INA214CIRSWT Equivalent & Substitute Parts

Part Overview

The INA214CIRSWT is a zero-drift current sense amplifier manufactured by Texas Instruments, designed for single-ended current measurement applications. This device integrates one amplifier circuit in a compact 10-UQFN surface mount package with a supply voltage range of 2.7 V to 26 V and operating temperature range of -40°C to 125°C.

The INA214CIRSWT is classified as obsolete. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production requirements for applications utilizing this current sense amplifier topology.

Substiute Parts

INA214CIRSWT

Texas InstrumentsIn Stock: 1045INA214CIRSWT Datasheet

Current PartRFQ

INA214CIRSWR

Texas InstrumentsIn Stock: 3714INA214CIRSWR Datasheet

MFR RecommendedRFQ

NCS214RMUTAG

onsemiIn Stock: 6156NCS214RMUTAG Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the INA214CIRSWT are identified based on strict electrical and mechanical compatibility criteria. The following parameters determine substitution eligibility:

Primary Compatibility Criteria:

• Amplifier Type: Current Sense
• Number of Circuits: 1
• Package / Case: 10-UFQFN (surface mount)
• Operating Temperature Range: -40°C to 125°C
• Supply Voltage Span: Minimum 2.7 V, Maximum 26 V
• RoHS Status: ROHS3 Compliant

Secondary Compatibility Criteria:

• Voltage - Input Offset: 1 µV
• Mounting Type: Surface Mount
• Moisture Sensitivity Level: 1 (Unlimited)

Two substitute parts meet these criteria and are listed below.

Parameter Comparison

Engineering Selection Recommendations

INA214CIRSWR (Texas Instruments - Recommended Manufacturer Substitute)

The INA214CIRSWR is the direct equivalent substitute for the INA214CIRSWT. Both devices share identical electrical specifications, including slew rate (0.4 V/µs), gain bandwidth product (30 kHz), input bias current (28 µA), and supply current (65 µA). The critical distinction is product status: INA214CIRSWR is active and currently in production, whereas INA214CIRSWT is obsolete. The INA214CIRSWR maintains full compatibility with existing designs and is the preferred choice for new production and design continuity. Both parts are ROHS3 compliant and REACH unaffected.

NCS214RMUTAG (onsemi - Alternative Substitute)

The NCS214RMUTAG is an alternative substitute manufactured by onsemi. This device meets all primary compatibility criteria and maintains the same operating temperature range (-40°C to 125°C), package type (10-UFQFN), and input offset voltage (1 µV). The NCS214RMUTAG differs in the following electrical characteristics: output type is rail-to-rail (versus single-ended), slew rate is 1 V/µs (higher than 0.4 V/µs), gain bandwidth product is 60 kHz (higher than 30 kHz), input bias current is 39 µA (higher than 28 µA), and supply current is 40 µA (lower than 65 µA). The minimum supply voltage is 2.2 V (lower than 2.7 V). The NCS214RMUTAG is active and ROHS3 compliant. Selection of this part requires verification that the enhanced performance characteristics and different output topology are compatible with the application circuit.

Frequently Asked Questions (FAQ)

Q: Can INA214CIRSWR be used as a direct replacement for INA214CIRSWT?

A: Yes. The INA214CIRSWR is electrically and mechanically identical to the INA214CIRSWT. All key parameters—slew rate, gain bandwidth product, input bias current, input offset voltage, supply current, supply voltage range, operating temperature, and package type—are identical. The primary difference is product status: INA214CIRSWR is active, while INA214CIRSWT is obsolete.

Q: What are the differences between INA214CIRSWR and NCS214RMUTAG?

A: Both parts are current sense amplifiers in 10-UFQFN packages with identical operating temperature ranges and input offset voltage. Key differences include: (1) Output Type—INA214CIRSWR is single-ended, NCS214RMUTAG is rail-to-rail; (2) Slew Rate—INA214CIRSWR is 0.4 V/µs, NCS214RMUTAG is 1 V/µs; (3) Gain Bandwidth Product—INA214CIRSWR is 30 kHz, NCS214RMUTAG is 60 kHz; (4) Input Bias Current—INA214CIRSWR is 28 µA, NCS214RMUTAG is 39 µA; (5) Supply Current—INA214CIRSWR is 65 µA, NCS214RMUTAG is 40 µA; (6) Minimum Supply Voltage—INA214CIRSWR is 2.7 V, NCS214RMUTAG is 2.2 V.

Q: Is the NCS214RMUTAG suitable for all applications using INA214CIRSWT?

A: The NCS214RMUTAG meets primary compatibility criteria but has different electrical performance characteristics. The enhanced slew rate, higher bandwidth, and rail-to-rail output may provide benefits in certain applications but require circuit-level evaluation. Applications sensitive to input bias current, supply current, or output topology must assess compatibility before selection.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. Both INA214CIRSWR and NCS214RMUTAG are ROHS3 compliant and REACH unaffected, matching the compliance status of the INA214CIRSWT.

Q: What is the package compatibility between these parts?

A: All three parts use the 10-UFQFN surface mount package. Physical dimensions are 1.8x1.4 mm for INA214CIRSWT and INA214CIRSWR, and 1.4x1.8 mm for NCS214RMUTAG. These dimensions are equivalent and compatible with the same PCB footprint.

Q: Which substitute should be selected for new designs?

A: For new designs requiring direct electrical equivalence to the INA214CIRSWT, select INA214CIRSWR. For applications that can benefit from enhanced performance (higher slew rate, wider bandwidth, lower supply current), evaluate NCS214RMUTAG based on circuit requirements and output topology compatibility.