INA290A4IDCKT Equivalent & Substitute Parts

Part Overview

The INA290A4IDCKT is a current sense amplifier manufactured by Texas Instruments, designed for single-circuit current sensing applications. This linear amplifier operates across a wide supply voltage range of 2.7 V to 20 V and is housed in a compact 5-TSSOP (SC-70-5, SOT-353) 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 design continuity for applications currently utilizing this component.

Substiute Parts

INA290A4IDCKT

Texas InstrumentsIn Stock: 1132INA290A4IDCKT Datasheet

Current PartRFQ

INA290A4IDCKR

Texas InstrumentsIn Stock: 3472INA290A4IDCKR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the INA290A4IDCKT is determined by electrical and mechanical parameter equivalence across the following criteria:

Electrical Parameters:

• Amplifier type classification (Current Sense)
• Number of circuits (1)
• Slew rate (2 V/µs)
• -3dB bandwidth (850 kHz)
• Input bias current (20 µA)
• Input offset voltage (2 µV)
• Supply current (370 µA)
• Supply voltage range (2.7 V to 20 V minimum and maximum)
• Operating temperature range (-40°C to 125°C)

Mechanical Parameters:

• Package type (5-TSSOP, SC-70-5, SOT-353)
• Mounting type (Surface Mount)

Compliance Parameters:

• RoHS3 compliance
• REACH unaffected status
• Moisture sensitivity level (MSL 1)

Substitute parts must match all electrical specifications, operate within the identical supply voltage and temperature ranges, and utilize the same physical package footprint to ensure direct board-level compatibility.

Parameter Comparison

Engineering Selection Recommendations

The INA290A4IDCKR is a direct electrical and mechanical equivalent to the INA290A4IDCKT. Both devices are manufactured by Texas Instruments and share identical electrical specifications across all measured parameters: slew rate, bandwidth, input bias current, input offset voltage, supply current, supply voltage range, and operating temperature range. Both components utilize the same 5-TSSOP (SC-70-5, SOT-353) surface mount package, ensuring footprint compatibility on printed circuit boards.

The primary distinction between these parts is product status. The INA290A4IDCKT is designated Last Time Buy, indicating end-of-life status with no further production planned. The INA290A4IDCKR maintains Active status with current manufacturing availability. Both parts maintain identical RoHS3 compliance, REACH unaffected status, and MSL 1 moisture sensitivity classification.

For new designs or production requiring current component availability, the INA290A4IDCKR is the appropriate selection. For existing inventory management of Last Time Buy stock, the INA290A4IDCKT remains functionally equivalent for applications already qualified to this part number.

Frequently Asked Questions (FAQ)

Q: Can the INA290A4IDCKR be used as a direct replacement for the INA290A4IDCKT?

A: Yes. The INA290A4IDCKR is electrically and mechanically equivalent to the INA290A4IDCKT. All electrical parameters, supply voltage ranges, operating temperature specifications, and package dimensions are identical. Direct substitution on the printed circuit board is supported without design modification.

Q: What is the difference between INA290A4IDCKT and INA290A4IDCKR?

A: The devices are functionally identical. The difference is product status: INA290A4IDCKT is Last Time Buy (discontinued), while INA290A4IDCKR is Active (currently manufactured). The suffix letters in the part number indicate packaging format (T = Tape & Reel for both variants).

Q: Are both parts compatible with the same PCB footprint?

A: Yes. Both the INA290A4IDCKT and INA290A4IDCKR use the 5-TSSOP (SC-70-5, SOT-353) surface mount package. PCB layouts designed for either part number require no modification for component substitution.

Q: Do these parts meet the same compliance standards?

A: Yes. Both parts are ROHS3 compliant, REACH unaffected, and classified as MSL 1 (Unlimited moisture sensitivity level). Compliance documentation applies equally to both part numbers.

Q: What supply voltage range do these current sense amplifiers support?

A: Both devices operate across a supply voltage range of 2.7 V minimum to 20 V maximum, supporting single-supply and dual-supply configurations within this specification window.

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

A: Both the INA290A4IDCKT and INA290A4IDCKR operate across the temperature range of -40°C to 125°C, suitable for industrial and extended-temperature applications.