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INA139NA The Texas Instruments INA139NA is a high-side, unipolar current shunt monitor. It features a wide supply and common-mode voltage range and low quiescent current.
Mfr Part #:

INA139NA

Available from 2 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments INA139NA is a high-side, unipolar current shunt monitor. It features a wide supply and common-mode voltage range and low quiescent current.
✓ Total Stock: 33,235 pcs
$ Price Range: $1.14

INA139NA Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Mufeng Electronics ✓
Non-Authorised Inventory information
30,000 pcs
On Request
30000 pcs On Request 1 On Request On Request 26+ On Request On Request
Xingangxin ✓
Non-Authorised Inventory information
3,235 pcs
On Request
3235 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

INA139NA Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Bandwidth
Lead Style
Mounting Type
Operating Temperature
Output Voltage
Quiescent Current
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INA139NA Description

Short technical summary and product information.

The INA139NA from Texas Instruments is a high-side, unipolar current shunt monitor designed for precise current measurement. It operates across a wide supply and common-mode voltage range, from 2.7V to 40V, making it suitable for various applications.

 

Key electrical characteristics include a low quiescent current of 60µA typical, enabling minimal error when the power supply is connected to either side of the current measurement shunt. The device converts a differential input voltage to a current output, which is then converted back to a voltage using an external load resistor, allowing for adjustable gain.

 

This current shunt monitor is available in a compact SOT23-5 package, ideal for space-constrained designs. It is specified for an industrial temperature range of -40°C to +85°C.

 

Applications for the INA139NA include current shunt measurement in automotive, telephone, and computer systems, as well as portable and battery-backup systems, battery chargers, power management, and cell phones.

INA139NA Quick Information

Product Type: Current Shunt Monitor
Canonical Name: INA139 High-Side Current Shunt Monitor
Subcategory: High-Side Current Monitors

INA139NA Compliance

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

INA139NA Estimated Pricing

Qty Low High
1+ $1.14 $1.14

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

INA139NA Features

  • Complete unipolar high-side current measurement circuit.
  • Wide supply and common-mode voltage range.
  • Independent supply and input common-mode voltages.
  • Single resistor gain set capability.
  • Low quiescent current of 60µA typical.

INA139NA Applications

  • Current shunt measurement in automotive systems.
  • Used in portable and battery-backup systems.
  • Suitable for battery chargers and power management.
  • Applications in cell phones and telephone systems.

INA139NA FAQs

7 frequently asked questions generated from this part’s specifications.
What is the supply voltage range of the INA139NA?

2.7V to 40V.

What is the package type of the INA139NA?

SOT-23-5.

What is the operating temperature range?

-40°C to +85°C.

What is the bandwidth of the INA139NA?

220 kHz.

What is the typical quiescent current?

60 µA.

What is the common mode rejection ratio (CMRR)?

100 dB minimum.

What is the maximum input offset voltage?

1000 µV.

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