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INA322 Status: ACTIVE

Micropower Single-Supply CMOS Instrumentation Amplifier

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Datasheet

Download - PDF Icon
  • microPower Single-Supply CMOS Instrumentation Amplifier (Rev. B) (ina322.pdf, 574 KB)
    09 Feb 2006 Download

 INA2322 INA322
CMRR(Min)(dB)60  60  
Number of Channels2  1  
Pin/Package14TSSOP  8MSOP  
Input Offset (+/-)(Max)(uV)10000  10000  
Input Offset Drift (+/-)(Max)(uV/Degrees Celsius)7  7  
Input Bias Current (+/-)(Max)(nA)0.01  0.01  
Noise at 1kHz(Typ)(nV/rt(Hz))100  100  
Quiescent Current (+/-)(Typ)(mA)0.04  0.04  
Settling Time to 0.01%(Typ)(us)12  12  
Gain(V/V)5 to 1000  5 to 1000  
Input TypeCMOS  CMOS  
Non-Linearity (+/-)(Max)(%)0.01  0.01  
Bandwidth at G=100(Min)(kHz)50  50  
Operating Temp Range(Celsius) -55 to 125  
Vs(Min)(V)2.5  2.5  
Vs(Max)(V)5.5  5.5  
 SamplesSamples
 InventoryInventory

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Product Information

Features

  • LOW COST
  • LOW QUIESCENT CURRENT: 40µA/channel
    Shut Down: < 1µA
  • HIGH GAIN ACCURACY: G = 5, 0.07%, 2ppm/°C
  • GAIN SET WITH EXTERNAL RESISTORS
  • LOW BIAS CURRENT: 10pA
  • BANDWIDTH: 500kHz, G = 5V/V
  • RAIL-TO-RAIL OUTPUT SWING: (V+) - 0.02V
  • WIDE TEMPERATURE RANGE: -55°C to +125°C
  • SINGLE VERSION IN MSOP-8 PACKAGE AND DUAL VERSION IN TSSOP-14 PACKAGE
  • APPLICATIONS
    • INDUSTRIAL SENSOR AMPLIFIERS: Bridge, RTD, Thermistor, Position
    • PHYSIOLOGICAL AMPLIFIERS: ECG, EEG, EMG
    • A/D CONVERTER SIGNAL CONDITIONING
    • DIFFERENTIAL LINE RECEIVERS WITH GAIN
    • FIELD UTILITY METERS
    • PCMCIA CARDS
    • COMMUNICATION SYSTEMS
    • TEST EQUIPMENT
    • AUTOMOTIVE INSTRUMENTATION

Description

The INA322 family is a series of low cost, rail-to-rail output, micropower CMOS instrumentation amplifiers that offer wide-range, single-supply, as well as bipolar-supply operation. The INA322 family provides low-cost, low-noise amplification of differential signals with micropower current consumption of 40µA. When shutdown the INA322 has a quiescent current of less than 1µA. Returning to normal operations within nanoseconds, the shutdown feature makes the INA322 optimal for low-power battery or multiplexing applications.

Configured internally for 5V/V gain, the INA322 offers exceptional flexibility with user-programmable external gain resistors. The INA322 reduces common-mode error over frequency and with CMRR remaining high up to 3kHz, line noise and line harmonics are rejected.

The low-power design does not compromise on bandwidth or slew rate, making the INA322 ideal for driving sampling Analog-to-Digital (A/D) converters as well as general-purpose applications. With high precision, low cost, and small packaging, the INA322 outperforms discrete designs, while offering reliability and performance.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
INA322EA/250ACTIVE-55 to 1251.05 | 1kuMSOP (DGK) | 8 View 250 | SMALL T&R Download CAD Format for this Symbol Download CAD Format for this Footprint
INA322EA/250G4ACTIVE-55 to 1251.05 | 1kuMSOP (DGK) | 8 View 250 | SMALL T&R Download CAD Format for this Symbol Download CAD Format for this Footprint
INA322EA/2K5ACTIVE-55 to 1250.95 | 1kuMSOP (DGK) | 8 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
INA322EA/2K5G4ACTIVE-55 to 1250.95 | 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

  TI Inventory Status Reported Distributor Inventory
INA322EA/250As of 10:03 AM GMT, 09 Jan 2009As of 10:03 AM GMT, 09 Jan 2009
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 6245* >10k | 5 Mar 4 Weeks AmericasArrow 250
  DigiKey >1k
  Newark 99
  AsiaWPI 162
INA322EA/250G4As of 10:03 AM GMT, 09 Jan 2009As of 10:03 AM GMT, 09 Jan 2009
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 6245* >10k | 5 Mar 4 Weeks EuropeEBV Elektronik 125
INA322EA/2K5As of 10:03 AM GMT, 09 Jan 2009As of 10:03 AM GMT, 09 Jan 2009
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* >10k | 23 Feb 20 Weeks None Reported
View Distributors		   
INA322EA/2K5G4As of 10:03 AM GMT, 09 Jan 2009As of 10:03 AM GMT, 09 Jan 2009
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* >10k | 23 Feb 20 Weeks None Reported
View Distributors		   
View all Distributors  

* Our information is updated daily, so please check back with us soon if this does not meet your needs. You may also contact your TI Authorized Distributor , including those listed above, for real time stock information.

** 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
INA322EA/250 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
INA322EA/250G4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
INA322EA/2K5 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
INA322EA/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

Datasheets

  • microPower Single-Supply CMOS Instrumentation Amplifier (Rev. B) (ina322.pdf, 574 KB)
    09 Feb 2006 Download

Application Notes

  • Shelf-Life Evaluation of Lead-Free Component Finishes (szza046.htm, 8 KB)
    24 May 2004 Abstract
  • Thermal and Electrical Properties of Selected Packaging Materials (sbfa010.htm, 8 KB)
    04 Oct 2000 Abstract

Simulation Models

  • Spice Model
    • INA322 TINA Macro Model and Test Circuit (sboc168.zip, 14 KB)
      28 Aug 2006 zip
  • PSpice Model
    • INA322 PSpice Macro Model and Test Circuit  (sboc010.zip, 3 KB)
      11 Jun 2003  zip

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 Output Buffer Amplifier Selection ToolMDACBUFFERPRO Texas Instruments Application Software 

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