KA319

Overview

The KA319 is a dual analog comparator manufactured by onsemi, designed for precision high-speed applications. It operates within a supply voltage range of 15 V to 36 V and features an open collector output type capable of sourcing 25 mA per channel. The device exhibits a typical response time of 80 ns, with a maximum input offset voltage of 10 mV and an input bias current of 1.2 uA. It consumes 12.5 mA of operating power and supports through-hole installation in a DIP-14 package. The component functions across a temperature range of 0 C to +70 C.

Feature Summary

• Dual independent comparator channels integrated into a single package
• Open collector output stage compatible with TTL logic levels
• High common-mode slew rate for fast signal transitions
• Wide operating voltage range supporting single or split supplies

Applications

• Voltage monitoring circuits requiring precise threshold detection
• Interface between analog sensors and digital logic systems
• Waveform generation and shaping applications
• Over-voltage protection circuitry

Procurement Notes

Verify the specific manufacturer lot code and date code upon receipt to ensure component authenticity. Confirm that the physical package matches the specified DIP-14 configuration and pinout. Check for any mechanical damage to pins before soldering. Ensure storage conditions comply with moisture sensitivity level requirements if applicable. Validate electrical parameters against the official datasheet specifications during incoming inspection.

Selection Notes

Select this component when dual comparators are required in a compact through-hole format. Consider the 80 ns response time for speed-sensitive designs. Evaluate the 25 mA output current capability against load requirements. Verify that the 15 V to 36 V supply range aligns with system power rails. Assess thermal dissipation needs given the 500 mW power rating.

Part Context

The KA319 belongs to the LM319 family of dual high-speed comparators. It shares functional similarities with other industry-standard parts like the LM319N but may differ in specific electrical tolerances and packaging options. This part is distinct from LED displays or gate drivers found in similar search results. It serves as a fundamental building block for analog signal processing tasks.

Replacement Considerations

Public confirmed substitute part numbers include LM319N and LM319M. Verify pin compatibility and electrical parameter equivalence before substitution. Ensure the replacement package type matches the existing PCB footprint.