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    Current Sensing Amplifiers

    Current sensing amplifiers measure current by outputting a voltage that is proportional to the flowing power current. A resistor is used to convert the load current to a small voltage which is then accurately amplified. They offer real-time overcurrent protection.

    What are the different applications of current sensing amplifiers?

    Accurate current sensing is crucial to optimising performance in a range of applications, such as motor control and power management. In devices where battery or power-line monitoring is highly necessary, like laptops and phones, current sensing amplifiers are critical.

    How to choose the right type of current sensing amplifier

    There are several factors that will determine the the type of amplifier you choose, including whether the measurement will be on the high or low side. The sense resistor can be placed either between the supply voltage and load, or between the load and ground. The former is called high-side seinsing, whereas the latter is called low-side sensing. High voltage current sensing amplifiers offer input ranges up to +76V and down to -20V, ideal for applications such as motor control and network routers. Low power current sensing amplifiers help to maximise and extend battery life.

    483 Products showing for Current Sensing Amplifiers

    Each (Supplied in a Tube)
    MYR19.478
    Maxim Integrated
    Single
    4.5 → 76 V
    -
    100dB
    1
    Rail to Rail
    0.19 mA
    Surface Mount
    μMAX
    8
    3.1 x 3.1 x 0.95mm
    0.95mm
    3.1mm
    76 V
    Each (Supplied on a Reel)
    MYR2.907
    onsemi
    Single
    2.2 → 26 V
    -
    105dB
    1
    Rail to Rail
    60 μA
    Surface Mount
    SC-70
    6
    2.2 x 1.35 x 1mm
    1mm
    2.2mm
    26 V
    Each (Supplied on a Reel)
    MYR3.42
    onsemi
    Single
    2.2 → 26 V
    -
    105dB
    1
    Rail to Rail
    60 μA
    Surface Mount
    SC-70
    6
    2.2 x 1.35 x 1mm
    1mm
    2.2mm
    26 V
    Each (In a Pack of 5)
    MYR13.50
    STMicroelectronics
    Single
    2.7 → 5.5 V
    -
    90dB
    1
    Bidirectional
    -
    -
    SO8
    8
    -
    -
    -
    -
    Each (On a Reel of 3000)
    MYR7.695
    STMicroelectronics
    Single
    2.7 → 26 V
    ±26V
    105dB
    1
    Bidirectional
    -
    -
    SC70-6
    6
    -
    -
    -
    -
    Each (On a Reel of 3000)
    MYR7.695
    STMicroelectronics
    Single
    2.7 → 26 V
    ±26V
    105dB
    1
    Bidirectional
    -
    -
    SC70-6
    6
    -
    -
    -
    -
    Each (On a Reel of 3000)
    MYR7.695
    STMicroelectronics
    Single
    2.7 → 26 V
    ±26V
    105dB
    1
    Bidirectional
    -
    -
    SC70-6
    6
    -
    -
    -
    -
    Each (In a Pack of 5)
    MYR12.264
    STMicroelectronics
    Single
    2.7 → 5.5 V
    ±7V
    90dB
    1
    Bidirectional
    -
    -
    MiniSO8
    8
    -
    -
    -
    -
    • RS Stock No. 738-5250
    • Mfr. Part No. ZXCT1082E5TA
    Each (In a Pack of 5)
    MYR8.076
    DiodesZetex
    Single
    2.7 → 60 V
    -
    80dB
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Each (In a Pack of 5)
    MYR8.588
    STMicroelectronics
    Single
    12 V, 15 V, 18 V, 5 V, 9 V
    -
    90dB
    1
    -
    0.3 mA
    Surface Mount
    SOT-23
    5
    3 x 1.75 x 1.3mm
    1.3mm
    3mm
    24 V
    Each (On a Reel of 4000)
    MYR11.485
    STMicroelectronics
    Single
    2.7 V, 5.5 V
    -
    115dB
    1
    Bidirectional
    -
    -
    MiniSO8
    8
    -
    -
    -
    -
    Each (On a Reel of 4000)
    MYR9.684
    STMicroelectronics
    Single
    2.7 → 18
    -
    80dB
    1
    Analogue Voltage
    -
    -
    MiniSO8
    8
    -
    -
    -
    -
    Each (Supplied on a Reel)
    MYR6.631
    STMicroelectronics
    Single
    2.7 → 26 V
    ±26V
    105dB
    1
    Bidirectional
    -
    -
    SC-70
    6
    -
    -
    -
    -
    Each (Supplied on a Reel)
    MYR14.016
    STMicroelectronics
    Dual, Single
    2.9 → 70 V
    -2.1 → 65V
    90dB
    1
    Buffered
    480 μA
    Surface Mount
    TSSOP
    8
    4.5 x 3.1 x 1.05mm
    1.05mm
    4.5mm
    5.5 V
    Each (On a Reel of 3000)
    MYR2.652
    STMicroelectronics
    Single
    2.7 → 26 V
    -
    -
    -
    Voltage
    -
    -
    QFN10
    10
    -
    -
    -
    -
    Each (On a Reel of 3000)
    MYR2.652
    STMicroelectronics
    Single
    2.7 → 26 V
    -
    -
    -
    Voltage
    -
    -
    QFN10
    10
    -
    -
    -
    -
    Each (On a Reel of 250)
    MYR3.91
    Texas Instruments
    Single
    2.7 → 26 V
    -
    120dB
    1
    Voltage
    -
    -
    SC-70
    6
    -
    -
    -
    -
    Each (Supplied on a Reel)
    MYR16.825
    STMicroelectronics
    Single
    2.7 → 18
    -
    80dB
    1
    Analogue Voltage
    -
    -
    SO8
    8
    -
    -
    -
    -
    Each (In a Pack of 5)
    MYR8.522
    STMicroelectronics
    Single
    12 V, 15 V, 18 V, 5 V, 9 V
    -
    90dB
    1
    -
    0.3 mA
    Surface Mount
    SOT-23
    5
    3 x 1.75 x 1.3mm
    1.3mm
    3mm
    24 V
    Each (On a Reel of 2500)
    MYR9.676
    STMicroelectronics
    Single
    2.7 → 5.5 V
    -
    100dB
    -
    Current, Voltage
    -
    -
    SO8
    8
    -
    -
    -
    -
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