26-V, Bi-Directional, Zero-Drift, High-Side, I2C Out Current/Power Monitor - INA219

INA219 (ACTIVE)

26-V, Bi-Directional, Zero-Drift, High-Side, I2C Out Current/Power Monitor

Description

The INA219 is a current shunt and power monitor with an I2C- or SMBUS-compatible interface. The device monitors both shunt voltage drop and bus supply voltage, with programmable conversion times and filtering. A programmable calibration value, combined with an internal multiplier, enables direct readouts of current in amperes. An additional multiplying register calculates power in watts. The I2C- or SMBUS-compatible interface features 16 programmable addresses.

The INA219 is available in two grades: A and B. The B grade version has higher accuracy and higher precision specifications.

The INA219 senses across shunts on buses that can vary from 0 to 26 V. The device uses a single 3- to 5.5-V supply, drawing a maximum of 1 mA of supply current. The INA219 operates from –40°C to 125°C.

Features

  • Senses Bus Voltages from 0 to 26 V
  • Reports Current, Voltage, and Power
  • 16 Programmable Addresses
  • High Accuracy: 0.5% (Maximum) Over
    Temperature (INA219B)
  • Filtering Options
  • Calibration Registers
  • SOT23-8 and SOIC-8 Packages

View more

Parametrics Compare all products in Current Shunt Digital Output

 
Input Offset (+/-) (Max) (uV)
Input Offset Drift (+/-) (Typ) (uV/Degrees Celsius)
Iq (Max) (mA)
Gain (V/V)
Gain Error (%)
Small-Signal Bandwidth (Typ) (MHz)
CMRR (Min) (dB)
Vs (Min) (V)
Vs (Max) (V)
Common Mode Range (Min)
Common Mode Range (Max)
Special Features
Rating
Operating Temperature Range (C)
Approx. Price (US$)
INA219 INA220
50     50    
0.1     0.16    
1     1.0    
1
0.5
0.25
0.125    
1
0.5
0.25
0.125    
0.2     0.2    
0.011     0.011    
120     120    
3     3    
5.5     5.5    
0     0    
26     26    
Bi-directional
Programmable Gain    
Bi-directional
I2C
Low-side Capable
Programmable Gain    
Catalog     Catalog    
-40 to 125     -40 to 125    
0.80 | 1ku     0.99 | 1ku    

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