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Product details

Parameters

Number of channels (#) 1 Vs (Max) (V) 36 Vs (Min) (V) 3 Input offset (+/-) (Max) (uV) 150 Gain (Min) (V/V) 1 Gain (Max) (V/V) 1000 Noise at 1 kHz (Typ) (nV/rt (Hz)) 18 CMRR (Min) (dB) 120 Input offset drift (+/-) (Max) (uV/C) 2 Input bias current (+/-) (Max) (nA) 65 Iq (Typ) (mA) 0.2 Bandwidth at min gain (Typ) (MHz) 1 Gain error (+/-) (Max) (%) 0.15 Operating temperature range (C) -40 to 125 Noise at 0.1 Hz-10 Hz (Typ) (uVpp) 0.52 Gain non-linearity (+/-) (Max) (%) 0.0005 open-in-new Find other Instrumentation amplifiers

Package | Pins | Size

SOIC (D) 8 19 mm² 4.9 x 3.9 VSSOP (DGK) 8 15 mm² 3 x 4.9 WSON (DRG) 8 9 mm² 3 x 3 open-in-new Find other Instrumentation amplifiers

Features

  • Input common-mode range: Includes V–
  • Common-mode rejection:
    • 104 dB, min (G = 10)
    • 100 dB, min at 5 kHz (G = 10)
  • Power-supply rejection: 100 dB, min (G = 1)
  • Low offset voltage: 150 µV, max
  • Gain drift: 1 ppm/°C (G = 1), 35 ppm/°C (G > 1)
  • Noise: 18 nV/√Hz, G ≥ 100
  • Bandwidth: 1 MHz (G = 1), 60 kHz (G = 100)
  • Inputs protected up to ±40 V
  • Rail-to-rail output
  • Supply current: 200 µA
  • Supply range:
    • Single supply: 3 V to 36 V
    • Dual supply: ±1.5 V to ±18 V
  • Specified temperature range:
    –40°C to +125°C
  • Packages: 8-pin VSSOP, SOIC, and WSON

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Description

The INA826 is a cost-effective instrumentation amplifier that offers extremely low power consumption and operates over a very wide single-supply or dual-supply range. A single external resistor sets any gain from 1 to 1000. The device offers excellent stability over temperature, even at G > 1, as a result of the low gain drift of only 35 ppm/°C (maximum).

The INA826 is optimized to provide excellent common-mode rejection ratio of over 100 dB (G = 10) over frequencies up to 5 kHz. At G = 1, the common-mode rejection ratio exceeds 84 dB across the full input common-mode range, from the negative supply all the way up to 1 V of the positive supply. Using a rail-to-rail output, the INA826 is a great choice for low-voltage operation from a 3-V single supply, as well as dual supplies up to ±18 V.

Additional circuitry protects the inputs against overvoltage of up to ±40 V beyond the power supplies by limiting the input currents to less than 8 mA.

The INA826 is available in 8-pin SOIC, VSSOP, and tiny 3-mm × 3-mm WSON surface-mount packages. All versions are specified for the –40°C to +125°C temperature range.

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 20
Type Title Date
* Datasheet INA826 Precision, 200-µA Supply Current, 3-V to 36-V Supply Instrumentation Amplifier With Rail-to-Rail Output datasheet (Rev. G) Jun. 25, 2020
User guides Universal Instrumentation Amplifier EVM: Alternate Pinout User's Guide Feb. 07, 2020
Technical articles What is an instrumentation amplifier? Aug. 09, 2019
Application notes Comprehensive Error Calculation for Instrumentation Amplifiers Mar. 26, 2019
Application notes Circuit for driving a switched-capacitor SAR ADC w/ a buffered instrument amp (Rev. A) Mar. 08, 2019
Application notes Circuit for driving a switched-capacitor SAR ADC with an instrumentation amp (Rev. A) Mar. 07, 2019
Application notes Circuit for driving a high-voltage SAR with an instrumentation amplifier Oct. 04, 2018
Application notes Simplify Voltage and Current Measurement in Battery Test Equipment Oct. 16, 2017
Application notes Offset Correction Methods: Laser Trim, e-Trim, and Chopper (Rev. A) Jul. 20, 2017
White papers The Signal e-book: A compendium of blog posts on op amp design topics Mar. 28, 2017
Selection guides TI Components for Aerospace and Defense Guide (Rev. E) Mar. 22, 2017
Technical articles How to layout a PCB for an instrumentation amplifier Oct. 14, 2016
Application notes Analog Applications Journal 3Q 2015 Jul. 24, 2015
Application notes Design tips for a resistive-bridge pressure sensor in industrial process-control Jul. 24, 2015
Technical articles How Instrumentation Amplifier Vcm vs. Vout plots change with supply and reference voltage Jan. 30, 2015
Technical articles How to combine error terms Aug. 19, 2014
User guides INA826EVM User Guide (Rev. C) Mar. 02, 2012
Application notes 4Q 2011 Issue Analog Applications Journal Nov. 09, 2011
Application notes Analog linearization of resistance temperature detectors Nov. 09, 2011
User guides INA826EVM User Guide (Rev. B) Oct. 28, 2011

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
25
Description

The INA826EVM is intended to provide basic functional evaluation of the INA826.

