LM319AMX/NOPB

Overview

The LM319AMX/NOPB is a high-speed dual analog comparator manufactured by Texas Instruments. It features two independent comparison channels housed in a 14-pin SOIC surface-mount package. The device operates with a single supply voltage ranging from 5V to 36V or dual supplies of ±2.5V to ±18V. Key electrical parameters include a typical response time of 80ns, an input bias current of 1μA, and an input offset voltage of 8mV. The output stage utilizes an open-collector configuration capable of sourcing up to 25mA, ensuring compatibility with various logic families.

Feature Summary

• High-speed signal processing with rapid switching capabilities for precise timing applications
• Open-collector output design allowing flexible interfacing with diverse logic levels
• Wide power supply range supporting both single and dual voltage configurations

Applications

• Fast A/D converter interface circuits
• Waveform generation and shaping systems
• Level detection and threshold monitoring

Procurement Notes

Verify the specific suffix 'AMX' against official datasheets to confirm the exact temperature grade and tape-and-reel packaging variant. Ensure the component matches the required operating temperature range for the target application environment. Cross-reference the manufacturer part number with authorized distributors to confirm authenticity and traceability before procurement.

Selection Notes

Select this component when fast propagation delay is critical compared to standard operational amplifiers. The open-collector output simplifies driving external loads like relays or LEDs without additional buffer stages. Consider the SOIC-14 package constraints for PCB layout and thermal management requirements within the commercial temperature range.

Part Context

This device belongs to the LM319 series of general-purpose analog comparators. It is designed for applications requiring faster response times than standard op-amps can provide. The series includes variants with different packages and temperature ratings, all sharing the core high-speed dual comparator architecture optimized for digital interfacing tasks.

Replacement Considerations

Check for direct pin-compatible substitutes such as the LM319N/NOPB for through-hole applications or other LM319 family members. Verify that alternative parts maintain the same 80ns response time and 36V maximum supply voltage specifications.