INA280A5IDCKT Equivalent & Substitute Parts

Part Overview

The INA280A5IDCKT is a current sense amplifier manufactured by Texas Instruments, designed for precision current measurement applications. This integrated circuit operates as a single-channel current sense amplifier in a compact 5-TSSOP (SC-70-5) surface mount package. The device is classified as Last Time Buy, indicating discontinued production status. Identification of equivalent substitute parts is necessary to ensure continued availability and support for new designs or production requirements.

Substiute Parts

INA280A5IDCKT

Texas InstrumentsIn Stock: 1267INA280A5IDCKT Datasheet

Current PartRFQ

INA280A5IDCKR

Texas InstrumentsIn Stock: 3494INA280A5IDCKR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the INA280A5IDCKT is determined by electrical and mechanical parameter equivalence. The primary substitute part, INA280A5IDCKR, shares identical electrical specifications across all critical parameters: slew rate, bandwidth, input bias current, input offset voltage, supply current, supply voltage range, and operating temperature range. Both parts utilize the same package designation (5-TSSOP, SC-70-5, SOT-353) and mounting technology (surface mount), ensuring mechanical and thermal compatibility.

The substitution is valid based on the following key parameters:

• Amplifier Type: Current Sense (identical)
• Number of Circuits: 1 (identical)
• Slew Rate: 2 V/µs (identical)
• Bandwidth: 800 kHz (identical)
• Input Bias Current: 20 µA (identical)
• Input Offset Voltage: 15 µV (identical)
• Supply Current: 370 µA (identical)
• Supply Voltage Range: 2.7 V to 20 V (identical)
• Operating Temperature: -40°C to 125°C (identical)
• Package: SC-70-5 (identical)

Parameter Comparison

Engineering Selection Recommendations

The INA280A5IDCKR is the direct equivalent substitute for the INA280A5IDCKT. Selection of the INA280A5IDCKR is supported by the following factors:

Product Status: The INA280A5IDCKR maintains Active product status, ensuring continued manufacturing support and availability, whereas the INA280A5IDCKT is designated Last Time Buy and subject to discontinuation.

Regulatory Compliance: The INA280A5IDCKR is ROHS3 compliant and REACH unaffected, providing enhanced compliance documentation for applications requiring environmental and regulatory adherence.

Electrical Equivalence: All electrical parameters are identical between the two parts, including amplifier type, circuit count, slew rate, bandwidth, bias current, offset voltage, supply current, and supply voltage specifications.

Mechanical Compatibility: Both parts share identical package specifications (5-TSSOP, SC-70-5, SOT-353) and surface mount mounting technology, ensuring direct pin-for-pin compatibility and identical PCB footprints.

Thermal and Environmental Performance: Operating temperature range, moisture sensitivity level, and all thermal characteristics are identical, supporting equivalent performance across all environmental conditions.

Frequently Asked Questions (FAQ)

Q: Can the INA280A5IDCKR be used as a direct replacement for the INA280A5IDCKT?

A: Yes. The INA280A5IDCKR is a direct equivalent substitute. All electrical parameters, package specifications, and pin configurations are identical. The parts are pin-for-pin compatible and require no circuit modifications.

Q: What is the primary reason to substitute the INA280A5IDCKT?

A: The INA280A5IDCKT is designated Last Time Buy, indicating discontinued production. The INA280A5IDCKR maintains Active status and ensures continued availability for new designs and production requirements.

Q: Are there any differences in the package or footprint between these parts?

A: No. Both parts use the 5-TSSOP (SC-70-5, SOT-353) package with identical pin configurations and PCB footprints. No layout modifications are required.

Q: Do the electrical specifications differ between the INA280A5IDCKT and INA280A5IDCKR?

A: No. All electrical specifications are identical, including slew rate (2 V/µs), bandwidth (800 kHz), input bias current (20 µA), input offset voltage (15 µV), supply current (370 µA), and supply voltage range (2.7 V to 20 V).

Q: What is the operating temperature range for both parts?

A: Both parts operate across the identical temperature range of -40°C to 125°C (TA).

Q: Are there compliance differences between the two parts?

A: The INA280A5IDCKR is ROHS3 compliant and REACH unaffected. The INA280A5IDCKT does not specify these compliance certifications. For applications requiring regulatory compliance documentation, the INA280A5IDCKR is the appropriate selection.

Q: What is the moisture sensitivity level for these parts?

A: Both parts have a Moisture Sensitivity Level (MSL) of 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: Can these parts be used interchangeably in existing designs?

A: Yes. The INA280A5IDCKR is a complete functional and mechanical equivalent. No design changes, circuit modifications, or PCB layout adjustments are required for substitution.