Features
  • Intuitive evaluation with the silkscreen schematic
  • Easy access to nodes with surface-mount test points
  • Advanced evaluation with two prototype areas
  • Reference voltage source flexibility
  • Convenient input and output filtering
EVALUATION BOARDS Download
document-generic User guide
25
Description
The universal INAEVM-ALT-SO8 (instrumentation amplifier evaluation module with alternate pin-out) is available to simplify prototyping precision instrumentation amplifiers in the SO-8 (D) package with the pinout shown.  See the chart below for compatible TI INA devices. Note: These boards are (...)
Features
  • Intuitive evaluation
  • Easy access to nodes with suface-mount test points
  • Reference voltage source flexibility
  • Convenient input and output filtering

Design tools & simulation

SIMULATION MODELS Download
SBOM471.TSC (201 KB) - TINA-TI Reference Design
SIMULATION MODELS Download
SBOM472.ZIP (9 KB) - TINA-TI Spice Model
SIMULATION MODELS Download
SLOM384.TSC (59 KB) - TINA-TI Reference Design
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
  • (...)
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
CALCULATION TOOLS Download
Analog engineer's calculator
ANALOG-ENGINEER-CALC — The Analog Engineer’s Calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting op-amp gain with feedback (...)
Features
  • Expedites circuit design with analog-to-digital converters (ADCs) and digital-to-analog converters (DACs)
    • Noise calculations
    • Common unit translation
  • Solves common amplifier circuit design problems
    • Gain selections using standard resistors
    • Filter configurations
    • Total noise for common amplifier configurations
  • (...)
CALCULATION TOOLS Download
Common-Mode Input Range Calculator for Instrumentation Amplifiers
INA-CMV-CALC The Common-Mode Input Range Calculator is tool for quickly generating plots of an instrumentation amplifier’s common-mode input range vs output. The tool is compatible with both 2-amp and 3-amp instrumentation amplifiers utilizing any supply range.

The Common-Mode Input Range Calculator is pre-loaded (...)

Features
  • Preloaded with 20 of TI’s most popular instrumentation amplifier specifications
  • Customizable supply, gain, and voltage reference options
  • Calculator displays output limitations graphically and numerically

Reference designs

REFERENCE DESIGNS Download
Isolated Current Shunt and Voltage Measurement Reference Design for Motor Drives
TIDA-00171 This evaluation kit and reference design implements the AMC130x reinforced isolated delta-sigma modulators along with integrated Sinc filters in the C2000™ TMS320F28377D Delfino™ microcontroller. The design provides an ability to evaluate the  performance of these measurements: three motor (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
High-efficiency, low-emission, isolated DC/DC converter-based analog input module reference design
TIDA-010065 — This reference design is a simplified architecture for generating an isolated power supply for isolated amplifiers for measuring isolated voltages and currents. A fully integrated DC/DC converter with reinforced isolation operating from a 5-V input with configurable 5-V or 5.4-V output (headroom for (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
4-20mA Analog Input Module Reference Design for Safety Applications
TIDA-00548 — The TIDA-00548 design is an isolated dual-channel 4- to 20-mA analog input reference design, which can be used as a sub-part for functional safety programmable logic controllers (PLC). This reference design delivers digitized input values using a 32-bit high-performance analog-to-digital converter (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Isolated Current Shunt and Voltage Measurement Reference Design for Motor Drives Using AM437x
TIDA-00209 This reference design uses the AMC130x reinforced isolated delta-sigma modulators along with AM437x Sitara™ ARM® Cortex® -A9 Processor, which implements Sinc filters on PRU-ICSS. The design provides an ability to evaluate the performance of these measurements: three motor currents, three (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Analog Input Module for Industrial Outputs and Temperature Sensors Reference Design
TIPD164 This TI Designs, Precision Verified design implements an analog input module for industrial voltages, currents, and temperature sensors.  For industrial outputs, the possible input ranges include: 4-20 mA, 0-20 mA, +/-25 mA, 0-5 V, 0-10 V, +/-5 V, +/-10 V. The design includes conditioning (...)
document-generic Schematic document-generic User guide
Design files

CAD/CAE symbols

Package Pins Download
SOIC (D) 8 View options
SON (DRG) 8 View options
VSSOP (DGK) 8 View options

Ordering & quality

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