INA284AIDR Equivalent & Substitute Parts

Part Overview

The INA284AIDR is an active, high/low-side current monitor IC manufactured by Texas Instruments, designed for power management applications requiring precision current sensing. This Zero-Drift series device delivers ±0.4% accuracy across an input voltage range of -14V to 80V and operates reliably from -40°C to 125°C. The component is packaged in 8-SOIC surface mount configuration and is ROHS3 compliant with AEC-Q100 automotive qualification available in select variants. Equivalent and substitute parts are identified based on matching electrical specifications, package compatibility, and functional equivalence within the INA28x series family.

Key Parameters

Parameter	Value
Manufacturer	Texas Instruments
Category	Power Management (PMIC)
Function	Current Monitor
Sensing Method	High/Low-Side
Accuracy	±0.4%
Voltage - Input Range	-14V ~ 80V
Operating Temperature	-40°C ~ 125°C
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	2 (1 Year)

Substitute Part Grouping Explanation

Substitution eligibility for the INA284AIDR is determined by strict equivalence across the following critical parameters:

Manufacturer: Texas Instruments
Function: Current Monitor
Sensing Method: High/Low-Side
Accuracy: ±0.4%
Voltage - Input Range: -14V ~ 80V
Operating Temperature: -40°C ~ 125°C
Package / Case: 8-SOIC (0.154", 3.90mm Width)
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 2 (1 Year)

All substitute parts listed below meet these electrical and mechanical requirements. Packaging format (Tape & Reel, Cut Tape, or Digi-Reel) and automotive qualification (AEC-Q100) are secondary differentiators that do not affect functional equivalence but may influence procurement and application suitability.

Parameter Comparison

Part Number	Manufacturer	Accuracy	Voltage Input	Operating Temp	Package	Packaging Format	Grade	Qualification	Inventory (Pcs)
INA284AIDR	Texas Instruments	±0.4%	-14V ~ 80V	-40°C ~ 125°C	8-SOIC	Tape & Reel (TR)	—	—	2,100
INA282AQDRQ1	Texas Instruments	±0.4%	-14V ~ 80V	-40°C ~ 125°C	8-SOIC	Cut Tape (CT) & Digi-Reel®	Automotive	AEC-Q100	21,290
INA283AIDR	Texas Instruments	±0.4%	-14V ~ 80V	-40°C ~ 125°C	8-SOIC	Cut Tape (CT) & Digi-Reel®	—	—	3,602
INA283AQDRQ1	Texas Instruments	±0.4%	-14V ~ 80V	-40°C ~ 125°C	8-SOIC	Tape & Reel (TR)	Automotive	AEC-Q100	5,993
INA284AQDRQ1	Texas Instruments	±0.4%	-14V ~ 80V	-40°C ~ 125°C	8-SOIC	Tape & Reel (TR)	Automotive	AEC-Q100	2,022
INA285AIDR	Texas Instruments	±0.4%	-14V ~ 80V	-40°C ~ 125°C	8-SOIC	Tape & Reel (TR)	—	—	4,283
INA285AQDRQ1	Texas Instruments	±0.4%	-14V ~ 80V	-40°C ~ 125°C	8-SOIC	Tape & Reel (TR)	Automotive	AEC-Q100	17,672
INA286AIDR	Texas Instruments	±0.4%	-14V ~ 80V	-40°C ~ 125°C	8-SOIC	Tape & Reel (TR)	—	—	5,806
INA286AQDRQ1	Texas Instruments	±0.4%	-14V ~ 80V	-40°C ~ 125°C	8-SOIC	Cut Tape (CT) & Digi-Reel®	Automotive	AEC-Q100	2,617

Engineering Selection Recommendations

All listed substitute parts are functionally equivalent to the INA284AIDR and share identical electrical specifications and package geometry. Selection among these alternatives should be based on the following criteria:

For non-automotive applications: INA284AIDR, INA283AIDR, INA285AIDR, and INA286AIDR are suitable. These parts are active products without automotive qualification. Inventory availability ranges from 2,100 to 5,806 units.

For automotive applications: INA282AQDRQ1, INA283AQDRQ1, INA284AQDRQ1, INA285AQDRQ1, and INA286AQDRQ1 are qualified to AEC-Q100 and designated for automotive-grade applications. These variants carry the AQDRQ1 suffix and are recommended for designs requiring automotive compliance. INA285AQDRQ1 offers the highest inventory availability at 17,672 units.

For packaging format requirements: Tape & Reel (TR) packaging is available across all part numbers. Cut Tape (CT) & Digi-Reel® packaging is available for INA282AQDRQ1 and INA286AQDRQ1, providing alternative procurement options for specific supply chain or assembly requirements.

All parts maintain ROHS3 compliance, MSL 2 rating, and identical thermal and electrical operating ranges.

Frequently Asked Questions (FAQ)

Q: Can INA284AIDR be directly replaced with INA285AIDR or INA286AIDR?

A: Yes. All three parts share identical electrical specifications (±0.4% accuracy, -14V to 80V input range, -40°C to 125°C operating temperature) and 8-SOIC package geometry. Direct substitution is electrically and mechanically compatible.

Q: What is the difference between INA284AIDR and INA284AQDRQ1?

A: Both parts are functionally equivalent with identical electrical performance. INA284AQDRQ1 carries automotive-grade designation and AEC-Q100 qualification, making it suitable for automotive applications. INA284AQDRQ1 is also packaged in Tape & Reel format. Selection depends on application requirements and compliance needs.

Q: Are the non-automotive variants (AIDR suffix) suitable for automotive designs?

A: Non-automotive variants lack AEC-Q100 qualification. For designs requiring automotive compliance or operating in automotive environments, use the AQDRQ1 variants instead.

Q: Does packaging format (Tape & Reel vs. Cut Tape & Digi-Reel) affect electrical performance?

A: No. Packaging format is a procurement and assembly consideration only. Electrical specifications and performance are identical regardless of packaging format.

Q: Which substitute part has the best inventory availability?

A: INA285AQDRQ1 offers the highest inventory at 17,672 units. This automotive-qualified variant provides both functional equivalence and supply chain availability.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant with MSL 2 (1 Year) moisture sensitivity rating, matching the INA284AIDR specification.

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