Home Amplifiers Current sense amplifiers Current sense amplifiers analog output

INA250-Q1

ACTIVE
Order now

AEC-Q100, 36V, bi-directional, precision current sense amplifier w/int. shunt resistor

Data sheet
Top
AEC-Q100, 36V, bi-directional, precision current sense amplifier w/int. shunt resistor

INA250-Q1

ACTIVE
Data sheet Order now

Product details

Parameters

Common mode voltage (Max) (V) 36 Common mode voltage (Min) (V) 0 Input offset (+/-) (Max) (uV) 100mA, 50mA, 30mA, 20mA Input offset drift (+/-) (Typ) (uV/C) 250uA/C Gain (V/V) 2000mV/A, 200mV/A, 500mV/A, 800mV/A Gain error (%) 0.3 Gain error drift (+/-) (Max) (ppm/°C) 45 CMRR (Min) (dB) 100 Bandwidth (kHz) 50 Supply voltage (Max) (V) 36 Supply voltage (Min) (V) 2.7 Iq (Max) (mA) 0.35 Number of channels (#) 1 Comparators (#) 0 Features Bi-directional, Integrated Shunt, Low-side Capable Rating Automotive TI functional safety category Functional Safety-Capable Operating temperature range (C) -40 to 125 open-in-new Find other Current sense amplifiers analog output

Package | Pins | Size

TSSOP (PW) 16 22 mm² 5 x 4.4 open-in-new Find other Current sense amplifiers analog output

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
  • Functional Safety-Capable
  • 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

All trademarks are the property of their respective owners.

open-in-new Find other Current sense amplifiers analog output

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.

 open-in-new Find other Current sense amplifiers analog output
Download

Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 12
Type Title Date
* Datasheet INA250-Q1, Automotive 36-V, Low- or High-Side, Bidirectional, Zero-Drift Current-Shunt Monitor With Precision Integrated Shunt Resistor datasheet (Rev. B) Apr. 24, 2020
Application notes INA250-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA Mar. 23, 2020
Application notes Precision, Low-Side Current Measurement (Rev. B) Mar. 06, 2019
Technical articles A key to accurate system thermal management: monitoring both current flow and temperature Oct. 04, 2018
Application notes Integrating a Current Sense Resistor With a Current Sense Amplifier (Rev. B) Jul. 20, 2018
Application notes Benefits of Intergated Low Inductive Shunt for PWM Applications Jun. 17, 2017
Technical articles System trade-offs for high- and low-side current measurements Jun. 01, 2017
Technical articles Why should you care about overcurrent protection in your system? Jun. 16, 2016
User guides INA250EVM User Guide (Rev. A) Dec. 03, 2015
User guides 30-A Range Bidirectional Current Shunt Monitor Design Guide Jun. 30, 2015
Technical articles How to get started with current sense amplifiers – part 2 May 26, 2015
User guides INA250EVM User Guide Mar. 12, 2015

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARDS Download
document-generic User guide
49
Description

INA250 is a family of current shunt monitor with integrated shunt. The INA250EVM (INA250AxEVM) is intended to provide basic functional evaluation of INA250A1, INA250A2, INA250A3 and INA250A4 devices in the family. The fixture layout is not intended to be a model for the target circuit, nor is it (...)

Features
  • INA250EVM consists of one PCB with an option to cut out four individual PCBs one for each of the four devices (INA250A1, INA250A2, INA250A3 and INA250A4).
  • Ease of access to all device pins.
  • Optional input filter.
  • Banana jack terminals on IN+ and IN- pins for ease of connection.

 

View details

Design tools & simulation

SIMULATION MODELS Download
SBOM963.ZIP (33 KB) - TINA-TI Spice Model
SIMULATION MODELS Download
SBOM964.TSC (612 KB) - TINA-TI Reference Design
SIMULATION MODELS Download
SBOMBC3.ZIP (24 KB) - PSpice Model
SIMULATION MODELS Download
SBOMBC7.ZIP (23 KB) - PSpice Model
SIMULATION MODELS Download
SBOMBF5.ZIP (24 KB) - PSpice Model
SIMULATION MODELS Download
SBOMBF7.ZIP (24 KB) - PSpice Model
SIMULATION TOOLS Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
View details
SIMULATION TOOLS Download
SPICE-based analog simulation program
TINA-TI — TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
document-generic User guide

Reference designs

REFERENCE DESIGNS Download
30A Range Bidirectional Current Shunt Monitor Reference Design
TIDA-00614 — This verified design can accurately measure current across a range of 30 A on a bus that carries up to 36-V common mode voltage over a range of -40°C to +85°C.  This design can measure current from 0 A to 30 A with a grounded reference or -30 A to 0 A with a 16-V reference.  The (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
TSSOP (PW) 16 View options

Ordering & quality

Support & training

TI E2E™ forums with technical support from TI engineers

View all topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Training series

View all TI training and videos

Videos

Related videos