LM393GN

Overview

The LM393GN is a dual voltage comparator integrated circuit manufactured by TAEJIN. It features two independent comparators designed for single or split power supply operation, with a wide supply voltage range of 2V to 36V (±1V to ±18V). The device includes an open-collector output compatible with TTL, DTL, ECL, MOS, and CMOS logic families. Key electrical parameters include a maximum input offset voltage of 5mV, a maximum input bias current of 250nA, and a typical output saturation voltage of 80mV at 4mA sink current. It operates within a commercial temperature range of 0°C to 70°C and is available in an 8-SOP surface-mount package.

Feature Summary

• Dual independent low-voltage comparators optimized for single-supply applications
• Open-collector outputs ensuring compatibility with various digital logic families
• Input common-mode voltage range extends to ground potential

Applications

• Voltage monitoring and detection circuits
• Over-voltage and under-voltage protection systems
• Analog-to-digital conversion interface stages

Procurement Notes

Verify the manufacturer designation on the component marking against official TAEJIN documentation to confirm authenticity. Ensure the specific suffix 'GN' corresponds to the required 8-SOP package variant. Cross-reference the datasheet revision date with the procurement order to ensure compliance with current RoHS and REACH regulatory standards.

Selection Notes

Select this component when a dual-channel comparator is required for general-purpose signal conditioning. It is suitable for designs needing rail-to-rail input capability relative to the negative supply. Consider the open-drain output structure when designing pull-up resistor networks for interfacing with different logic voltage levels.

Part Context

The LM393 series represents a standard family of dual comparators widely used in industrial and consumer electronics. The LM393GN specifically denotes the TAEJIN manufacturing variant housed in an 8-pin small outline package. This form factor supports automated surface-mount assembly processes while maintaining performance characteristics consistent with industry-standard equivalents.

Replacement Considerations

LM2903: Industrial temperature grade equivalent. LM193: Military temperature grade equivalent. TLV1701: Low-voltage rail-to-rail alternative.