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    Comparators

    A Comparator is a circuit that accepts two voltages or currents and then switches the output showing which of the two is bigger. Comparators are found in components such as analogue to digital converters (ADCs). Comparators are like operational amplifiers except a comparator is designed specifically to operate with positive feedback and output saturated at one power rail or the other.

    How a Comparator works

    A comparator samples two input pins and turns on the output when identifying either a difference or similarity. An example is when you have a minus voltage on the inverting Pin and a plus non-inverting. When the voltage on the non-inverting equals the inverting voltage the Pin turns on. Normally the output Pin is open and switches to ground when the comparator is activated.

    Why use a Comparator?

    The primary use of a comparator is converting analogue to digital (ADC). Two supply voltages are applied and the difference determines a high or low digital signal.

    Types of Comparator

    • Current sense
    • Differential / Dual differential
    • Dual / Dual CMOS
    • Dual voltage / General voltage
    • General-purpose
    • Ground sense
    • High speed / high-speed CMOS
    • Low current CMOS
    • Low power / low voltage / low-power CMOS
    • Micropower
    • Nano power
    • Precision
    • Push/pull output
    • Quad differential
    • Rail to rail
    • Voltage
    • Window

    Mounting Types

    Comparators can be found in both surface mount and through-hole mounting configurations to enable use in a wide variety of applications.

    Comparator power supply types

    Available in both single and dual power supply configurations, a comparator can easily be implemented into a robust solution.

    Various package types, pins, sizes, channels per chip, PSRR (power supply rejection ratio), CMRR (common-mode rejection ratio) are all available.

