In summary, by employing the Hall effect, the Allegro ACS710 current sensor IC can sense both AC and DC currents, unlike current transformers. The device is also immune to variations in its primary conductor resistance, whereas resistance variations introduce errors in systems that use sense resistor and op-amp based current sensors. The low profile SOIC16 patented packaging technology offers significant space savings over current transformers in high isolation applications and provides excellent signal coupling and galvanic isolation. The ACS710 has 3000 VRMS galvanic isolation that provides a working voltage of 277 VRMS single protection to the UL1577 standard. An integrated, user selectable, high speed digital fault pin saves components for the user PCB and can be used to protect switching devices in inverter applications. BICMOS technology allows Allegro to design high-frequency, low-noise amplifier stages that provide excellent performance up to 120kHz bandwidth. The fully integrated package and BICMOS technology combine to enable factory programming of the gain and offset of the sensor IC through the operating temperature range. As a result, the ACS710 exhibits superior accuracy over a wide temperature range, making it ideal for use in high accuracy industrial and consumer applications.