Automotive 36-V Low-/High-Side Bi-Direct Zero-Drift Current Sense Amp w/Precision Int Shunt Resistor - INA250-Q1

INA250-Q1 (ACTIVE)

Automotive 36-V Low-/High-Side Bi-Direct Zero-Drift Current Sense Amp w/Precision Int Shunt Resistor

 

Description

The automotive qualified INA250-Q1 is a voltage-output, current-sensing amplifier family that integrates an internal precision shunt resistor to enable high-accuracy current measurements at common-mode voltages that may vary from 0 V to 36 V, independent of the supply voltage.

The INA250-Q1 family is available in four output voltage scales: 200 mV/A, 500 mV/A, 800 mV/A, and 2 V/A. This device is fully tested and specified for continuous currents up to 10 amps at the maximum temperature of +125°C. The INA250-Q1 device operates from a single 2.7-V to 36-V supply and draws a maximum of 300 µA of supply current. All INA250-Q1 gain versions are specified over the extended operating temperature range of –40°C to +125°C, and are available in a TSSOP-16 package.

Features

  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C5
  • Precision Integrated Shunt Resistor:
    • Shunt Resistor: 2-mΩ
    • Shunt Resistor Tolerance: 0.1% (Maximum)
    • 15 A Continuous from –40°C to +85°C
    • 0°C to +125°C Temperature Coefficient: 10 ppm/°C
  • High Accuracy:
    • Gain Error (Shunt and Amplifier): 0.3% (Maximum)
    • Offset Current: 50 mA (Maximum, INA250A2-Q1)
  • Four Available Gains:
    • INA250A1-Q1: 200 mV/A
    • INA250A2-Q1: 500 mV/A
    • INA250A3-Q1: 800 mV/A
    • INA250A4-Q1: 2 V/A
  • Wide Common-Mode Range: –0.1 V to 36 V
  • Specified Operating Temperature: –40°C to +125°C

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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)
INA250-Q1
36   
50   
25   
200
500
800
2000   
0.3   
2   
0.1   
15   
15   
50   
100   
36   
2.7   
0.35   
Bi-directional
Integrated Shunt
Low-side Capable   
Automotive   
-40 to 125   
TSSOP   
16TSSOP: 32 mm2: 6.4 x 5(TSSOP)   
0   

Other qualified versions of INA250-Q1

Version Part Number Definition
Catalog INA250 TI's standard catalog product