LTC1518IS#TRPBF

Drivers, Receivers, Transceivers Overview

The LTC1518IS#TRPBF is a high-speed, precision delay quad bus/line receiver manufactured by Analog Devices Inc. It operates at data rates up to 65 Mbps and features a guaranteed propagation delay of 18.5 ns with a variation of –3.5 ns over the industrial temperature range of –40°C to +85°C. The device supports a single 5V supply (4.75V to 5.25V) and draws 12 mA of operating current. It provides four receivers in a 16-lead SOIC package with an input common mode range of –7V to 12V. Key electrical characteristics include a typical channel-to-channel skew of 500 ps, 4 kV ESD protection, and three-state output capability.

Drivers, Receivers, Transceivers Feature Summary

• Precision timing architecture ensures stable propagation delays and low skew across wide input common mode and temperature ranges.
• Guaranteed fail-safe operation maintains a high output state when inputs are shorted or left floating within the entire common mode range.
• Hot Swap capable design with high input resistance allows connection to live data lines without loading the bus.
• Integrated short-circuit protection limits output current to prevent latchup damage during fault conditions.

Drivers, Receivers, Transceivers Applications

• High speed RS485/RS422 receivers
• STS-1/OC-1 data receivers
• PECL line receivers
• Level translators
• Fast-20/Fast-40 SCSI receivers

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging for automated assembly. Confirm that the IS variant meets the required industrial temperature specifications. Ensure the ordering documentation matches the exact part number to avoid discrepancies in pinout or performance parameters.

Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring precise timing synchronization between multiple differential lines. The low skew and controlled propagation delay make it suitable for clock retiming and parallel data transmission where duty cycle distortion must be minimized compared to standard line receivers.

Drivers, Receivers, Transceivers Part Context

This component belongs to the LTC1518/LTC1519 family of precision delay RS485 quad line receivers. It is pin-compatible with the older LTC488 and LTC489 series but offers significantly higher data rates and tighter timing control. The IS designation specifies the industrial temperature grade for this specific package configuration.

Drivers, Receivers, Transceivers Replacement Considerations

LTC1519IS#TRPBF

Drivers, Receivers, Transceivers FAQ

How does the device handle unpowered inputs?

The input resistance remains greater than 22kΩ even when the device is unpowered or disabled, allowing for hot swapping without loading the data lines.

What is the maximum recommended data rate for clock retiming?

While the device can propagate signals up to 52 Mbps, the maximum recommended data transmission rate is 25 Mbps when used to retime parallel data to avoid timing errors due to clock distortion.

Does the device oscillate with slow-moving input signals?

No, the architecture is designed such that it will not oscillate with slow-moving input signals.