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

Recommended alternative parts

  • INA230  -  Includes programmable ALERT and enhanced POWER calculation
  • INA3221  -  Triple channel voltage and current monitor

Description

The INA219 is a high-side current shunt and power monitor with an I2C interface. The INA219 monitors both shunt drop and supply voltage, with programmable conversion times and filtering. A programmable calibration value, combined with an internal multiplier, enables direct readouts in amperes. An additional multiplying register calculates power in watts. The I2C 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 0V to 26V. The device uses a single +3V to +5.5V supply, drawing a maximum of 1mA of supply current. The INA219 operates from –40°C to +125°C.

Features

  • SENSES BUS VOLTAGES FROM 0V TO +26V
  • REPORTS CURRENT, VOLTAGE, AND POWER
  • 16 PROGRAMMABLE ADDRESSES
  • HIGH ACCURACY: 0.5% (Max) OVER TEMPERATURE (INA219B)
  • FILTERING OPTIONS
  • CALIBRATION REGISTERS
  • SOT23-8 AND SO-8 PACKAGES

View more

Parametrics Compare all products in Current Shunt Monitor 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
I2C    
Bi-directional
Low-side Capable
I2C    
Catalog     Catalog    
-25 to 85
-40 to 125    
-40 to 125    
0.80 | 1ku     0.99 | 1ku    

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