Mfr Part #:

INA199B2QDCKRQ1

The Texas Instruments INA199B2QDCKRQ1 is an automotive-qualified current sense amplifier featuring a ±1.5% gain error and a wide common-mode voltage range of -0.3V to 26V. It is supplied in a compact SC-70-6 package.

✓ Total Stock: 77,142 pcs

$ Price Range: $0.24

INA199B2QDCKRQ1 Available from 3 distributors

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Romaks Technologies ✓ Non-Authorised Inventory information	66,963 pcs On Request	66963 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request
Xingangxin ✓ Non-Authorised Inventory information	7,030 pcs On Request	7030 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request
Smaxon Electronics ✓ Non-Authorised Inventory information	3,149 pcs On Request	3149 pcs	On Request	1	On Request	On Request	1818+	On Request	On Request

INA199B2QDCKRQ1 Description

Short technical summary and product information.

The Texas Instruments INA199B2QDCKRQ1 is a bidirectional, zero-drift, current-shunt monitor designed for automotive applications. It offers a wide common-mode voltage range from -0.3V to 26V, enabling accurate current sensing even in challenging environments. The device features selectable gains of 50 V/V, 100 V/V, or 200 V/V, with a maximum gain error of ±1.5% for the B version.

This current sense amplifier boasts a low input offset voltage of ±150 µV maximum, allowing for the detection of small shunt voltage drops. Its operating temperature range is -40°C to 125°C, and it is AEC-Q100 qualified for temperature grade 1. The INA199B2QDCKRQ1 is suitable for low-side or high-side current sensing applications.

Packaged in a compact 6-pin SC-70 package, this device is ideal for space-constrained designs. Its functional safety capability aids in the design of safety-critical automotive systems. The amplifier provides an analog voltage output proportional to the current being measured.

INA199B2QDCKRQ1 Quick Information

Product Type: Current Sense Amplifier

Canonical Name: Texas Instruments INA199B2QDCKRQ1 Current Sense Amplifier

Subcategory: Power Management

INA199B2QDCKRQ1 Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

INA199B2QDCKRQ1 Estimated Pricing

Qty	Low	High
1+	$0.24	$0.24

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

INA199B2QDCKRQ1 Features

Automotive AEC-Q100 qualified.
Wide -0.3V to 26V common-mode range.
Selectable voltage gains of 50, 100, 200 V/V.
Low ±150 µV maximum offset voltage.
Compact SC-70-6 package.

INA199B2QDCKRQ1 Applications

Automotive battery management systems.
High-side current monitoring.
Low-side current monitoring.
Power supply current regulation.
Motor control current sensing.

INA199B2QDCKRQ1 FAQs

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

What is the operating temperature range of the INA199B2QDCKRQ1?

The INA199B2QDCKRQ1 operates within a temperature range of -40°C to 125°C.

What is the maximum input offset voltage for this device?

The maximum input offset voltage is ±150 µV.

What is the typical input offset drift of the INA199B2QDCKRQ1?

The typical input offset drift is 0.1 µV/°C.

What is the maximum quiescent current of the INA199B2QDCKRQ1?

The maximum quiescent current is 0.115 mA.

What are the available voltage gain options for this part?

The available voltage gain options are 50 V/V, 100 V/V, and 200 V/V.

What is the minimum CMRR of the INA199B2QDCKRQ1?

The minimum CMRR is 100 dB.

What is the typical slew rate of the INA199B2QDCKRQ1?

The typical slew rate is 0.4 V/µs.

INA199B2QDCKRQ1 Alternate Parts

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INA199B1QDCKRQ1

Texas Instruments

The Texas Instruments INA199B1QDCKRQ1 is a current sense amplifier designed for high/low-side sensing. It offers ±1.5% accuracy and operates over a wide common-mode voltage range.

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