LTC6752IUD-3#TRPBF

Overview

The Analog Devices LTC6752IUD-3#TRPBF is a single-channel, very high-speed analog comparator housed in a 12-lead, 3mm × 3mm plastic QFN package. It features rail-to-rail inputs and CMOS outputs with separate input and output supply options. The device supports toggle rates up to 280MHz and exhibits a typical propagation delay of 2.9ns with fast rise/fall times of 1.2ns. It operates from an input supply range of 2.45V to 5.25V and an output supply range down to 1.71V, allowing direct interfacing with 1.8V logic. The specified temperature range for the 'I' grade is –40°C to +85°C.

Feature Summary

• Rail-to-rail inputs extend beyond both supply rails for flexible signal handling
• CMOS outputs provide high current capability of ±22mA for direct logic driving
• Separate input and output supply options enable compatibility with lower voltage logic levels
• Integrated shutdown pin allows for reduced power consumption when inactive

Applications

• Clock and data recovery circuits
• High-speed line receivers
• Time of flight measurements
• Fast crystal oscillators

Procurement Notes

Verify that the specific ordering suffix #TRPBF corresponds to the tape and reel packaging format required for automated assembly processes. Confirm that the 'I' temperature grade meets the operational environmental requirements of the target application, as it differs from the extended 'H' grade specifications. Ensure the 12-lead QFN footprint matches the PCB design constraints.

Selection Notes

Select this component when critical timing applications require low propagation delay dispersion alongside high toggle rates. The separate supply architecture is advantageous for level shifting between different voltage domains. Consider the integrated shutdown feature if power management during idle states is a system priority compared to single-supply alternatives.

Part Context

This part belongs to the LTC6752 family of comparators, which includes variants with latching, adjustable hysteresis, and complementary outputs. The IUD-3 designation specifically identifies the 12-lead QFN package with separate supplies and shutdown functionality. It serves as a direct replacement for the ADCMP60X family in existing designs requiring similar performance characteristics.

Replacement Considerations

LTC6752HUD-3#TRPBF