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Product Detailed Parameters
- Description：IC COMPARATOR 2 GEN PUR 8DIP
- Series：-
- Mfr：onsemi
- Package：Tube,Tube,Tube
- Type：General Purpose
- Number of Elements：2
- Output Type：Open-Collector, Rail-to-Rail
- Voltage - Supply, Single/Dual (±)：2V ~ 36V, ±1V ~ 18V
- Voltage - Input Offset (Max)：5mV @ 30V
- Current - Input Bias (Max)：0.25µA @ 5V
- Current - Output (Typ)：16mA @ 5V
- Current - Quiescent (Max)：2.5mA
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：-
- Hysteresis：-
- Operating Temperature：0°C ~ 70°C
- Package / Case：8-DIP (0.300", 7.62mm)
- Mounting Type：Through Hole
- Supplier Device Package：8-PDIP
- Grade：-
- Qualification：-
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Overview
The LM393NG is a dual independent precision voltage comparator manufactured by onsemi. It operates from a wide single-supply range of 2.0 Vdc to 36 Vdc or split supplies of ±1.0 Vdc to ±18 Vdc. The device features very low current drain of 0.4 mA, low input bias current of 25 nA, and low input offset voltage with a maximum of 5.0 mV for the LM393 series. Input common mode voltage extends to ground level, and differential input voltage equals the power supply voltage. Output voltage is compatible with DTL, ECL, TTL, MOS, and CMOS logic levels.
Feature Summary
- Dual independent precision voltage comparators capable of single or split supply operation
- Input common mode range includes ground level during single supply operation
- ESD clamps on inputs increase device ruggedness without affecting performance
- Output voltage compatible with DTL, ECL, TTL, MOS, and CMOS logic levels
Applications
- Consumer electronics applications
- Automotive electronics applications
- Industrial electronics applications
Procurement Notes
Verify that the component matches the specific LM393 series designation rather than other variants like LM293 or NCV2903 which have different temperature ranges. Confirm the package suffix 'N' corresponds to the PDIP-8 form factor as specified in the ordering information. Ensure the procurement documentation references the correct datasheet revision (Rev. 17) to align with the electrical characteristics provided.
Selection Notes
Select this component when a dual comparator with low offset voltage is required for consumer, automotive, or industrial circuits. The wide supply voltage range allows flexibility in system design. Consider the open-collector output nature which requires external pull-up resistors for proper logic level interfacing. Verify that the operating temperature range of 0°C to +70°C meets the environmental requirements of the target application.
Part Context
The LM393 is part of a family of low offset voltage dual comparators produced by onsemi. This series includes related devices such as the LM293, LM2903, and NCV2903. These components are designed to provide high gain and wide bandwidth characteristics suitable for various signal conditioning tasks. The LM393 specifically targets general-purpose applications requiring precise voltage comparison within standard commercial temperature limits.
Replacement Considerations
LM293: Industrial grade variant with extended temperature range (-25°C to +85°C). LM2903: Extended temperature range (-40°C to +105°C). NCV2903: Automotive qualified version with extended temperature range (-40°C to +125°C).
