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INA2321 Status: ACTIVE

Micropower single-supply CMOS Instrumentation Amplifier


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 INA2321
Number of Channels2  
Gain(V/V)5 to 1000  
Input Offset (+/-)(Max)(uV)500  
Input Offset Drift (+/-)(Max)(uV/Degrees Celsius)7  
CMRR(Min)(dB)90  
Vs(Min)(V)2.5  
Vs(Max)(V)5.5  
Quiescent Current (+/-)(Typ)(mA)0.04  
Operating Temp Range(Celsius)-55 to 125  
Pin/Package14TSSOP  
 Samples
 Inventory

Customers Who Evaluated This Product Also Evaluated

  • INA330: Thermistor Signal Amplifier for Temperature Control
  • INA333: Low Power, Precision Instrumentation Amplifier
  • INA321: Micropower single-supply CMOS Instrumentation Amplifier
  • SN74LVC2T45: Dual-Bit Dual Supply Transceiver with Configurable Voltage Translation and 3-State Outputs

Product Information

Features

  • LOW QUIESCENT CURRENT: 40µA/channel Shut Down: < 1µA
  • HIGH GAIN ACCURACY: G = 5, 0.02%, 2ppm/°C
  • GAIN SET WITH EXTERNAL RESISTORS
  • LOW OFFSET VOLTAGE: ±200µV
  • HIGH CMRR: 94dB
  • 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

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Description

The INA321 family is a series of rail-to-rail output, micropower CMOS instrumentation amplifiers that offer wide-range, single-supply, as well as bipolar-supply operation. The INA321 family provides low-cost, low-noise amplification of differential signals with micropower current consumption of 40µA. When shutdown, the INA321 has a quiescent current of less than 1µA. Returning to normal operations within nanoseconds, the shutdown feature makes the INA321 optimal for low-power battery or multiplexing applications.

Configured internally for 5V/V gain, the INA321 offers exceptional flexibility with user-programmable external gain resistors. The INA321 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 INA321 ideal for driving sample Analog-to-Digital (A/D) converters as well as general-purpose applications. With high precision, low cost, and small packaging, the INA321 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
INA2321EA/250ACTIVE-55 to 1251.95 | 1kuTSSOP (PW) | 14 View 250 | SMALL T&R Download CAD Format for this Symbol Download CAD Format for this Footprint
INA2321EA/250G4ACTIVE-55 to 1251.95 | 1kuTSSOP (PW) | 14 View 250 | SMALL T&R Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
INA2321EA/2K5ACTIVE 1.75 | 1kuTSSOP (PW) | 14 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
INA2321EA/2K5G4ACTIVE 1.75 | 1kuTSSOP (PW) | 14 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 11:49 AM GMT, 08 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksINA2321EA/250
AsiaWPI 90
TI Lead Time*: 20 WeeksINA2321EA/250G4
None Reported
View Distributors
TI Lead Time*: 20 WeeksINA2321EA/2K5
None Reported
View Distributors
TI Lead Time*: 20 WeeksINA2321EA/2K5G4
None Reported
View Distributors
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
INA2321EA/250 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
INA2321EA/250G4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
INA2321EA/2K5 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
INA2321EA/2K5G4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView

* 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 INA2321 Help

Datasheet

Application Notes

Tools & Software

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

Customers Who Evaluated This Product Also Evaluated...
Part # Name Product Family Comments
INA330 Thermistor Signal Amplifier for Temperature Control AMPLIFIERS AND LINEAR-DIFFERENCE AMPLIFIER TI customers also evaluated this product.
INA333 Low Power, Precision Instrumentation Amplifier INSTRUMENTATION AMPLIFIER-SINGLE SUPPLY TI customers also evaluated this product.
INA321 Micropower single-supply CMOS Instrumentation Amplifier INSTRUMENTATION AMPLIFIER-SINGLE SUPPLY TI customers also evaluated this product.
SN74LVC2T45 Dual-Bit Dual Supply Transceiver with Configurable Voltage Translation and 3-State Outputs VOLTAGE LEVEL TRANSLATION-DUAL SUPPLY TRANSLATORS TI customers also evaluated this product.
INA118 Precision, Low Power Instrumentation Amplifier INSTRUMENTATION AMPLIFIER-SINGLE SUPPLY TI customers also evaluated this product.
INA331 Low-Power, Single Supply, CMOS, Instumentation Amplifier INSTRUMENTATION AMPLIFIER-SINGLE SUPPLY TI customers also evaluated this product.
CC1101 Low-Power Sub-1GHz RF Transceiver Low Power RF ICs-SUB 1-GHZ TI customers also evaluated this product.
INA2331 Low-Power, Single Supply, CMOS, Instumentation Amplifier INSTRUMENTATION AMPLIFIER-SINGLE SUPPLY TI customers also evaluated this product.
TPS65051 6-channel Power Mgmt IC with 2 DC/DCs, 4 LDOs, in 4x4mm QFN POWER MANAGEMENT MULTI-CHANNEL IC (PMIC) SOLUTIONS-PMIC SOLUTIONS WITH AND WITHOUT BATTERY CHARGER TI customers also evaluated this product.
TPS63001 96% Buck-Boost Converter with 1.7A Current Switches, 3.3V fixed Output voltage in 3x3 QFN DC/DC CONVERTERS (INTEGRATED SWITCH)-BUCK-BOOST REGULATORS TI customers also evaluated this product.
SN74HC132 Quadruple Positive-NAND Gates With Schmitt-Trigger Inputs GATES-NAND GATES TI customers also evaluated this product.

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