TLV4H290MDYYTSEP

Comparators Overview

The TLV4H290MDYYTSEP is a radiation-tolerant, open-drain precision quad comparator from Texas Instruments. It operates within a supply voltage range of 1.65V to 5.5V and features a maximum input offset voltage of 300µV. The device provides fault-tolerant inputs and achieves a propagation delay of 100ns. It is housed in a plastic 14-pin SOT-23 (DYY) package with thermal pad. The component is qualified for space applications, offering Single Event Latch-up immunity up to 43MeV·cm²/mg at 125°C and Total Ionizing Dose tolerance up to 30krad (Si).

Comparators Feature Summary

• Radiation tolerant design ensuring reliability in harsh environments.
• Precision performance with low input offset voltage characteristics.
• Fault-tolerant inputs providing robust signal handling.

Comparators Applications

• Spacecraft avionics systems
• Satellite payload instrumentation
• High-reliability industrial control

Comparators Procurement Notes

Verify the complete part number including suffixes such as MDYYTSEP to ensure correct packaging and radiation qualification levels. Confirm that the specific revision matches the required TID and SEL ratings for the target mission profile. Cross-reference the datasheet version to validate electrical parameters against current production standards before finalizing procurement orders.

Comparators Selection Notes

Select this component when radiation hardness is mandatory for quad comparator applications. It is suitable for designs requiring low power consumption alongside high precision. Consider the open-drain output configuration for interface compatibility with varying logic levels. Ensure the operating temperature range aligns with the -55°C to 125°C specification provided in the datasheet.

Comparators Part Context

This part belongs to the TLV4H series of radiation-hardened comparators designed for aerospace and defense markets. It shares functional similarities with standard commercial comparators but includes enhanced shielding and layout techniques to mitigate ionizing radiation effects. The family supports various pinout configurations to accommodate different board space constraints while maintaining consistent electrical performance under stress.

Comparators Replacement Considerations

Direct replacements include other Texas Instruments radiation-hardened comparators such as the TLV4H390MDYYTSEP. Verify pin compatibility and electrical specifications before substitution. Non-radiation-hardened equivalents like the LM2904 are not suitable for space environments due to lack of SEL immunity.