LM393DG4

Overview

The LM393DG4 is a dual differential analog comparator manufactured by Texas Instruments, housed in an SOIC-8 surface-mount package. It operates within a supply voltage range of 2 V to 30 V and draws a typical operating current of 2.5 mA. The device features a response time of 1.3 µs, an input offset voltage of 5 mV, and an input bias current of 50 nA. Designed for commercial temperatures between 0°C and +70°C, it provides CMOS and TTL compatible outputs.

Feature Summary

• Dual-channel differential comparison architecture
• CMOS and TTL output compatibility
• Wide single-supply voltage operation

Applications

• General-purpose analog signal comparison
• Commercial temperature monitoring circuits
• Low-voltage power supply regulation

Procurement Notes

Verify the specific datasheet revision and RoHS compliance status directly with Texas Instruments or authorized distributors before procurement. Confirm that the SOIC-8 package dimensions match the target PCB footprint requirements. Ensure the component meets the required industrial temperature specifications for the intended application environment.

Selection Notes

Select this component when a dual comparator with wide supply voltage tolerance is required. It is suitable for designs needing CMOS or TTL interface compatibility without additional level shifting. Consider the 1.3 µs propagation delay for timing-sensitive applications and verify that the 5 mV offset voltage meets the precision requirements of the circuit design.

Part Context

This part belongs to the LM393 series of dual comparators from Texas Instruments. It shares functional similarities with other variants like the LM393DRG3 but differs in packaging and manufacturing lot specifics. The DG4 suffix indicates a specific tape-and-reel or tube configuration variant within the standard LM393 family line.

Replacement Considerations

LM393DRG3 is a documented alternative offering identical electrical characteristics in a similar SOIC-8 package format.