INA321E/2K5 The Texas Instruments INA321E/2K5 is a micropower instrumentation amplifier with a wide operating temperature range and low offset voltage. It offers a gain range from 5V/V to 1000V/V.
Mfr Part #:

INA321E/2K5

Available from 2 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments INA321E/2K5 is a micropower instrumentation amplifier with a wide operating temperature range and low offset voltage. It offers a gain range from 5V/V to 1000V/V.
Total Stock: 40,764 pcs
$ Price Range: $2.06

INA321E/2K5 Available from 2 distributors

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
22,600 pcs
22600 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
18,164 pcs
18164 pcs On Request 1 On Request On Request 12+ On Request On Request

INA321E/2K5 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Lead Style
Number of Channels
Operating Temperature Range
SVHC Present
Tape & Reel
Temperature Range

INA321E/2K5 Description

Short technical summary and product information.

The Texas Instruments INA321E/2K5 is a single-supply, CMOS instrumentation amplifier designed for cost-optimized applications. It features micropower consumption of only 40µA typical and a shutdown mode that reduces current to less than 1µA.

 

Key electrical specifications include a low input offset voltage of ±500µV maximum, a wide voltage gain range from 5V/V to 1000V/V, and a high Common-Mode Rejection Ratio (CMRR) of 90dB minimum. The amplifier operates over a supply voltage range of 2.5V to 5.5V and offers a bandwidth of 0.5MHz at minimum gain.

 

Designed for versatility, the INA321E/2K5 is suitable for various applications such as industrial sensor amplifiers (Bridge, RTD, Thermistor, Position), physiological amplifiers (ECG, EEG, EMG), and A/D converter signal conditioning. Its rail-to-rail output swing and wide operating temperature range of -55°C to 125°C make it robust for demanding environments.

 

The device is available in a VSSOP (DGK) 8-pin package, measuring 3 mm x 4.9 mm with an area of 14.7 mm². This surface-mount package is suitable for space-constrained designs.

INA321E/2K5 Quick Information

Product Type: Instrumentation Amplifier
Series: INA321
Canonical Name: INA321E/2K5 Instrumentation Amplifier

INA321E/2K5 Compliance

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

INA321E/2K5 Estimated Pricing

Qty Low High
1+ $2.06 $2.06

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

INA321E/2K5 Features

  • Micropower consumption of 40µA typical.
  • Low input offset voltage of ±500µV maximum.
  • High CMRR of 90dB minimum.
  • Wide operating temperature range -55°C to 125°C.
  • Rail-to-rail output swing capability.

INA321E/2K5 Applications

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

INA321E/2K5 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the supply voltage range of the INA321E/2K5?

The supply voltage range is 2.5V to 5.5V.

What package is the INA321E/2K5 available in?

The INA321E/2K5 is available in a VSSOP (DGK) package measuring 3mm x 4.9mm.

What is the operating temperature range?

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

What is the voltage gain range?

The voltage gain is adjustable from 5V/V to 1000V/V.

What is the quiescent current?

Typical quiescent current is 40µA per channel.

What is the typical input bias current?

Typical input bias current is 10pA, with a maximum of ±0.01nA.

What is the common-mode rejection ratio?

CMRR is 90dB minimum and 94dB typical.

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