LM393AQT

Overview

The LM393AQT is a dual voltage comparator manufactured by STMicroelectronics, housed in an 8-UFSON 2x2 package. It operates within a supply voltage range of 2V to 36V single or ±1V to ±18V dual. Key electrical specifications include a maximum input offset voltage of 5mV at 30V and a maximum input bias current of 0.25µA at 5V. The device features an open-collector output capable of sinking up to 18mA at 5V, with a typical quiescent current of 2.5mA. It functions reliably across a temperature range of 0°C to 70°C.

Feature Summary

• Dual-input architecture designed for general-purpose comparison tasks
• Open-collector output stage providing rail-to-rail compatibility
• Optimized for low power consumption in single-supply applications

Applications

• General purpose voltage monitoring circuits
• Threshold detection systems
• Over-voltage protection designs

Procurement Notes

Verify the specific suffix 'AQT' corresponds to the UFSON 2x2 package when sourcing. Confirm RoHS compliance status as per the latest manufacturer documentation. Ensure the ordering quantity matches the available packaging options provided by authorized distributors. Cross-reference the part number with official STMicroelectronics databases to validate authenticity and current production status before finalizing procurement.

Selection Notes

Select this component when a compact footprint is required due to its small UFSON package. Choose it for applications needing dual comparators with low input bias current. Consider it for single-supply systems operating between 2V and 36V. Verify that the open-collector output interface aligns with the downstream logic requirements of the design.

Part Context

This device belongs to the LM393 family of analog comparators from STMicroelectronics. It shares functional similarities with other variants like the LM393DT but differs in physical packaging. The family is known for low power operation and wide supply voltage ranges. This specific model targets space-constrained designs requiring dual independent comparators.

Replacement Considerations

Check for direct pin-compatible substitutes such as the LM393DT or LM393PT if package availability is an issue. Verify that alternative packages maintain the same electrical characteristics and thermal performance. Ensure any replacement supports the required 8-pin configuration and operational voltage range.