Product details

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 Features Cost Optimized, Small Size, Overvoltage Protection 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 Type Resistor Output swing headroom (to negative supply) (Typ) (V) 0.1 Output swing headroom (to positive supply) (Typ) (V) -0.15 Input common mode headroom (to negative supply) (Typ) (V) 0 Input common mode headroom (to positive supply) (Typ) (V) -1 Noise at 0.1 Hz-10 Hz (Typ) (uVpp) 0.52 Gain non-linearity (+/-) (Max) (%) 0.002
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 Features Cost Optimized, Small Size, Overvoltage Protection 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 Type Resistor Output swing headroom (to negative supply) (Typ) (V) 0.1 Output swing headroom (to positive supply) (Typ) (V) -0.15 Input common mode headroom (to negative supply) (Typ) (V) 0 Input common mode headroom (to positive supply) (Typ) (V) -1 Noise at 0.1 Hz-10 Hz (Typ) (uVpp) 0.52 Gain non-linearity (+/-) (Max) (%) 0.002
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
  • 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
  • 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

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.

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

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Type Title Date
* Data sheet INA826 Precision, 200-µA Supply Current, 3-V to 36-V Supply Instrumentation Amplifier With Rail-to-Rail Output datasheet (Rev. G) 25 Jun 2020
Application note How to Select Amplifiers for Pressure Transmitter Applications (Rev. A) 27 Jul 2021
Application note Importance of Input Bias Current Return Paths in Instrumentation Amplifier Apps 27 Jul 2021
Application note Offset Correction Methods: Laser Trim, e-Trim, and Chopper (Rev. C) 13 Apr 2021
Application note Supporting High Voltage Common Mode Using Difference Amplifier 08 Mar 2021
Application note Supporting High Voltage Common Mode Using Instrumentational Amplifier 23 Feb 2021
User guide Universal Instrumentation Amplifier EVM: Alternate Pinout User's Guide 07 Feb 2020
Technical article What is an instrumentation amplifier? 09 Aug 2019
Application note Comprehensive Error Calculation for Instrumentation Amplifiers 26 Mar 2019
Application note Circuit for driving a switched-capacitor SAR ADC w/ a buffered instrument amp (Rev. A) 08 Mar 2019
Application note Circuit for driving a switched-capacitor SAR ADC with an instrumentation amp (Rev. A) 07 Mar 2019
Application note Circuit for driving a high-voltage SAR with an instrumentation amplifier 04 Oct 2018
Application note Simplify Voltage and Current Measurement in Battery Test Equipment 16 Oct 2017
E-book The Signal e-book: A compendium of blog posts on op amp design topics 28 Mar 2017
Selection guide TI Components for Aerospace and Defense Guide (Rev. E) 22 Mar 2017
Technical article How to layout a PCB for an instrumentation amplifier 14 Oct 2016
Application note Analog Applications Journal 3Q 2015 24 Jul 2015
Application note Design tips for a resistive-bridge pressure sensor in industrial process-control 24 Jul 2015
Technical article How Instrumentation Amplifier Vcm vs. Vout plots change with supply and reference voltage 30 Jan 2015
Technical article How to combine error terms 19 Aug 2014
User guide INA826EVM User Guide (Rev. C) 02 Mar 2012
Application note 4Q 2011 Issue Analog Applications Journal 09 Nov 2011
Application note Analog linearization of resistance temperature detectors 09 Nov 2011
User guide INA826EVM User Guide (Rev. B) 28 Oct 2011

Design & development

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

Evaluation board

INA826EVM — INA826 Evaluation Module

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

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Evaluation board

INAEVM-ALT-SO8 — Universal instrumentation amplifier evaluation module with alternate pin-out

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 (...)
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Simulation model

INA826 TINA-TI Reference Design

SBOM471.TSC (201 KB) - TINA-TI Reference Design
Simulation model

INA826 TINA-TI Spice Model

SBOM472.ZIP (9 KB) - TINA-TI Spice Model
Simulation model

INA826 Vcm vs Vout TINA-TI Model

SLOM384.TSC (59 KB) - TINA-TI Reference Design
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 (...)
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 (...)
Calculation tool

ANALOG-ENGINEER-CALC — Analog engineer's calculator

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 (...)
Reference designs

TIDA-00171 — Isolated Current Shunt and Voltage Measurement Reference Design for Motor Drives

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 (...)
Reference designs

TIDA-010065 — High-efficiency, low-emission, isolated DC/DC converter-based analog input module reference design

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 (...)
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TIDA-00548 — 4-20mA Analog Input Module Reference Design for Safety Applications

TIDA-00548 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 (PLCs). This reference design delivers digitized input values using a 32-bit high-performance analog-to-digital converter (ADC). The (...)
Reference designs

TIDA-00209 — Isolated Current Shunt and Voltage Measurement Reference Design for Motor Drives Using AM437x

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 (...)
Reference designs

TIPD164 — Analog Input Module for Industrial Outputs and Temperature Sensors Reference Design

This reference design that is precision verified implements an analog input module for industrial voltages, currents and temperature sensors.  For industrial outputs, the possible input ranges include: 4 to 20 mA, 0 to 20 mA, +/-25 mA, 0 to 5 V, 0 to 10 V, +/-5 V and +/-10 V. The design (...)
Package Pins Download
SOIC (D) 8 View options
SON (DRG) 8 View options
VSSOP (DGK) 8 View options

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