INA260 36V, Bi-Dir, High Accuracy, Low-/High-Side, I2C Current/Pwr Monitor w/Integrated 2mΩ Shunt Resistor |


36V, Bi-Dir, High Accuracy, Low-/High-Side, I2C Current/Pwr Monitor w/Integrated 2mΩ Shunt Resistor



The INA260 is a digital-output, current, power, and voltage monitor with an I2C and SMBus™-compatible interface with an integrated precision shunt resistor. It enables high-accuracy current and power measurements and over-current detection at common-mode voltages that can vary from 0 V to 36 V, independent of the supply voltage. The device is a bidirectional, low- or high-side, current-shunt monitor that measures current flowing through the internal current-sensing resistor. The integration of the precision current-sensing resistor provides calibration-equivalent measurement accuracy with ultra-low temperature drift performance and ensures that an optimized Kelvin layout for the sensing resistor is always obtained.

The INA260 features up to 16 programmable addresses on the I2C-compatible interface. The digital interface allows programmable alert thresholds, analog-to-digital converter (ADC) conversion times, and averaging. To facilitate ease of use, an internal multiplier enables direct readouts of current in amperes and power in watts.

The device operates from a single 2.7-V to 5.5-V supply, drawing 310 µA (typical) of supply current. The INA260 is specified over the operating temperature range between –40°C and +125°C and is available in the 16-pin TSSOP package.


  • Precision Integrated Shunt Resistor:
    • Current Sense Resistance: 2 mΩ
    • Tolerance Equivalent to 0.1%
    • 15-A Continuous From –40°C to +85°C
    • 10 ppm/°C Temperature Coefficient (0°C to +125°C )
  • Senses Bus Voltages From 0 V to 36 V
  • High-Side or Low-Side Sensing
  • Reports Current, Voltage, and Power
  • High Accuracy:
    • 0.15% System Gain Error (Maximum)
    • 5-mA Offset (Maximum)
  • Configurable Averaging Options
  • 16 Programmable Addresses
  • Operates From a 2.7-V to 5.5-V Power Supply
  • 16-Pin, TSSOP Package

INA260 Error Analysis

0.001m ≤ 
 mOhm ≤ 100m
0.0001 ≤ 
A ≤ 100 
2.7 ≤ 
V ≤ 36
0 ≤ 
V ≤ 36
-40 ≤ 
C ≤ 125


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Part number Order Common mode voltage (Max) (V) Common mode voltage (Min) (V) Input offset (+/-) (Max) (uV) Input offset drift (+/-) (Typ) (uV/C) Gain (V/V) Gain error (%) Gain error drift (+/-) (Max) (ppm/°C) CMRR (Min) (dB) Bandwidth (kHz) Supply voltage (Max) (V) Supply voltage (Min) (V) Iq (Max) (mA) Digital interface Features Rating Operating temperature range (C) Package Group Package size: mm2:W x L (PKG)
INA260 Order now 36     0     5mA     1     1     0.15     35     126     3.5     5.5     2.7     0.42     I2C
Alert Function
Integrated Shunt
Low-side Capable    
Catalog     -40 to 125     TSSOP | 16     16TSSOP: 22 mm2: 4.4 x 5 (TSSOP | 16)