High Or Low Side Bi-Directional Current / Power Monitor With Two Wire Interface Ina220aidgsr

FEATURES                                                                          

• HIGH- or LOW-SIDE SENSING

• SENSES BUS VOLTAGES FROM 0V TO +26V

• REPORTS CURRENT, VOLTAGE, AND POWER

• 16 PROGRAMMABLE ADDRESSES

• HIGH ACCURACY: 1% (Max) OVER

  TEMPERATURE

• USER PROGRAMMABLE CALIBRATION

• FAST (3.4MHz) TWO-WIRE MODE

• MSOP-10 PACKAGE

APPLICATIONS

• SERVERS

• TELECOM EQUIPMENT

• NOTEBOOK COMPUTERS

• POWER MANAGEMENT

• BATTERY CHARGERS

• AUTOMOTIVE

• POWER SUPPLIES

• TEST EQUIPMENT

DESCRIPTION

The INA220 is a current shunt and power monitor with an Two-Wire interface. The INA220 monitors both shunt drop and supply voltage. A programmable calibration value, combined with an internal multiplier, enables direct readouts in

amperes. An additional multiplying register

calculates power in watts. The Two-Wire

interface features 16 programmable addresses.

The separate shunt input on the INA220 

allows it to be used in systems with

low-side sensing.                                                                              

                                                                                                                                            INA220 Register Block Diagram