INA321EA/250 The Texas Instruments INA321EA/250 is a micropower instrumentation amplifier offering high accuracy and low offset voltage. It operates from a 2.5V to 5.5V supply.
Mfr Part #:

INA321EA/250

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments INA321EA/250 is a micropower instrumentation amplifier offering high accuracy and low offset voltage. It operates from a 2.5V to 5.5V supply.
✓ Total Stock: 3,822 pcs
$ Price Range: $1.75

INA321EA/250 Available from 1 distributor

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✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
3,822 pcs
3822 pcs On Request 1 On Request On Request 12+ On Request On Request

INA321EA/250 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Industrial Grade
SVHC Present

INA321EA/250 Description

Short technical summary and product information.

The Texas Instruments INA321EA/250 is a single-supply, CMOS instrumentation amplifier designed for micropower applications. It features a low quiescent current of 40µA and a shutdown mode that consumes less than 1µA.

 

Key electrical specifications include a wide supply voltage range from 2.5V to 5.5V, a low input offset voltage of ±500µV (max), and a high common-mode rejection ratio (CMRR) of 90dB (min). The voltage gain can be set externally with resistors, ranging from 5V/V to 1000V/V. The amplifier offers a bandwidth of 0.5MHz at minimum gain and a rail-to-rail output swing.

 

This instrumentation amplifier is suitable for various applications including industrial sensor amplifiers (bridge, RTD, thermistor, position), physiological amplifiers (ECG, EEG, EMG), and A/D converter signal conditioning. It is available in a VSSOP (DGK) 8-pin package, measuring 3mm x 4.9mm with an area of 14.7 mm².

 

The operating temperature range is -55°C to 125°C, making it suitable for demanding environments.

INA321EA/250 Quick Information

Product Type: Instrumentation Amplifier
Canonical Name: Texas Instruments INA321EA/250 Instrumentation Amplifier
Subcategory: Analog Multipliers, Dividers

INA321EA/250 Compliance

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

INA321EA/250 Estimated Pricing

Qty Low High
1+ $1.75 $1.75

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

INA321EA/250 Features

  • Micropower instrumentation amplifier with 40µA quiescent current.
  • Low input offset voltage of ±500µV maximum.
  • High CMRR of 90dB minimum.
  • Wide gain range from 5V/V to 1000V/V.
  • Rail-to-rail output swing capability.

INA321EA/250 Applications

  • Industrial sensor signal conditioning.
  • Physiological signal amplification.
  • A/D converter signal conditioning.
  • Differential line receivers with gain.
  • Field utility meters.

INA321EA/250 FAQs

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

2.5V to 5.5V.

What package is available?

VSSOP (DGK) with 8 pins, dimensions 3mm × 4.9mm.

What is the operating temperature range?

-55°C to 125°C.

What is the typical quiescent current?

40 µA per channel.

What is the bandwidth at minimum gain?

500 kHz at gain of 5 V/V.

What is the input offset voltage?

±200 µV typical.

What is the common-mode rejection ratio?

94 dB typical.

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