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ACS726

Allegro
Part Number ACS726
Manufacturer Allegro
Description Galvanically Isolated Current Sensor
Published Nov 25, 2019
Detailed Description ACS726 Galvanically Isolated Current Sensor IC with Differential Output and Externally Adjustable Gain FEATURES AND BEN...
Datasheet PDF File ACS726 PDF File

ACS726
ACS726

Overview
ACS726 Galvanically Isolated Current Sensor IC with Differential Output and Externally Adjustable Gain FEATURES AND BENEFITS • Fully differential architecture for improved immunity to offset drift and common mode noise • Spare differential back end amplifier for externally adjustable gain and bandwidth using simple RC networks • Greatly improved bandwidth through proprietary amplifier and filter design techniques • High bandwidth 120 kHz analog output • Patented integrated digital temperature compensation circuitry allows nearly closed-loop accuracy, through entire temperature range, in an open loop sensor • 1.
1 mΩ primary conductor resistance for low power loss and high inrush current withstanding capability • Small footprint, low-profile QSOP24 package suitable for space-constrained applications • Integrated shield virtually eliminates capacitive coupling from current conductor to die due to high dV/dt voltage transients Continued on the next page… Package: 24-pin QSOP (suffix LF) DESCRIPTION The Allegro™ ACS726 current sensor IC family provides economical and precise solutions for AC current sensing in industrial, commercial, and communications systems.
The device package allows for easy implementation by the customer.
Typical applications include motor control, load detection and management, switched-mode power supplies, and overcurrent fault protection.
The fully differential output gives superior immunity to output offset drift as well common mode noise.
ACS726 is the first current sensor IC to include a fully differential back-end amplifier (BEA) that can be used to adjust gain and bandwidth via external RC networks.
The BEA is fully independent and when unused, it can be powered down to reduce power consumption.
The device consists of a precise, low-offset, linear Hall sensor circuit with a copper conduction path located near the surface of the die.
Applied current flowing through this copper conduction path generates a magnetic field which is sensed by th...


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