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    LM393P Texas Instruments, Dual Comparator, Open Collector O/P, 1.3μs 3 → 28 V 8-Pin PDIP

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    LMx93/LM2903 family Dual Comparators

    The Texas Instruments LM193, LM293, LM393 and LM2903 are dual differential input voltage comparators designed to operate from a single power supply over a wide range of voltages. The common mode input voltage range includes ground and the devices have open collector outputs.

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    Comparators, Texas Instruments

    Texas Instruments’ range of voltage comparators includes not only conventional single, dual and quad comparator packages but also window comparators and over- & under-voltage supervisors.

    Although comparators and operational amplifiers are superficially similar devices their operation in practical applications is very different. Op amps are intended for linear operation accompanied by suitable feedback whereas comparators are tailored for rapid switching and generally operated in open-loop mode. Dedicated voltage comparators have significantly shorter propagation delays and are capable of faster response times under saturated conditions. Most comparators are also more tolerant of high differential input voltages and many have open-collector outputs allowing parallel operation with other devices.


    Comparator TypeGeneral Purpose
    Mounting TypeThrough Hole
    Package TypePDIP
    Power Supply TypeDual, Single
    Output TypeOpen Collector
    Number of Channels per Chip2
    Typical Response Time1.3µs
    Pin Count8
    Typical Single Supply Voltage3 → 28 V
    Dimensions9.81 x 6.35 x 4.57mm
    Typical Voltage Gain106.02 dB
    Minimum Operating Temperature0 °C
    Typical Dual Supply Voltage±12 V, ±15 V, ±3 V, ±5 V, ±9 V
    Maximum Operating Temperature+70 °C