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INA138NA/250 The Texas Instruments INA138NA/250 is a unipolar, high-side current shunt monitor. It operates over a wide supply and common-mode voltage range and features a low quiescent current.
Mfr Part #:

INA138NA/250

Available from 6 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments INA138NA/250 is a unipolar, high-side current shunt monitor. It operates over a wide supply and common-mode voltage range and features a low quiescent current.
✓ Total Stock: 11,853 pcs
$ Price Range: $0.99

INA138NA/250 Available from 6 distributors

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INA138NA/250 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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INA138NA/250 Description

Short technical summary and product information.

The INA138NA/250 from Texas Instruments is a high-side, unipolar current shunt monitor designed for precise current measurement. It supports a wide supply and common-mode voltage range from 2.7V to 36V, making it suitable for various applications.

 

This device features a single resistor gain set and a low quiescent current of 25µA typical, allowing for minimal error when the power supply is connected to either side of the current measurement shunt. The INA138NA/250 converts a differential input voltage to a current output, which is then converted back to a voltage using an external load resistor to set the gain.

 

It is specified for a wide operating temperature range of -40°C to +125°C. The component is housed in a compact SOT-23-5 package, ideal for space-constrained designs. Applications include automotive, battery chargers, power management, and cell phones.

 

Key electrical specifications include a typical quiescent current of 25µA, a maximum gain error of 2%, and a bandwidth of 32kHz. The accuracy is rated at ±0.5%.

INA138NA/250 Quick Information

Product Type: Current Monitor IC
Canonical Name: INA138 High-Side Current Shunt Monitor
Subcategory: High-Side

INA138NA/250 Compliance

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

INA138NA/250 Estimated Pricing

Qty Low High
1+ $0.99 $0.99

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

INA138NA/250 Features

  • Complete unipolar high-side current measurement circuit.
  • Wide supply and common-mode voltage range.
  • Independent supply and input common-mode voltages.
  • Low quiescent current of 25µA typical.
  • Specified for -40°C to +125°C temperature range.

INA138NA/250 Applications

  • Used for current shunt measurement.
  • Suitable for portable and battery-backup systems.
  • Applicable in battery chargers.
  • Designed for power management applications.
  • Can be used in cell phones.

INA138NA/250 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the supply voltage range of the INA138NA/250?

The supply voltage range is 2.7V to 36V.

What is the common-mode voltage range of the INA138NA/250?

The common-mode voltage range is –0.3V to 60V.

What package does the INA138NA/250 come in?

The INA138NA/250 is available in a SOT-23-5 package (also specified as SC-74A, SOT-753).

What is the operating temperature range of the INA138NA/250?

The operating temperature range is –40°C to +125°C.

What is the quiescent current of the INA138NA/250?

The typical quiescent current is 25µA, with a maximum of 0.06mA.

What is the bandwidth of the INA138NA/250?

The bandwidth is 32kHz.

What is the accuracy of the INA138NA/250?

The accuracy is ±0.5%.

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