LT1715IMS#TR

Overview

The LT1715IMS#TR is a dual comparator from Analog Devices featuring independent input and output power supplies. It offers a propagation delay of 4ns at 20mV overdrive and a maximum toggle frequency of 150MHz. The device operates with an input supply voltage range of 2.7V to 12V and an output supply range of 2.7V to 6V. It provides rail-to-rail outputs compatible with TTL and CMOS logic levels, with an input voltage range extending 100mV below the negative rail. The component is housed in a 10-lead MSOP package.

Feature Summary

• Features separate power supplies for analog inputs and digital outputs, allowing independent voltage ranges without performance loss.
• Includes internal hysteresis to ensure stable operation with slow-moving or noisy input signals.
• Provides rail-to-rail outputs that directly interface with standard TTL and CMOS logic families.
• Utilizes a pinout optimized for high-speed applications by shielding sensitive inputs from outputs using power rails.

Applications

• High speed differential line receivers
• Level translators
• Window comparators
• Crystal oscillator circuits
• Threshold detectors and discriminators

Procurement Notes

Verify the specific suffix #TR against official documentation to confirm tape and reel packaging requirements. Ensure the IMS designation matches the required 10-lead MSOP package and temperature grade. Cross-reference the manufacturer part number with authorized distributors to confirm current availability status and lead times before finalizing procurement plans.

Selection Notes

Select this component when independent supply voltages are required to isolate input common-mode ranges from output logic levels. Consider the 4ns propagation delay and 150MHz toggle frequency for high-speed signal processing. Evaluate the internal hysteresis specifications to determine if additional external feedback is unnecessary for the target application environment.

Part Context

This device belongs to the UltraFast comparator family from Analog Devices, designed for low-voltage operation. It shares architectural similarities with the LT1720/LT1721 dual/quad comparators and the LT1719 single comparator. The LT1715 distinguishes itself through its ability to maintain performance across separate input and output supply domains within a compact surface-mount package.

Replacement Considerations

Consult official documentation for direct substitutes. Potential alternatives include the LT1715HMS#TRPBF for extended temperature ranges or the LT1715CMS#TRPBF for commercial grades. Verify pin compatibility and electrical specifications before substitution.