LTC6754HUD#PBF

Overview

The LTC6754HUD#PBF is a high-speed rail-to-rail input comparator with LVDS-compatible outputs manufactured by Analog Devices Inc. It operates on a supply voltage range of 2.4V to 5.25V and features a propagation delay of 1.8ns typical, with an overdrive dispersion of 1ns. The device supports a toggle rate up to 890Mbps and includes a shutdown pin that reduces power consumption significantly while allowing a wake-up time of 120ns. It utilizes a 12-lead QFN package and offers adjustable hysteresis and output latching capabilities.

Feature Summary

• High-speed operation with low propagation delay and minimal overdrive dispersion for timing-critical applications
• Rail-to-rail inputs extend beyond both supply rails, accommodating wide common-mode ranges
• LVDS compatible differential output stage designed for driving standard 100Ω loads
• Integrated shutdown mode for reduced power consumption and fast wake-up capability

Applications

• Clock and data recovery circuits
• Level translation between different logic domains
• High-speed data acquisition systems
• Time domain reflectometry and time of flight measurements
• High-speed line receivers and cable drivers

Procurement Notes

Verify the specific temperature grade 'H' indicates an operating range from -40°C to +125°C when ordering. Confirm the QFN package type matches the required PCB footprint. Ensure the datasheet version aligns with the manufacturing lot for accurate electrical characteristics. Check for RoHS compliance status as indicated in the ordering information section.

Selection Notes

Select this component for designs requiring precise timing with minimal dispersion effects. Consider the separate VCCI and VCCO supply pins if isolation between input and output stages is necessary. Evaluate the need for the LE/HYST pin functionality if adjustable hysteresis or output latching is required for signal integrity. Ensure the supply voltage constraints fit within the 2.4V to 5.25V operational window.

Part Context

This part belongs to the LTC6754 family of high-speed comparators. The 'HUD' suffix denotes the 12-lead plastic QFN package variant with an extended industrial temperature range. Other family members include SC70 packages and lower temperature grade options. The device is designed for applications demanding high toggle rates and low jitter performance.

Replacement Considerations

LTC6754IUD#PBF serves as a functional substitute with the same package but a restricted temperature range of -40°C to 85°C. Verify thermal requirements before substitution. No other direct pin-compatible replacements are documented in the provided source material.