LM392DRG4

Overview

The LM392DRG4 is a dual-channel analog comparator and low-power operational amplifier manufactured by Texas Instruments. It operates within a single supply voltage range of 3 V to 32 V, with a typical operating supply current of 1 mA. The device features a response time of 1.3 µs and an input offset voltage of 5 mV. It provides a maximum output current of 40 mA per channel and supports CMOS and TTL output types. The component is housed in an SOIC-8 surface-mount package and functions reliably across a temperature range of 0°C to +70°C.

Feature Summary

• Integrates a precision voltage comparator and a low-power operational amplifier into a single dual-channel package for space-constrained designs.
• Supports wide single-supply operation from 3 V to 32 V, enabling direct interfacing with various logic families including CMOS and TTL outputs.
• Delivers high output drive capability with up to 40 mA sink current per channel, suitable for driving relays or indicator loads directly.

Applications

• Battery-powered systems requiring low quiescent current consumption
• Industrial control circuits utilizing single-supply logic interfaces
• Over-voltage and under-voltage detection protection circuits

Procurement Notes

Verify the specific suffix DRG4 against the target bill of materials to ensure compatibility with RoHS directives and lead-free manufacturing requirements. Confirm that the SOIC-8 package dimensions align with the PCB footprint design. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and traceability before finalizing procurement orders.

Selection Notes

Select this component when a combined op-amp and comparator solution is required to minimize board space and component count. It is appropriate for applications needing moderate speed (1.3 µs response) and high output drive capability without external buffering. Ensure the operating voltage remains within the 3 V to 32 V range and that the ambient temperature stays within the specified commercial grade limits.

Part Context

The LM392 series combines a general-purpose operational amplifier with a dual voltage comparator. This integration allows designers to implement complex signal conditioning and threshold detection functions using fewer components compared to discrete solutions. The device is part of Texas Instruments' established line of mixed-signal analog integrated circuits designed for cost-effective and reliable performance in consumer and industrial electronics.

Replacement Considerations

The LM392DR is a compatible alternative from the same family. Verify pinout compatibility and electrical parameter tolerances before substitution.