Home Amplifiers Current-sense amplifiers Analog current-sense amplifiers
Home
Amplifiers
Current-sense amplifiers
Analog current-sense amplifiers

INA284-Q1

ACTIVE

AEC-Q100, -14 to 80V, bi-directional current sense amplifier

Order now
Data sheet

INA284-Q1

ACTIVE
Data sheet Order now

Product details

Product type Analog output Common-mode voltage (max) (V) 80 Common-mode voltage (min) (V) -14 Input offset (±) (max) (µV) 70 Input offset drift (±) (typ) (µV/°C) 0.3 Voltage gain (V/V) 500 CMRR (min) (dB) 120 Bandwidth (kHz) 4 Supply voltage (max) (V) 18 Supply voltage (min) (V) 2.7 Iq (max) (mA) 0.9 Number of channels 1 Comparators (#) 0 Gain error (%) 1.6 Gain error drift (±) (max) (ppm/°C) 50 Slew rate (V/µs) 0.2 Features Bi-directional, Low-side Capable Rating Automotive TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 125
Product type Analog output Common-mode voltage (max) (V) 80 Common-mode voltage (min) (V) -14 Input offset (±) (max) (µV) 70 Input offset drift (±) (typ) (µV/°C) 0.3 Voltage gain (V/V) 500 CMRR (min) (dB) 120 Bandwidth (kHz) 4 Supply voltage (max) (V) 18 Supply voltage (min) (V) 2.7 Iq (max) (mA) 0.9 Number of channels 1 Comparators (#) 0 Gain error (%) 1.6 Gain error drift (±) (max) (ppm/°C) 50 Slew rate (V/µs) 0.2 Features Bi-directional, Low-side Capable Rating Automotive TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 125
SOIC (D) 8 29.4 mm² 4.9 x 6 VSSOP (DGK) 8 14.7 mm² 3 x 4.9
  • 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 H2
    • Device CDM ESD Classification Level C5
  • Functional Safety-Capable
  • Wide Common-Mode Range: –14 V to +80 V
  • Offset Voltage: ±20 µV
  • CMRR: 140 dB
  • Accuracy:
    • ±1.4% Gain Error (Maximum)
    • 0.3 µV/°C Offset Drift
    • 0.005%/°C Gain Drift (Maximum)
  • Available Gains:
    • 50 V/V: INA282-Q1
    • 100 V/V: INA286-Q1
    • 200 V/V: INA283-Q1
    • 500 V/V: INA284-Q1
    • 1000 V/V: INA285-Q1
  • Quiescent Current: 900 µA (Maximum)
  • 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 H2
    • Device CDM ESD Classification Level C5
  • Functional Safety-Capable
  • Wide Common-Mode Range: –14 V to +80 V
  • Offset Voltage: ±20 µV
  • CMRR: 140 dB
  • Accuracy:
    • ±1.4% Gain Error (Maximum)
    • 0.3 µV/°C Offset Drift
    • 0.005%/°C Gain Drift (Maximum)
  • Available Gains:
    • 50 V/V: INA282-Q1
    • 100 V/V: INA286-Q1
    • 200 V/V: INA283-Q1
    • 500 V/V: INA284-Q1
    • 1000 V/V: INA285-Q1
  • Quiescent Current: 900 µA (Maximum)

The INA28x-Q1 family includes the INA282-Q1, INA283-Q1, INA284-Q1, INA285-Q1, and INA286-Q1 devices. These devices are voltage output current shunt monitors that can sense drops across shunts at common-mode voltages from –14 V to +80 V, independent of the supply voltage. The low offset of the zero-drift architecture enables current sensing with maximum drops across the shunt as low as 10 mV full-scale.

These current sense amplifiers operate from a single 2.7-V to 18-V supply, drawing a maximum of 900 µA of supply current. These devices are specified over the extended operating temperature range of –40°C to +125°C, and offered in SOIC-8 and VSSOP-8 packages.

 

The INA28x-Q1 family includes the INA282-Q1, INA283-Q1, INA284-Q1, INA285-Q1, and INA286-Q1 devices. These devices are voltage output current shunt monitors that can sense drops across shunts at common-mode voltages from –14 V to +80 V, independent of the supply voltage. The low offset of the zero-drift architecture enables current sensing with maximum drops across the shunt as low as 10 mV full-scale.

