MAX44284 36V, Input Common-Mode, High-Precision, Low-Power Current-Sense Amplifier General Description The MAX44284 is a high-side, current-sense amplifier that operates with a 1.7V to 5.5V single supply and is optimized for very low power operation with only 21µA of quiescent current. ...
Keywords:currentsenseIC,highside,currentsense,amplifier,unidirectional,bi-directional,bidirectional, overcurrentprotection,shortcircuitprotection,currentsenseresistor,currentsource,fuelgauges,fuel gages,batterychargingcurrent TUTORIAL746 High-SideCurrent-SenseMeasurement:Circuits ...
a sensor may have the capability to produce a voltage or current corresponding to a particular physical quantity it sense but it may not have the power to drive circuitry it is connected to. In such situations a buffer can be used. A buffer when connected between the sensor and the succeedi...
A precision amplifier measures the voltage across the 0.1 ohm, 1% sense resistor. Since the amplifier maximum input difference is ±320mV this means it can measure up to ±3.2 Amps. With the internal 12 bit ADC, the resolution at ±3.2A range is 0.8mA. With the internal gain set at the...
cancelled by applying a single-pole low-pass filter to the sense signal. This can be as simple as an R-C filter across the sense resistor, or it could be implemented in the operational amplifier feedback loop. The filter should be chosen such that the time c...
Datasheet, Fritzing, and EagleCAD PCB files available in the product tutorial 0.1 ohm 1% 2W current sense resistor Up to +26V target voltage Up to ±3.2A current measurement, with ±0.8mA resolution Note: The terminal block included with your product may be blue or black. You may get an...
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9.2.1Brief Tutorial on the Telegrapher's Equations To begin the examination of the electrical characteristics of signal interconnects, an understanding of transmission line characteristics is a basic requirement. This section provides the derivation of the telegrapher's equations that will be used as th...
A Current Sensing Tutorial Parts I-IV. Available: http://www.eetimes.com/design/industrial-control 3. PGA281EVM User's Guide (SBOU130). Available: http://www.ti.com/lit/ug/sbou130/sbou130.pdf 18 10µA-100mA, 0.05% Error, High-Side Current Sensing Solution TIDU033-September ...
To sense current within a wide frequency range, the OPA320 was chosen for its bandwidth and low offset voltage. Datasheet specifications that benefit the design are listed in Table 2. As shown, the OPA320 has a maximum offset voltage of 150 µV and a unity-gain bandwidth of 20MHz. ...