INA129UA The Texas Instruments INA129UA is a precision, low-power instrumentation amplifier. It offers excellent accuracy with a versatile three op amp design.
Mfr Part #:

INA129UA

Available from 4 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments INA129UA is a precision, low-power instrumentation amplifier. It offers excellent accuracy with a versatile three op amp design.
✓ Total Stock: 12,342 pcs
$ Price Range: $5.03

INA129UA Available from 4 distributors

✓ Authorised
✓ Non-Authorised

INA129UA Specifications Quick View

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

INA129UA Description

Short technical summary and product information.

The Texas Instruments INA129UA is a low-power, general-purpose instrumentation amplifier designed for excellent accuracy. Its versatile three op-amp design and small size make it suitable for a wide range of applications.

 

Key electrical specifications include a low offset voltage of 50µV maximum, a low drift of 0.5µV/°C maximum, and a low input bias current of 5nA maximum. The amplifier boasts a high Common Mode Rejection Ratio (CMRR) of 120dB minimum and a bandwidth of 1.3MHz at a gain of 1. It operates over a wide supply voltage range of ±2.25V to ±18V and has a low quiescent current of 700µA.

 

The current-feedback input circuitry provides wide bandwidth even at high gain, reaching 200kHz at G = 100. A single external resistor can set any gain from 1 to 10,000. The INA129 gain equation uses a 49.4k→ resistor for compatibility with comparable devices.

 

This instrumentation amplifier is available in an 8-pin SOIC surface-mount package. It is specified for an operating temperature range of -40°C to 125°C. The inputs are protected to ±40V, adding robustness to designs.

INA129UA Quick Information

Product Type: Instrumentation Amplifier
Series: INA12x
Canonical Name: INA129UA Precision, Low Power Instrumentation Amplifier
Subcategory: Analog Multipliers, Dividers

INA129UA Compliance

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

INA129UA Estimated Pricing

Qty Low High
1+ $5.03 $5.03

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

INA129UA Features

  • Low offset voltage: 50µV maximum.
  • Low offset voltage drift: 0.5µV/°C maximum.
  • High Common Mode Rejection Ratio: 120dB minimum.
  • Wide supply voltage range: ±2.25V to ±18V.
  • Inputs protected to ±40V.

INA129UA Applications

  • Used in precision data acquisition systems.
  • Ideal for medical instrumentation amplifiers.
  • Suitable for industrial process control.
  • Applied in bridge sensor signal conditioning.
  • Used in low-noise audio preamplifiers.

INA129UA FAQs

5 frequently asked questions generated from this part’s specifications.
What is the maximum offset voltage of the INA129UA?

The maximum offset voltage is 50 µV.

What is the operating temperature range of the INA129UA?

The operating temperature range is -40°C to 125°C.

What package is the INA129UA available in?

The INA129UA is available in an 8-pin SOIC package.

What is the typical quiescent current of the INA129UA?

The typical quiescent current is 700 µA.

What is the common-mode rejection ratio of the INA129UA?

The minimum common-mode rejection ratio is 120 dB.

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