Mfr Part #:

INA199B3RSWR

The Texas Instruments INA199B3RSWR is a current sense amplifier designed for overcurrent protection and precision current measurement. It offers a wide common-mode range and high accuracy.

✓ Total Stock: 2,980 pcs

$ Price Range: $0.18

INA199B3RSWR Available from 1 distributor

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Smaxon Electronics ✓ Non-Authorised Inventory information	2,980 pcs On Request	2980 pcs	On Request	1	On Request	On Request	1344+	On Request	On Request

INA199B3RSWR Description

Short technical summary and product information.

The INA199B3RSWR from Texas Instruments is a voltage-output, current-shunt monitor designed for applications requiring precise current measurement and overcurrent protection. This device operates across a wide common-mode voltage range of -0.3 V to 26 V, independent of the supply voltage, making it suitable for both low-side and high-side sensing.

Key electrical specifications include a maximum accuracy of ±1.5% and an offset voltage of ±150 µV, enabling the sensing of small shunt drops. It offers a choice of fixed gains: 50 V/V, 100 V/V, or 200 V/V. The amplifier has a low quiescent current of 100 µA maximum and operates over an extended temperature range of -40°C to 125°C.

The INA199B3RSWR is available in a compact 10-pin UQFN package, suitable for surface mounting. Its design is beneficial for system optimization and closed-loop feedback circuits where accurate current monitoring is critical.

This current sense amplifier is commonly used in applications such as battery management, power supply monitoring, and motor control, where efficient and reliable current sensing is essential for performance and safety.

INA199B3RSWR Quick Information

Product Type: Current Sense Amplifier

Series: INA199

Canonical Name: Texas Instruments INA199B3RSWR Current Sense Amplifier

Subcategory: Power Management

INA199B3RSWR Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

INA199B3RSWR Estimated Pricing

Qty	Low	High
1+	$0.18	$0.18

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

INA199B3RSWR Features

Wide common-mode range from -0.3 V to 26 V.
High accuracy with ±1.5% maximum gain error.
Low offset voltage of ±150 µV maximum.
Available in fixed gains of 50, 100, or 200 V/V.
Compact 10-pin UQFN surface-mount package.

INA199B3RSWR Applications

Used for overcurrent protection.
Enables precision current measurement.
Suitable for system optimization.
Applicable in closed-loop feedback circuits.
Ideal for battery management systems.

INA199B3RSWR FAQs

7 frequently asked questions generated from this part’s specifications.

What is the operating voltage range for the INA199B3RSWR?

The operating voltage range is -0.1 V to 26 V.

What is the package type for the INA199B3RSWR?

The INA199B3RSWR is available in a 10-UQFN package.

What is the operating temperature range of the INA199B3RSWR?

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

What is the accuracy of the INA199B3RSWR?

The accuracy is ±1.5% maximum.

What is the function of the INA199B3RSWR?

The function is Current Sense.

What is the sensing method used by the INA199B3RSWR?

The sensing method is High/Low-Side.

What are the available gain options for the INA199 series?

The available gains are 50 V/V, 100 V/V, and 200 V/V.

Category	Current RegulationManagement
Manufacturer Name	Texas Instruments
Accuracy	±1.5%
Function	Current Sense
Gain	50 V/V, 100 V/V, 200 V/V
Lead Style	No Lead
Mounting Type	Surface Mount
Operating Temperature	-40°C to 125°C
Quiescent Current	100 µA
Sensing Method	High/Low-Side
Supplier Device Package	10-UQFN (1.8x1.4)
Supplier Package	10-UQFN (1.8x1.4)
Voltage	-0.1 V to 26 V