INA260 (ACTIVE)

High/Low-Side Digital Current/Power Monitor with Integrated 2mΩ Shunt Resistor

 

Description

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.

Features

  • 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

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Parametrics Compare all products in Current Sensing With Integrated Shunt

 
Common Mode Voltage (Max) (V)
Input Offset Current (+/-) (Max) (mA)
Input Offset Current Drift (+/-) (Typ) (µA/°C)
Gain (Typ) (mV/A)
Gain Error (%)
Integrated Shunt Value (Nom) (mΩ)
Integrated Shunt Tolerance (Nom) (%)
Integrated Shunt Temperature Drift (Typ) (PPM/°C)
Continuous Current (Max) (A)
Bandwidth (kHz)
CMRR (Min) (dB)
Supply Voltage (Max) (V)
Supply Voltage (Min) (V)
Iq (Max) (mA)
Features
Rating
Operating Temperature Range (C)
Package Group
Package Size: mm2:W x L (PKG)
Common Mode Voltage (Min) (V)
INA260
36   
5   
50   
1   
0.15   
2   
0.1   
15   
10   
3.5   
130   
5.5   
2.7   
0.42   
Alert Function
Bi-directional
I2C
Integrated Shunt
Low-side Capable   
Catalog   
-40 to 125   
TSSOP   
16TSSOP: 32 mm2: 6.4 x 5(TSSOP)   
0   

INA260 Error Analysis

0.001m ≤ 
 mOhm ≤ 100m
0.0001 ≤ 
A
A ≤ 100 
2.7 ≤ 
V ≤ 5.5
0 ≤ 
V ≤ 36
-40 ≤ 
C ≤ 125