INA126:Micropower Instrumentation Amplifier Single and Dual Versions

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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 ?A/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-?V maximum), low offset voltage drift (3-?V/°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.

  • Low Quiescent Current: 175 ?A/channel
  • Wide Supply Range: ±1.35 V to ±18 V
  • Low Offset Voltage: 250-?V Maximum
  • Low Offset Drift: 3-?V/°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
Number of Channels (#)12
Vs (Min) (V)2.72.7
Vs (Max) (V)3636
CMRR (Min) (dB)8383
Input Offset (+/-) (Max) (uV)250250
Input Offset Drift (+/-) (Max) (uV/C)33
Input Bias Current (+/-) (Max) (nA)2525
Noise at 1kHz (Typ) (nV/rt(Hz))3535
Iq (Typ) (mA)0.1750.175
Bandwidth at Min Gain (Typ) (MHz)0.20.2
Gain (Min) (V/V)55
Gain (Max) (V/V)1000010000
Gain Error (+/-) (Max) (%)0.180.18
Operating Temperature Range (C)-55 to 125-40 to 85
Approx. Price (US$)1.18 | 1ku1.91 | 1ku
Package Size: mm2:W x L (PKG)See datasheet (PDIP)See datasheet (PDIP)
Noise at 0.1 Hz - 10 Hz (Typ) (uVpp)0.70.7
Gain Non-Linearity (+/-) (Max) (%)0.0020.012
TitleTypeSize (KB)Date
INAx126 MicroPower Instrumentation Amplifier Single and Dual Versions (Rev. B)PDF150531 Dec 2015
User guides?(2)
TitleTypeSize (KB)Date
Universal Instrumentation Amplifier EVM User’s Guide (Rev. B)PDF73909 Aug 2016
Universal Instrumentation Amplifier EVM User’s GuidePDF72111 Sep 2013
Selection & solution guides?(2)
TitleTypeSize (KB)Date
Analog Signal Chain Guide (Rev. B)PDF600011 Jul 2013
TI HealthTech Fitness GuidePDF359410 Apr 2013
Design files?(1)
TitleTypeSize (KB)Date
Xilinx MGT Rocket I/O Power SupplyPDF24109 Sep 2009
TitleTypeSize (KB)Date
INA126 PSpice Model (Rev. A)ZIP56?KB30 Sep 2011
INA126 TINA-TI Reference Design (Rev. B)TSC85?KB30 Sep 2011
INA126 TINA-TI Spice Model (Rev. A)ZIP3?KB30 Sep 2011
Design kits & evaluation modules?(1)
Universal Instrumentation Amplifier Evaluation ModuleINAEVMEvaluation Modules & Boards
Development tools?(2)
Calculate Input Common-Mode Range of Instrumentation AmplifiersINA-CMV-CALCCalculation Tools
SPICE-Based Analog Simulation ProgramTINA-TICircuit Design & Simulation
Ordering Information
Part #Preproduction / Production MaterialStatusTemp(oC)Price | QTYPackage | PinsDevice MarkingPackage QTY | Carrier
INA126E/250ProductionACTIVE-55 to 1251.91 | 1kuVSSOP?(DGK)A26250 | SMALL T&R
INA126E/250G4ProductionACTIVE-55 to 1251.91 | 1kuVSSOP?(DGK)A26250 | SMALL T&R
INA126E/2K5ProductionACTIVE1.68 | 1kuVSSOP?(DGK)A262500 | LARGE T&R
INA126E/2K5G4ProductionACTIVE1.68 | 1kuVSSOP?(DGK)A262500 | LARGE T&R
INA126EA/250ProductionACTIVE1.51 | 1kuVSSOP?(DGK)A26250 | SMALL T&R
INA126EA/250G4ProductionACTIVE1.51 | 1kuVSSOP?(DGK)A26250 | SMALL T&R
INA126EA/2K5ProductionACTIVE1.28 | 1kuVSSOP?(DGK)A262500 | LARGE T&R
INA126EA/2K5G4ProductionACTIVE1.28 | 1kuVSSOP?(DGK)A262500 | LARGE T&R
INA126PProductionACTIVE1.74 | 1kuPDIP?(P)INA126P50 | TUBE
INA126PAProductionACTIVE1.40 | 1kuPDIP?(P)INA126P A50 | TUBE
INA126PAG4ProductionACTIVE1.40 | 1kuPDIP?(P)INA126P A50 | TUBE
INA126PG4ProductionACTIVE1.74 | 1kuPDIP?(P)INA126P50 | TUBE
INA126UProductionACTIVE1.85 | 1kuSOIC?(D)INA 126U75 | TUBE
INA126U/2K5ProductionACTIVE1.57 | 1kuSOIC?(D)INA 126U2500 | LARGE T&R
INA126U/2K5G4ProductionACTIVE1.57 | 1kuSOIC?(D)INA 126U2500 | LARGE T&R
INA126UAProductionACTIVE1.46 | 1kuSOIC?(D)INA A 126U75 | TUBE
INA126UA/2K5ProductionACTIVE1.18 | 1kuSOIC?(D)INA 126U A2500 | LARGE T&R
INA126UAG4ProductionACTIVE1.46 | 1kuSOIC?(D)INA A 126U75 | TUBE
INA126UG4ProductionACTIVE1.85 | 1kuSOIC?(D)INA 126U75 | TUBE
INAx126 MicroPower Instrumentation Amplifier Single and Dual Versions INA126
所选封装材料的热学和电学性质 DCP010505B
Universal Instrumentation Amplifier EVM User’s Guide INA118
模拟信号链路产品指南 (Rev. B) BQ24392
TI HealthTech Fitness Guide ADS1298ECGFE-PDK
Xilinx MGT Rocket I/O Power Supply TPS60403
INA126 PSpice Model INA126
INA126 TINA-TI Reference Design INA126
INA126 TINA-TI Spice Model INA126
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