These current sense amplifiers operate from a single 2.7-V to 18-V supply, drawing a maximum of 900 µA of supply current. These devices are specified over the extended operating temperature range of –40°C to +125°C, and offered in SOIC-8 and VSSOP-8 packages.

 
open-in-new Find other Analog current-sense amplifiers
Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare alternates
Same functionality with different pin-out to the compared device
INA240-Q1 ACTIVE AEC-Q100, -4 to 80V, bi-directional, ultra-precise current sense amplifier w/ enhanced pwm rejection This product offers better Vos, gain error, and temperature drift parameters

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 8
Type Title Date
* Data sheet INA28x-Q1 Automotive Grade, –14-V to +80-V, Bidirectional, High Accuracy, Low- or High-Side, Voltage Output, Current Shunt Monitor datasheet (Rev. C) PDF | HTML 08 Jan 2021
Application note Current Mode Control in Switching Power Supplies (Rev. E) PDF | HTML 12 Apr 2023
Application note Low-Drift, Precision, In-Line Motor Current Measurements With PWM Rejection (Rev. D) PDF | HTML 07 Apr 2023
Application note Using a PCB Copper Trace as a Current-Sense Shunt Resistor PDF | HTML 25 Jan 2022
Functional safety information INA28x-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA (Rev. A) 19 Nov 2020
Application note Precision LED Brightness and Color Mixing With Discrete Current Sense Amplifiers 28 Feb 2017
Design guide EMC Compliant High-Side Current Sensing With Overvoltage Protection Design Guide 13 Feb 2014
EVM User's guide INA282-286EVM User's Guide 23 Sep 2010

Design & development

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

Evaluation board

INA282-286EVM — INA282-286 Evaluation Module

The INA282-286EVM is intended to provide basic functional evaluation of this device family. The fixture layout is not intended to be a model for the target circuit, nor is it laid out for electromagnetic compatibility (EMC) testing. The INA282-286EVM allows the user to install a shunt resistor, (...)

User guide: PDF
Not available on TI.com
Simulation model

INA284 PSpice Model (Rev. B)

SBOM781B.ZIP (951 KB) - PSpice Model
Download
Simulation model

INA284 TINA-TI Reference Design

SBOM783.TSC (159 KB) - TINA-TI Reference Design
Download
Simulation model

INA284 TINA-TI Spice Model

SBOM782.ZIP (15 KB) - TINA-TI Spice Model
Download
Calculation tool

CS-AMPLIFIER-ERROR-TOOL — Current sense amplifier comparison and error tool

This Excel calculator provides a comparison between two and five of our standard current sense amplifiers, delivering a chart containing the basic parameters of each device. This calculator also takes system condition inputs from users such as common-mode voltage, supply voltage, shunt resistor (...)
Download
Design tool

CIRCUIT060035 — Bidirectional current sensing with a window comparator circuit

This bidirectional current sensing solution uses a current-sense amplifier and a high-speed dual comparator with a rail-to-rail input common mode range to create over-current (OC) alert signals at the comparator outputs (OUTA and OUTB) if the input current (IG1) rises above 100 A or falls below (...)
View options
Design tool

CIRCUIT060037 — Precision over-current latch circuit

This high-side, current sensing solution uses a current sense amplifier, a comparator with an integrated reference and a P-channel MOSFET to create an over-current latch circuit. When a load current greater than 200 mA is detected, the circuit disconnects the system from its power source. The (...)
View options
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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 (...)
Request
Simulation tool

TINA-TI — SPICE-based analog simulation program

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 (...)
User guide: PDF
View options
Reference designs

TIDA-00302 — Current Shunt Monitor with Transient Robustness Reference Design

This high-side current shunt monitor is used to measure the voltage developed across a current-sensing resistor when current passes through it.

Additionally, an external protection circuit is implemented to provide surge and fast-transient protection and demonstrate the different immunity levels to (...)

Design guide: PDF
Schematic: PDF
Reference designs

TIDA-00126 — EMC Compliant High Side Current Sensing Reference Design with Overvoltage Protection

This reference design focuses on high-side current measurement using a family of TI's voltage output current shunt monitors. It can be used for measuring high-side current in industrial applications, where the common-mode dynamics can drop below ground. Overall the design helps designers build (...)
Design guide: PDF
Schematic: PDF
Package Pins Download
SOIC (D) 8 View options
VSSOP (DGK) 8 View options
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum 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. ​​​​​​​​​​​​​​

Videos