    922 Products showing for Comparators

    Each (In a Pack of 10)
    MYR4.152
    Texas Instruments
    General Purpose
    Surface Mount
    SOIC
    Dual, Single
    Open Collector
    2
    1.3µs
    8
    3 → 28 V
    4.9 x 3.91 x 1.58mm
    4.9mm
    3.91mm
    1.58mm
    -
    • RS Stock No. 536-1372
    • Mfr. Part No. LM392M/NOPB
    Each
    MYR5.62
    Texas Instruments
    Low Power
    Surface Mount
    SOIC
    -
    -
    -
    -
    8
    -
    4.9 x 3.9 x 1.45mm
    4.9mm
    3.9mm
    1.45mm
    -
    Each
    MYR6.04
    Texas Instruments
    General Purpose
    Surface Mount
    SOIC
    Dual, Single
    Open Collector
    1
    0.2µs
    8
    9 → 28 V
    4.9 x 3.9 x 1.45mm
    4.9mm
    3.9mm
    1.45mm
    -
    Each (In a Pack of 10)
    MYR1.196
    Toshiba
    General Purpose
    Surface Mount
    SSOP
    Dual, Single
    Open Collector
    1
    1.3µs
    5
    3 → 28 V
    2.9 x 1.6 x 1.1mm
    2.9mm
    1.6mm
    1.1mm
    -
    Each (In a Pack of 25)
    MYR0.58
    Texas Instruments
    General Purpose
    Surface Mount
    SOIC
    Dual, Single
    Open Collector
    2
    1.3µs
    8
    3 → 28 V
    4.9 x 3.91 x 1.58mm
    4.9mm
    3.91mm
    1.58mm
    -
    Each
    MYR2.26
    Texas Instruments
    Differential
    Through Hole
    PDIP
    Dual, Single
    Open Collector
    2
    1.3µs
    8
    3 → 28 V
    9.81 x 6.35 x 4.57mm
    9.81mm
    6.35mm
    4.57mm
    -
    Each
    MYR10.32
    Texas Instruments
    Low Power
    Surface Mount
    MSOP
    Single
    Push-Pull
    2
    -
    8
    3 V
    3 x 3 x 0.86mm
    3mm
    3mm
    0.86mm
    100dB
    Each (In a Pack of 5)
    MYR2.104
    onsemi
    General Purpose
    Surface Mount
    SOIC
    Dual, Single
    Open Collector
    2
    1.5µs
    8
    3 → 28 V
    5 x 4 x 1.5mm
    5mm
    4mm
    1.5mm
    -
    Each (In a Pack of 10)
    MYR3.202
    onsemi
    Low Power
    Surface Mount
    SOT-23
    Single
    Complementary
    1
    16ns
    5
    0.85 → 6 V
    3 x 1.5 x 1mm
    3mm
    1.5mm
    1mm
    65dB
    Each (In a Tube of 100)
    MYR2.083
    Nisshinbo Micro Devices
    General Purpose
    Surface Mount
    DMP
    Dual, Single
    Open Collector
    2
    1.5µs
    8
    3 → 28 V
    5 x 5 x 1.6mm
    5mm
    5mm
    1.6mm
    -
    • RS Stock No. 534-2999
    • Mfr. Part No. LM392N/NOPB
    Each
    MYR8.79
    Texas Instruments
    Low Power
    Through Hole
    MDIP
    -
    -
    -
    -
    8
    -
    9.27 x 6.35 x 3.3mm
    9.27mm
    6.35mm
    3.3mm
    -
    Each (In a Pack of 5)
    MYR4.988
    Texas Instruments
    General Purpose
    Surface Mount
    SOIC
    Dual, Single
    Open Drain
    2
    0.65µs
    8
    5 → 15 V
    4.9 x 3.91 x 1.58mm
    4.9mm
    3.91mm
    1.58mm
    -
    Each
    MYR2.79
    Texas Instruments
    General Purpose
    Through Hole
    PDIP
    Dual, Single
    Open Collector/Emitter
    1
    0.165µs
    8
    5 → 28 V
    9.81 x 6.35 x 4.57mm
    9.81mm
    6.35mm
    4.57mm
    -
    Each (In a Pack of 10)
    MYR2.645
    Texas Instruments
    Dual
    Through Hole
    PDIP
    Dual, Single
    Single Ended
    1
    1.3µs
    8
    2 → 36 V
    10.16 x 6.6 x 4.57mm
    10.16mm
    6.6mm
    4.57mm
    -
    Each (In a Pack of 5)
    MYR14.25
    Texas Instruments
    High Speed
    Surface Mount
    SOIC
    Single
    Push-Pull
    1
    -
    8
    3 V, 5 V
    4.9 x 3.91 x 1.58mm
    4.9mm
    3.91mm
    1.58mm
    70dB
    Each (In a Pack of 10)
    MYR1.892
    Toshiba
    General Purpose
    Surface Mount
    SSOP
    Dual
    Open Collector
    2
    1.3µs
    8
    -
    2.9 x 2.8 x 1.1mm
    2.9mm
    2.8mm
    1.1mm
    -
    Each (In a Pack of 10)
    MYR2.404
    Microchip
    Low Power
    Through Hole
    PDIP
    Single
    Push-Pull
    1
    -
    8
    3 V, 5 V
    9.27 x 6.35 x 3.3mm
    9.27mm
    6.35mm
    3.3mm
    70dB
    Each (In a Pack of 10)
    MYR2.784
    Microchip
    Low Power
    Surface Mount
    MSOP
    Single
    Push-Pull
    2
    -
    8
    3 V, 5 V
    3 x 3 x 0.85mm
    3mm
    3mm
    0.85mm
    70dB
    Each
    MYR29.25
    Texas Instruments
    General Purpose
    Surface Mount
    SOIC
    Single
    Push-Pull
    2
    -
    8
    3 V, 5 V
    4.9 x 3.91 x 1.58mm
    4.9mm
    3.91mm
    1.58mm
    70dB
    Each
    MYR10.98
    Texas Instruments
    Low Power
    Surface Mount
    SOIC
    Single
    Open Drain
    2
    -
    8
    5 V
    4.9 x 3.91 x 1.58mm
    4.9mm
    3.91mm
    1.58mm
    84dB
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