LM393ADGKRG4

Overview

The LM393ADGKRG4 is a dual differential analog comparator manufactured by Texas Instruments, belonging to the LM393A series. It features a VSSOP-8 surface-mount package and supports CMOS and TTL output types. The device operates within a supply voltage range of 4 V to 30 V with a typical response time of 1.3 µs. Key electrical specifications include a maximum input offset voltage of 2 mV, an operating supply current of 2.5 mA, and an input bias current of 250 nA. It functions without a shutdown mode across a temperature range of 0°C to +70°C.

Feature Summary

• Dual-channel differential comparison capability in a compact VSSOP-8 package
• Compatibility with both CMOS and TTL logic families for versatile interfacing
• Low input offset voltage specification ensuring precise signal threshold detection

Applications

• Over-voltage protection circuits requiring precise threshold monitoring
• Window detector applications for monitoring signal levels within defined limits
• Temperature sensing interfaces utilizing differential sensor outputs

Procurement Notes

Verify component authenticity through authorized distribution channels due to end-of-life status. Confirm RoHS compliance documentation matches specific manufacturing lot requirements. Ensure packaging integrity for VSSOP-8 components during handling. Validate that the A-grade variant meets strict offset voltage tolerances required for the intended application design.

Selection Notes

Select this component when low input offset voltage is critical for accuracy compared to standard LM393 variants. The VSSOP-8 package offers space efficiency for dense PCB layouts. Consider the 4 V minimum supply constraint against lower voltage alternatives if power budgets are tight. Verify thermal performance within the specified commercial temperature range for the target environment.

Part Context

This part belongs to the LM393A family, distinguished from the standard LM393 by tighter electrical specifications, particularly regarding input offset voltage. The 'DGKR' suffix indicates the VSSOP-8 package type and tape-and-reel packaging format. The 'G4' suffix typically denotes lead-free and RoHS-compliant manufacturing processes consistent with Texas Instruments product coding standards.

Replacement Considerations

LM393DGKR is a non-RoHS equivalent within the same package family. LM393DRG4 serves as a standard grade alternative but differs in package type (SOIC-8) and has higher input offset voltage specifications.