LTC1518CS#TRPBF

Drivers, Receivers, Transceivers Overview

The LTC1518CS#TRPBF is a high-speed, precision delay quad line receiver manufactured by Analog Devices Inc. It supports data rates up to 52Mbps with a guaranteed propagation delay of 18.5ns and a tolerance of -3.5ns over the 0°C to 70°C temperature range. The device operates from a single 5V supply, drawing 12mA of current. It features a wide input common mode range of –7V to 12V, ensuring compatibility with RS485 standards. Key electrical characteristics include a typical channel-to-channel skew of 500ps, an input resistance of at least 22kΩ, and short-circuit protection capable of sustaining indefinite shorts with a maximum output current of 50mA.

Drivers, Receivers, Transceivers Feature Summary

• Precision timing architecture ensures stable propagation delays and low skew across varying temperatures and input conditions.
• Hot Swap capability allows safe insertion and removal without loading active data lines due to high input resistance when unpowered.
• Integrated fail-safe mechanisms guarantee a logic high output state during input faults, such as open circuits or shorts.

Drivers, Receivers, Transceivers Applications

• High-speed RS485/RS422 communication networks
• STS-1/OC-1 optical carrier data receivers
• PECL line receiving applications
• Fast-20/Fast-40 SCSI bus receivers

Drivers, Receivers, Transceivers Procurement Notes

Verify that the ordering suffix #TRPBF corresponds to the tape and reel packaging format required for automated assembly processes. Confirm the 'C' designation indicates the commercial temperature range (0°C to 70°C) rather than the industrial grade. Ensure the component is sourced from authorized distributors to guarantee authenticity and adherence to RoHS compliance standards.

Drivers, Receivers, Transceivers Selection Notes

Select this component when precise signal timing is critical for high-speed differential data transmission. It serves as a direct pin-compatible replacement for the LTC488 and LTC489 series. Consider the 52Mbps maximum data rate and the specific 5V supply requirement when designing the power management section of the circuit.

Drivers, Receivers, Transceivers Part Context

This part belongs to the LTC1518/LTC1519 family of precision delay receivers. The LTC1518 variant provides a unified enable control for all four channels, whereas the LTC1519 offers independent enable controls for pairs of receivers. Both share identical electrical performance specifications regarding speed, delay, and protection features.

Drivers, Receivers, Transceivers Replacement Considerations

The LTC1518CS#TRPBF is pin-compatible with the LTC488CS#PBF and LTC488CS#TRPBF. Designers upgrading from these legacy parts should verify that the improved propagation delay stability meets their system timing margins.

Drivers, Receivers, Transceivers FAQ

How does the device handle hot swapping?

The receiver maintains an input resistance of at least 22kΩ even when unpowered or disabled. This prevents the device from loading the data bus during insertion or removal, enabling safe hot swapping.

What happens if the inputs are left floating?

The integrated fail-safe feature guarantees a logic high output state if the differential inputs are shorted or left open, preventing false triggering caused by noise.

Is short-circuit protection included?

Yes, the device includes voltage sensing short-circuit protection that limits the output current to a maximum of 50mA, allowing it to withstand indefinite short-circuit conditions without damage.