INA2126UG4 Equivalent & Substitute Parts

Part Overview

The INA2126UG4 is an instrumentation amplifier integrated circuit manufactured by Texas Instruments, featuring two independent amplifier circuits in a 16-SOIC surface mount package. This device is classified as obsolete, which necessitates identification of active equivalent parts for new designs and ongoing production requirements. The INA2126UG4 operates across a wide supply voltage range of 2.7V to 36V and is suitable for precision measurement and signal conditioning applications requiring low input bias current and minimal input offset voltage.

Substiute Parts

INA2126UG4

Texas InstrumentsIn Stock: 744INA2126UG4 Datasheet

Current PartRFQ

INA2126U

Texas InstrumentsIn Stock: 3849INA2126U Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the INA2126UG4 is determined by strict equivalence across the following critical parameters:

Electrical Specifications:

• Amplifier type (Instrumentation)
• Number of circuits (2)
• Slew rate (0.4V/µs)
• -3dB bandwidth (200 kHz)
• Input bias current (10 nA)
• Input offset voltage (100 µV)
• Supply current per channel (175µA)
• Output current per channel (10 mA)
• Supply voltage range (2.7V to 36V)
• Operating temperature range (-40°C to 85°C)

Mechanical & Package Specifications:

• Package type (16-SOIC)
• Package dimensions (0.154", 3.90mm Width)
• Mounting type (Surface Mount)

Compliance & Certification:

• RoHS3 compliance
• REACH status (Unaffected)
• ECCN classification (EAR99)

The INA2126U is identified as a direct substitute based on identical electrical and mechanical specifications. The primary distinction is product status (Active vs. Obsolete) and packaging format (Tube vs. unspecified for the main part).

Parameter Comparison

Engineering Selection Recommendations

The INA2126U is a direct functional equivalent to the INA2126UG4 across all electrical and mechanical specifications. The INA2126U holds Active product status, ensuring continued availability and manufacturer support, whereas the INA2126UG4 is classified as Obsolete.

Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for new designs and production environments. The INA2126U features improved moisture sensitivity level (MSL 2, 1 Year) compared to the INA2126UG4 (MSL 3, 168 Hours), providing enhanced reliability during storage and handling.

For applications requiring the INA2126UG4, the INA2126U is the appropriate substitute for new designs, production continuity, and long-term component availability. Existing inventory of the INA2126UG4 may be utilized where immediate obsolescence does not impact project timelines.

Frequently Asked Questions (FAQ)

Q: Can the INA2126U directly replace the INA2126UG4 in existing designs?

A: Yes. The INA2126U is electrically and mechanically identical to the INA2126UG4. All electrical parameters, including slew rate, bandwidth, input bias current, input offset voltage, supply current, output current, and supply voltage range are equivalent. Both devices use the 16-SOIC surface mount package with identical dimensions.

Q: What is the significance of the product status difference (Obsolete vs. Active)?

A: The INA2126UG4 is classified as Obsolete, indicating that Texas Instruments no longer manufactures this part number. The INA2126U is Active, meaning it is currently in production and available for purchase. For new designs and ongoing production, the INA2126U ensures component availability and manufacturer support.

Q: Are there differences in packaging or handling requirements?

A: The INA2126U is supplied in Tube packaging, whereas the INA2126UG4 packaging format is not specified. The INA2126U has a moisture sensitivity level (MSL) of 2 with a 1-year shelf life, compared to the INA2126UG4 with MSL 3 and a 168-hour shelf life. This indicates the INA2126U has improved moisture resistance and longer storage capability.

Q: Do both parts meet the same regulatory and compliance standards?

A: Yes. Both the INA2126UG4 and INA2126U are ROHS3 compliant and REACH unaffected. Both carry the same ECCN classification (EAR99) and HTSUS code (8542.33.0001).

Q: What are the key electrical parameters that define substitution compatibility?

A: Substitution is based on identical specifications for amplifier type (Instrumentation), number of circuits (2), slew rate (0.4V/µs), -3dB bandwidth (200 kHz), input bias current (10 nA), input offset voltage (100 µV), supply current (175µA per channel), output current (10 mA per channel), supply voltage range (2.7V to 36V), and operating temperature range (-40°C to 85°C).

Q: Is the 16-SOIC package compatible with existing PCB layouts?

A: Yes. Both parts use the identical 16-SOIC package with dimensions of 0.154 inches (3.90mm) width. PCB footprints, land patterns, and assembly processes designed for the INA2126UG4 are directly compatible with the INA2126U.