INA128U The Texas Instruments INA128U is a precision instrumentation amplifier offering high CMRR and low noise. It operates over a wide supply range and features low quiescent current.
Mfr Part #:

INA128U

Available from 3 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments INA128U is a precision instrumentation amplifier offering high CMRR and low noise. It operates over a wide supply range and features low quiescent current.
✓ Total Stock: 10,201 pcs
$ Price Range: $8.13

INA128U Available from 3 distributors

✓ Authorised
✓ Non-Authorised

INA128U Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Halogen Free
Industrial Grade
Medical Grade
Military Grade
SVHC Present

INA128U Description

Short technical summary and product information.

The Texas Instruments INA128U is a versatile instrumentation amplifier designed for precision measurement applications. It boasts a high Common Mode Rejection Ratio (CMRR) of 120dB minimum and a low input offset voltage of 50µV maximum, ensuring accurate signal amplification.

 

With a bandwidth of 1.3MHz at a gain of 1, the INA128U is suitable for a variety of signal conditioning tasks. It operates from a wide supply voltage range of ±2.25V to ±18V and consumes only 700µA of quiescent current, making it ideal for low-power applications.

 

The device features robust input protection up to ±40V and is available in SOIC and PDIP packages. Its low noise characteristics (8nV/√Hz at 1kHz) and low input bias current make it well-suited for amplifying small differential signals in the presence of large common-mode voltages.

 

Key electrical specifications include a maximum gain error of 0.5% and a low input offset drift of 0.5µV/°C. The INA128U is designed for operation across a temperature range of -40°C to 125°C.

INA128U Quick Information

Product Type: Instrumentation Amplifier
Series: INA128
Canonical Name: Texas Instruments INA128U Instrumentation Amplifier
Subcategory: Instrumentation Amplifiers

INA128U Compliance

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

INA128U Estimated Pricing

Qty Low High
1+ $8.13 $8.13

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

INA128U Features

  • High CMRR of 120dB minimum.
  • Low input offset voltage of 50µV maximum.
  • Low noise at 1kHz is 8nV/√Hz.
  • Wide supply range from ±2.25V to ±18V.
  • Low quiescent current of 700µA.

INA128U Applications

  • Precision signal amplification.
  • Instrumentation systems.
  • Data acquisition.
  • Sensor signal conditioning.

INA128U FAQs

7 frequently asked questions generated from this part’s specifications.
What is the supply voltage range of the INA128U?

The INA128U operates on a single supply from 4.5V to 36V, or dual supplies from ±2.25V to ±18V.

What package options are available for the INA128U?

The INA128U is available in SOIC (D) and PDIP (P) packages.

What is the operating temperature range of the INA128U?

The INA128U operates from -40°C to +125°C.

What is the maximum input offset voltage of the INA128U?

50µV maximum.

What is the common-mode rejection ratio of the INA128U?

120dB minimum.

What is the bandwidth of the INA128U at unity gain?

1.3MHz typical at G=1.

Does the INA128U have input protection?

Yes, inputs are protected to ±40V.

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