Current sense amplifier


TI helps you find the right current sense amplifier products for your system design using a wide variety of commonly used parameters. Current sense amplifiers are special-purpose amplifiers that output a voltage proportional to the current flowing in a power rail. They utilize a current-sense resistor to convert the load current in the power rail to a small voltage, which is then amplified by the current – sense amplifiers.

The currents in the power rail can be in . Current – sense amplifiers (CSAs) monitor current flow through a shunt (sense) resistor and provide closed-loop feedback of system loads.

Current – sense amps are optimized for a wide range of applications, including overcurrent protection and optimization of power monitoring systems. We offer a wide range of current- sense . Its high signal bandwidth allows its use within DC-DC switching converter power-supply control loops with m. These devices accurately amplify small voltages in the presence of large common-mode voltage , and provide high bandwidth, as well as level shifting and bidirectional capability. They utilize a sense resistor to convert the load current in the power rail to a small voltage, which is then amplified by the current sense . Current Sense Amplifiers are available at Mouser Electronics.

This device operates from a single 2. V to 40V supply and typically consumes 12µA.

DC current monitoring is critical. High-side current monitoring is . The SC3is a high-side current sense amplifier ideal for any application where precision current monitoring is needed. V to 25V common mode input range is independent of supply range, providing complete flexibility in battery sensing applications. This article introduces the four differential amplifiers that typically are used in direct current sensing solutions: operational amplifiers (op amps ), difference amplifiers (DA), instrumentation amplifiers (IA), and current shunt monitors (CSM).

Operational amplifiers. Hi, a pretty simple current to voltage current conversion using the Linear Technology Extended Range Current. Abstract—A high-performance sense amplifier for nonvolatile memories capable of working under a very low-voltage power supply is presented. The publication selects products based . The next-generation current sense amplifier features low power consumption and high accuracy for high-end consumer, enterprise computing, communications, and industrial equipment. Maximum ±4µV voltage offset over full temperature range.

V power supply operating range. Electromagnetic interference (EMI) filters Included. High common-mode input voltage range. Independent supply and input common-mode voltages.

Wide common-mode operating range: 2. V in single-supply configuration.

A delay is introduced since the input current has to be converted into a sufficiently large output voltage swing Vout that can be detected by a subsequent voltage sense amplifier. The latter two items are the most important issues in current sensing. It will be shown in Chap.

The measurement voltage typically originates at a current sense resistor, which is located in a “high side” circuit, for example a circuit not directly associated with ground. This monitor IC features a very wide input voltage range, configurable gain, small size, low component count, low power consumption, ease of use, and.


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