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INA326 Status: ACTIVE

Precision, Low Drift, CMOS Instrumentation Amplifier


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 INA326
CMRR(Min)(dB)100  
Number of Channels1  
Pin/Package8MSOP  
Input Offset (+/-)(Max)(uV)100  
Input Offset Drift (+/-)(Max)(uV/Degrees Celsius)0.4  
Input Bias Current (+/-)(Max)(nA)2  
Noise at 1kHz(Typ)(nV/rt(Hz))33  
Quiescent Current (+/-)(Typ)(mA)2.4  
Settling Time to 0.01%(Typ)(us)160  
Gain(V/V)0.1 to 10000  
Input TypeCMOS  
Non-Linearity (+/-)(Max)(%)0.01  
Bandwidth at G=100(Min)(kHz)1  
Operating Temp Range(Celsius)-40 to 85  
Vs(Min)(V)2.7  
Vs(Max)(V)5.5  
 Samples
 Inventory

Customers Who Evaluated This Product Also Evaluated

  • INA333: Low Power, Precision Instrumentation Amplifier
  • INA118: Precision, Low Power Instrumentation Amplifier
  • INA321: Micropower single-supply CMOS Instrumentation Amplifier
  • INA128: Precision, Low Power Instrumentation Amplifiers
  • INA126: Micropower Instrumentation Amplifier Single and Dual Versions
  • INA121: FET-Input, Low Power Instrumentation Amplifier

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Product Information

Features

  • PRECISION
       LOW OFFSET: 100 µV (max)
       LOW OFFSET DRIFT: 0.4 µV/°C (max)
       EXCELLENT LONG-TERM STABILITY
       VERY-LOW 1/f NOISE
  • TRUE RAIL-TO-RAIL I/O
       INPUT COMMON-MODE RANGE:
          20mV Below Negative Rail to 100mV Above Positive Rail
       WIDE OUTPUT SWING: Within 10mV of Rails
       SUPPLY RANGE: Single +2.7V to +5.5V
  • SMALL SIZE
       microPACKAGE: MSOP-8, MSOP-10
  • LOW COST
  • APPLICATIONS
    • LOW-LEVEL TRANSDUCER AMPLIFIER FOR BRIDGES, LOAD CELLS, THERMOCOUPLES
    • WIDE DYNAMIC RANGE SENSOR MEASUREMENTS
    • HIGH-RESOLUTION TEST SYSTEMS
    • WEIGH SCALES
    • MULTI-CHANNEL DATA ACQUISITION SYSTEMS
    • MEDICAL INSTRUMENTATION
    • GENERAL-PURPOSE

Description

The INA326 and INA327 (with shutdown) are high-performance, low-cost, precision instrumentation amplifiers with rail-to-rail input and output. They are true single-supply instrumentation amplifiers with very low DC errors and input common-mode ranges that extends beyond the positive and negative rails. These features make them suitable for applications ranging from general-purpose to high-accuracy.

Excellent long-term stability and very low 1/f noise assure low offset voltage and drift throughout the life of the product.

The INA326 (without shutdown) comes in the MSOP-8 package. The INA327 (with shutdown) is offered in an MSOP-10. Both are specified over the industrial temperature range, –40°C to +85°C, with operation from –40°C to +125°C.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
INA326EA/250ACTIVE-40 to 852.15 | 1kuMSOP (DGK) | 8 View 250 | SMALL T&R Download CAD Format for this Symbol Download CAD Format for this Footprint
INA326EA/250G4ACTIVE-40 to 852.15 | 1kuMSOP (DGK) | 8 View 250 | SMALL T&R Download CAD Format for this Symbol Download CAD Format for this Footprint
INA326EA/2K5ACTIVE-40 to 851.95 | 1kuMSOP (DGK) | 8 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
INA326EA/2K5G4ACTIVE-40 to 851.95 | 1kuMSOP (DGK) | 8 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples

* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.

Inventory

Reported Distributor Inventory as of 11:47 AM GMT, 06 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksINA326EA/250
AmericasArrow >1k
Rochester Electronics 250
AsiaFarnell Asia 27
WPI 272
EuropeCompel 631
WorldwideDigiKey  Available
Mouser Electronics 247
TI Lead Time*: 20 WeeksINA326EA/250G4
AsiaFarnell Asia >1k
EuropeFarnell 748
WorldwideDigiKey  Available
Mouser Electronics 154
TI Lead Time*: 4 WeeksINA326EA/2K5
AmericasNewark >1k
AsiaFarnell Asia >1k
WorldwideDigiKey >1k
TI Lead Time*: 4 WeeksINA326EA/2K5G4
EuropeEBV Elektronik >1k
WorldwideDigiKey  Available
View all Distributors  

** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.

Quality & Lead (Pb)-Free Data

 Product ContentDPPM / MTBF / FIT Rate
DeviceEco Plan* Lead / Ball FinishMSL Rating / Peak ReflowDetailsDetails
INA326EA/250 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
INA326EA/250G4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
INA326EA/2K5 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
INA326EA/2K5G4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView

* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.

If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.

Technical Documents

Most useful technical documents for INA326 Help

Datasheet

Application Notes

Tools & Software

NamePart # Company Tool / Software Type
Calculate Input Common-Mode Range of Instrumentation AmplifiersINA-CMV-CALCTexas InstrumentsCalculation Utilities
SPICE-Based Analog Simulation ProgramTINA-TITexas InstrumentsSimulators
MDACBufferPro(TM) Output Buffer Amplifier Selection ToolMDACBUFFERPRO Texas Instruments Application Software 

Simulation Models

Part # Name Product Family Comments
INA327   Precision, Low Drift, CMOS Instrumentation Amplifier with Shutdown   INSTRUMENTATION AMPLIFIER - SINGLE SUPPLY   The INA327 has shutdown and package MSOP-10  
INA321   Micropower single-supply CMOS Instrumentation Amplifier   INSTRUMENTATION AMPLIFIER - SINGLE SUPPLY   500µV VOS, 0.5pA IB, 94dB CMRR, 60µA IQ, rail-to-rail output  
INA337   Wide-Temperature, Precision Instrumentation Amplifier   INSTRUMENTATION AMPLIFIER - SINGLE SUPPLY   Precision, 0.4µV/°C drift, specified –40°C to +125°C  
INA122   Single Supply, MicroPower Instrumentation Amplifier   INSTRUMENTATION AMPLIFIER - SINGLE SUPPLY   250µV VOS, 10nA IB, 85µA IQ, rail-to-rail output, 3µV/°C drift  
OPA333   1.8V, 17uA, 2uV, microPOWER CMOS Zero-Drift Series Operational Amplifier   PRECISION AMPLIFIER - LOW OFFSET VOLTAGE      
OPA336   Single-Supply, MicroPower CMOS Operational Amplifiers MicroAmplifier(TM) Series   PRECISION AMPLIFIER - LOW OFFSET VOLTAGE   Can be used for both low-side and high-seed current shunt monitor
See Literature sbos222d    
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