LM2415T

Overview

The LM2415T is a monolithic triple CRT driver circuit designed for color monitor applications. It integrates three high input impedance, wide band amplifiers that directly drive the RGB cathodes of a CRT. Each channel features an internally set gain of -14 and operates with a supply current of 13mA. The device provides a propagation delay of 5.5 ns, ensuring precise signal timing for display outputs.

Feature Summary

• Integrates three high input impedance amplifiers for direct RGB cathode driving
• Features internally set gain per channel to simplify circuit design
• Provides fast signal propagation suitable for high-resolution displays

Applications

• Color monitor systems
• CRT display drivers
• Video signal processing circuits

Procurement Notes

Verify the manufacturer origin, as National Semiconductor assets were acquired by Texas Instruments. Confirm the package type matches the required mounting configuration. Ensure the specific suffix indicates the correct variant for the intended application environment. Cross-reference the datasheet revision to confirm electrical characteristics align with system requirements.

Selection Notes

Select this component when a triple-channel driver with fixed gain is required for CRT interfaces. Consider the 5.5 ns propagation delay against system bandwidth needs. Evaluate the 13mA supply current consumption relative to power constraints. Verify compatibility with the target CRT cathode load specifications before integration.

Part Context

This part belongs to the LM24 series of monolithic triple CRT drivers from National Semiconductor. The series includes variants with different propagation delays, such as the LM2408 (4.5 ns) and LM2412 (2.8 ns). The LM2415T represents a mid-range speed option within this family, balancing performance and complexity for standard color monitor designs.

Replacement Considerations

Compatible substitutes include other LM24 series variants like the LM2408 or LM2412, provided the propagation delay differences are acceptable for the specific display timing requirements. Verify pinout compatibility and electrical parameter overlaps before substitution.