LM393ADT

Overview

The LM393ADT is a dual low-power voltage comparator manufactured by STMicroelectronics, housed in an 8-SOIC surface-mount package. It features two independent comparators capable of operating from a single supply ranging from 2V to 36V or split supplies of ±1V to ±18V. The device exhibits a typical response time of 1.3μs and supports output compatibility with TTL, DTL, ECL, MOS, and CMOS logic families. Electrical characteristics include a maximum input offset voltage of 2mV at 30V, a maximum input bias current of 0.1µA at 5V, and a typical output sink current of 18mA at 5V. It operates within a temperature range of 0°C to 70°C.

Feature Summary

• Dual-channel architecture providing two independent low-voltage comparators for signal processing applications.
• Wide single-supply or dual-supply operational capability allowing flexibility across various power systems.
• Open-collector output design ensuring compatibility with diverse digital logic families including TTL and CMOS.

Applications

• Over/under voltage monitoring circuits
• Temperature sensing and control systems
• Level detection interfaces

Procurement Notes

Verify the specific suffix 'DT' confirms the SOIC-8 tape-and-reel packaging configuration required for automated assembly processes. Confirm RoHS compliance status aligns with environmental regulations applicable to the target deployment region. Ensure the ordering part number matches the exact manufacturer designation to avoid discrepancies in component specifications or pinout configurations during procurement.

Selection Notes

Select this component when dual comparator functionality is required within a compact surface-mount footprint. It is suitable for designs needing wide supply voltage tolerance and standard logic interface compatibility. Consider thermal dissipation limits and ensure the application environment remains within the specified commercial temperature range for reliable operation.

Part Context

This device belongs to the LM393 family of low-power comparators, which are industry-standard components designed for general-purpose analog signal comparison. The LM393 series is widely utilized in consumer electronics and industrial equipment due to its robust performance and low power consumption characteristics relative to older comparator technologies.

Replacement Considerations

Compatible substitutes include LM393DR and LM393N, provided the package type and electrical parameters match the original design requirements.