verify that the component matches the specific industrial temperature grade and package variant required for your design. Confirm RoHS compliance status and ensure the supplier provides valid traceability documentation. Check for any specific handling requirements related to electrostatic discharge during storage and assembly processes.

Drivers, Receivers, Transceivers Selection Notes

Select this component when precise timing synchronization is critical for high-speed differential signaling. It is suitable for applications requiring robust fault tolerance on long twisted-pair cables. Ensure the system power supply remains stable at 5V and consider layout constraints to minimize parasitic capacitance for optimal performance.

Drivers, Receivers, Transceivers Part Context

This part belongs to the Linear Technology RS485/RS422 transceiver family, designed for high-speed serial communication. It serves as a direct replacement for legacy parts like the LTC485 while offering superior timing accuracy. The series addresses the need for reliable data integrity in noisy industrial environments and high-frequency digital buses.

Drivers, Receivers, Transceivers Replacement Considerations

LTC1685CS8#PBF