36V microPower (175-µA), 250-µV offset, precision instrumentation amplifier
Product details
Parameters
Package | Pins | Size
Features
- Low Quiescent Current: 175 µA/channel
- Wide Supply Range: ±1.35 V to ±18 V
- Low Offset Voltage: 250-µV Maximum
- Low Offset Drift: 3-µV/°C Maximum
- Low Noise: 35 nV/√Hz
- Low Input Bias Current: 25-nA Maximum
- 8-Pin PDIP, SOIC, VSSOP Surface-Mount Dual:
16-Pin PDIP, SOIC, SSOP
Description
The INA126 and INA2126 are precision instrumentation amplifiers for accurate, low noise differential-signal acquisition. Their two-op-amp design provides excellent performance with low quiescent current (175 µA/channel). Combined with a wide operating voltage range of ±1.35 V to ±18 V, makes the INAx126 ideal for portable instrumentation and data acquisition systems.
Gain can be set from 5 V/V to 10000 V/V with a single external resistor. Laser-trimmed input circuitry provides low offset voltage (250-µV maximum), low offset voltage drift (3-µV/°C maximum), and excellent common-mode rejection.
Single version package options include 8-pin plastic PDIP, SOIC-8, and fine-pitch VSSOP-8 surface-mount. Dual version is available in 16-pin plastic PDIP, SOIC-8, and the space-saving, fine-pitch SSOP-16 surface-mount. All are specified for the –40°C to +85°C industrial temperature range.
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | INAx126 MicroPower Instrumentation Amplifier Single and Dual Versions datasheet (Rev. B) | Dec. 31, 2015 |
Technical articles | What is an instrumentation amplifier? | Aug. 09, 2019 | |
Application note | 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 | Mar. 28, 2017 | |
Technical articles | How to layout a PCB for an instrumentation amplifier | Oct. 14, 2016 | |
User guide | Universal Instrumentation Amplifier EVM User’s Guide (Rev. B) | Aug. 09, 2016 | |
Technical articles | Dealing with rejection: Instrumentation amplifier PSRR and CMRR (Part I) | Nov. 25, 2013 | |
Technical articles | What you need to know about CMRR – Instrumentation amplifier topologies (Part 3) | Nov. 06, 2013 | |
User guide | Universal Instrumentation Amplifier EVM User’s Guide | Sep. 11, 2013 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The universal INAEVM (Instrumentation Amplifier Evaluation Module) is available in two package options that simplify prototyping precision instrumentation amplifiers in either the SO-8 (D) package or the MSOP-8(DGK) package with the pinout shown. See the chart below for compatible TI INA’s. Note (...)
Design tools & simulation
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
- (...)
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
- (...)
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
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
PDIP (P) | 8 | View options |
SOIC (D) | 8 | View options |
VSSOP (DGK) | 8 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Support & training
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