High/Low-Side Digital Current/Power Monitor with Integrated 2mΩ Shunt Resistor - INA260

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)
Special 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   

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INA260 Error Analysis

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