Product details

Number of channels 1 Vs (max) (V) 36 Vs (min) (V) 3 Input offset (±) (max) (µV) 150 Voltage gain (min) (V/V) 1 Voltage gain (max) (V/V) 1000 Noise at 1 kHz (typ) (nV√Hz) 18 Features Cost Optimized, Overvoltage protection, Small Size CMRR (min) (dB) 120 Input offset drift (±) (max) (µV/°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 Rating Catalog Type Resistor Gain nonlinearity (±) (max) (%) 0.002 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 to 10 Hz (typ) (µVPP) 0.52
Number of channels 1 Vs (max) (V) 36 Vs (min) (V) 3 Input offset (±) (max) (µV) 150 Voltage gain (min) (V/V) 1 Voltage gain (max) (V/V) 1000 Noise at 1 kHz (typ) (nV√Hz) 18 Features Cost Optimized, Overvoltage protection, Small Size CMRR (min) (dB) 120 Input offset drift (±) (max) (µV/°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 Rating Catalog Type Resistor Gain nonlinearity (±) (max) (%) 0.002 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 to 10 Hz (typ) (µVPP) 0.52
SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm) VSSOP (DGK) 8 14.7 mm² (3 mm × 4.9 mm) WSON (DRG) 8 9 mm² (3 mm × 3 mm)
  • 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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* Data sheet INA826 Precision, 200-µA Supply Current, 3-V to 36-V Supply Instrumentation Amplifier With Rail-to-Rail Output datasheet (Rev. G) PDF | HTML Jun 25, 2020
Application brief Offset Correction Methods: Laser Trim, e-Trim, and Chopper (Rev. D) PDF | HTML Dec 5, 2024
Circuit design Circuit for driving a switched-capacitor SAR ADC w/ a buffered instrument amp (Rev. B) PDF | HTML Sep 24, 2024
Circuit design Circuit for driving a high-voltage SAR with an instrumentation amplifier (Rev. A) PDF | HTML Sep 18, 2024
Circuit design Circuit for driving a switched-capacitor SAR ADC with an instrumentation amp (Rev. B) PDF | HTML Sep 17, 2024
Application brief How to Select Amplifiers for Pressure Transmitter Applications (Rev. B) PDF | HTML Feb 14, 2023
Application note Cost-Optimized, High-Performance Front-End Design for Analog Input Modules PDF | HTML Jun 22, 2022
Application brief Simplify Voltage and Current Measurement in Battery Test Equipment (Rev. A) PDF | HTML Mar 10, 2022
Application note Importance of Input Bias Current Return Paths in Instrumentation Amplifier Apps PDF | HTML Jul 27, 2021
Application brief Supporting High Voltage Common Mode Using Difference Amplifier PDF | HTML Mar 8, 2021
Application brief Supporting High Voltage Common Mode Using Instrumentational Amplifier PDF | HTML Feb 23, 2021
User guide Universal Instrumentation Amplifier EVM: Alternate Pinout User's Guide Feb 7, 2020
Application brief Comprehensive Error Calculation for Instrumentation Amplifiers Mar 26, 2019
E-book The Signal e-book: A compendium of blog posts on op amp design topics PDF | HTML Mar 28, 2017
Analog design Journal Analog Applications Journal 3Q 2015 Jul 24, 2015
Analog design Journal Design tips for a resistive-bridge pressure sensor in industrial process-control Jul 24, 2015
Analog design Journal 4Q 2011 Issue Analog Applications Journal Nov 9, 2011
Analog design Journal Analog linearization of resistance temperature detectors Nov 9, 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.

User guide: PDF
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Evaluation board

INAEVM-ALT-SO8 — Evaluation module for instrumentation amplifiers with alternate pinout in SO-8 (D) package

The INAEVM-ALT-SO8 is an instrumentation amplifier evaluation module (EVM) with alternate pinout and is used to simplify prototyping precision instrumentation amplifiers in the SO-8 (D) package with the pinout shown in the user’s guide. The EVM is an unpopulated board, so instrumentation (...)

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Simulation model

INA826 PSpice Model

SBOMC48.ZIP (63 KB) - PSpice model
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Simulation model

INA826 TINA-TI Reference Design

SBOM471.TSC (201 KB) - TINA-TI reference design
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Simulation model

INA826 TINA-TI Spice Model

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

INA826 Vcm vs Vout TINA-TI Model

SLOM384.TSC (59 KB) - TINA-TI reference design
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Calculation tool

ANALOG-ENGINEER-CALC — PC software 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 operational-amplifier (...)

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Reference design

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 (...)

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Reference design

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 (...)

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Reference design

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). (...)
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Reference design

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 (...)
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Reference design

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 (...)

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Package Pins CAD symbols, footprints & 3D models
SOIC (D) 8 Ultra Librarian
VSSOP (DGK) 8 Ultra Librarian
WSON (DRG) 8 Ultra Librarian

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