Texas Instruments INA220
The INA220 is a current shunt and power monitor with an I2C- or SMBUS-compatible interface. The INA220 monitors both shunt drop and supply voltage. The I2C- or SMBUS-compatible interface features 16 programmable addresses.| Part No. | INA220 |
|---|---|
| Datasheet | INA220 Download |
| Manufacturer |  Texas Instruments |
| Description | Bidirectional Current and Power Monitor |
| Buy | Stock & Price |
FEATURES
●1 High- or Low-Side Sensing● Senses Bus Voltages from 0 V to 26 V
● Reports Current, Voltage, and Power
● 16 Programmable Addresses
● High Accuracy: 0.5% (Maximum) Over Temperature (INA220B)
● User-Programmable Calibration
● Fast (2.56-MHz) I2C- or SMBUS-Compatible Interface
● VSSOP-10 Package 2
APPLICATIONS
● Servers● Telecom Equipment
● Notebook Computers
● Power Management
● Battery Chargers
● Automotive
● Power Supplies
● Test Equipment 3
DESCRIPTION
A programmable calibration value, combined with an internal multiplier, enables direct readouts in amperes. An additional multiplying register calculates power in watts. The separate shunt input on the INA220 allows it to be used in systems with low-side sensing. The INA220 is available in two grades: A and B. The B grade version has higher accuracy and higher precision specifications. The INA220 senses across shunts on buses that can vary from 0 to 26 V, useful for low-side sensing or CPU power supplies. The device uses a single 3- to 5.5-V supply, drawing a maximum of 1 mA of supply current.
