INA321EA The Texas Instruments INA321EA is a micropower instrumentation amplifier offering a wide supply voltage range and high accuracy. It features low quiescent current and rail-to-rail output swing.
Mfr Part #:

INA321EA

Available from 2 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments INA321EA is a micropower instrumentation amplifier offering a wide supply voltage range and high accuracy. It features low quiescent current and rail-to-rail output swing.
Total Stock: 23,792 pcs
$ Price Range: $0.99

INA321EA Available from 2 distributors

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Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
23,789 pcs
23789 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
3 pcs
3 pcs On Request 1 On Request On Request 12+ On Request On Request

INA321EA Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Number of Channels
Operating Temperature
Quiescent Current

INA321EA Description

Short technical summary and product information.

The Texas Instruments INA321EA is a single-channel, micropower instrumentation amplifier designed for cost-optimized applications. It operates from a supply voltage range of 2.5V to 5.5V and features a low quiescent current of 40µA.

 

Key electrical specifications include a low input offset voltage of ±500µV, a wide voltage gain range from 5 to 1000, and a bandwidth of 0.5MHz at minimum gain. The amplifier boasts high gain accuracy of 0.02% and a low input bias current of 10pA. It also offers a high Common Mode Rejection Ratio (CMRR) of 90dB and rail-to-rail output swing.

 

The INA321EA is available in a VSSOP (DGK) 8-pin package with dimensions of 3 mm × 4.9 mm. It operates over a wide temperature range of -55°C to 125°C, making it suitable for various industrial and automotive applications.

 

Applications include industrial sensor amplifiers for bridge, RTD, and thermistor measurements, physiological amplifiers for ECG, EEG, and EMG, A/D converter signal conditioning, and differential line receivers with gain.

INA321EA Quick Information

Product Type: Instrumentation Amplifier
Canonical Name: INA321EA Micropower Instrumentation Amplifier
Subcategory: Instrumentation Amplifiers

INA321EA Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

INA321EA Estimated Pricing

Qty Low High
1+ $0.99 $0.99

Estimated market price range - modelled values for guidance only, not live distributor offers.

INA321EA Features

  • Micropower instrumentation amplifier with 40µA quiescent current.
  • Wide supply voltage range from 2.5V to 5.5V.
  • High gain accuracy of 0.02% at G=5.
  • Low input offset voltage of ±500µV.
  • Rail-to-rail output swing capability.

INA321EA Applications

  • Industrial sensor amplifier applications.
  • Physiological signal amplification.
  • A/D converter signal conditioning.
  • Differential line receivers with gain.

INA321EA FAQs

6 frequently asked questions generated from this part’s specifications.
What is the supply voltage range for the INA321EA?

The supply voltage range is 2.5V to 5.5V.

What is the input offset voltage of the INA321EA?

The maximum input offset voltage is ±500µV.

What is the voltage gain range for the INA321EA?

The voltage gain can be set from 5 to 1000 V/V.

What is the bandwidth of the INA321EA at minimum gain?

The bandwidth at minimum gain is 0.5MHz.

What is the operating temperature range for the INA321EA?

The operating temperature range is -55°C to 125°C.

What package is the INA321EA available in?

The INA321EA is available in a VSSOP (DGK) 8-pin package.

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