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Datasheet Linear Technology LT2940IMS#PBF

ManufacturerLinear Technology
Part NumberLT2940IMS#PBF

Power and Current Monitor


  • Download » Datasheet, PDF, 350 Kb, Revision: F
    LT2940 - Power and Current Monitor
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    Power and Current Monitor
    FEATURES n DESCRIPTION Four-Quadrant Power Measurement
    ±5% Power Measurement Accuracy
    4V to 80V High Side Sense, 100V Max
    Current Mode Power and Current Outputs
    Output Bandwidth Exceeds 500kHz
    ±3% Current Measurement Accuracy
    6V to 80V Supply Range, 100V Max
    Inverting and Noninverting Open-Collector
    Comparator Outputs
    Available in 12-Pin DFN (3mm × 3mm) and 12-Lead
    MSOP Packages The LT®2940 measures a high side current and a differential voltage, multiplies them and outputs a current
    proportional to instantaneous power. Bidirectional high
    side currents and bipolar voltage differences are correctly
    handled by the four-quadrant multiplier and push-pull
    output stage, which allows the LT2940 to indicate forward
    and reverse power flow.
    An integrated comparator with inverting and noninverting open-collector outputs makes the LT2940 a complete
    power level monitor. In addition, an output current proportional to the sensed high side current allows current
    monitoring. The current mode outputs make scaling,
    filtering and time integration as simple as selecting external resistors and/or capacitors. APPLICATIONS Board Level Power and Current Monitoring
    Line Card and Server Power Monitoring ...



Package CodeMS


Demo BoardsDC1495A
Design ToolsLTspice Model
Export Controlno yes/no
FeaturesVoltage Monitor, Current Monitor, Power Monitor
I/OComplementary Open Collector Comparator
Isupply3.5 mA
Number of Supplies1
Operating Temperature Range-40 to 85 °C
Vin Range4V to 80V

Eco Plan


Moldel Line

Series: LT2940 (8)

Manufacturer's Classification

  • Monitor, Control and Protection > Power Monitors

Other Names:


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