INA2141UG4 Equivalent & Substitute Parts

Part Overview

The INA2141UG4 is a dual-channel instrumentation amplifier manufactured by Texas Instruments, housed in a 16-SOIC surface mount package. This device is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing design support and production continuity. The INA2141UG4 delivers precision signal conditioning with low input bias current and minimal input offset voltage, suitable for applications requiring accurate analog signal measurement and amplification across industrial and instrumentation systems.

Substiute Parts

INA2141UG4

Texas InstrumentsIn Stock: 998INA2141UG4 Datasheet

Current PartRFQ

INA2141U

Burr BrownIn Stock: 1479INA2141U Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the INA2141UG4 is determined by strict equivalence across all electrical and mechanical parameters. The substitute part must satisfy the following criteria:

Critical Matching Parameters:

• Amplifier type: Instrumentation
• Number of circuits: 2 channels
• Slew rate: 4 V/µs
• -3dB bandwidth: 200 kHz
• Input bias current: 2 nA
• Input offset voltage: 20 µV
• Supply current per channel: 1.5 mA
• Output current per channel: 15 mA
• Supply voltage range: 4.5 V to 36 V
• Operating temperature: -40°C to 85°C
• Package: 16-SOIC (0.295", 7.50mm Width)
• RoHS3 compliance
• MSL rating: 3 (168 Hours)

The INA2141U, manufactured by Burr Brown, meets all specified electrical and mechanical parameters and qualifies as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

The INA2141U manufactured by Burr Brown is the qualified substitute for the obsolete INA2141UG4. Selection is based on the following engineering criteria:

Electrical Equivalence: All analog performance parameters—slew rate, bandwidth, input bias current, input offset voltage, supply current, and output current—are identical between the main part and substitute.

Mechanical Compatibility: Both devices are housed in the 16-SOIC package with identical physical dimensions (0.295", 7.50mm Width), ensuring direct PCB footprint compatibility without layout modifications.

Compliance Alignment: The INA2141U maintains ROHS3 compliance and MSL rating 3 (168 Hours), matching the environmental and handling requirements of the original part.

Product Status Advantage: The INA2141U carries Active product status, ensuring continued availability and manufacturer support, whereas the INA2141UG4 is classified as Obsolete.

Supply Continuity: The INA2141U is available in higher inventory quantities (1458 Pcs), supporting production requirements and reducing supply chain risk.

Frequently Asked Questions (FAQ)

Q: Can the INA2141U be used as a direct replacement for the INA2141UG4 in existing designs?

A: Yes. The INA2141U is electrically and mechanically equivalent to the INA2141UG4 across all specified parameters. No circuit modifications or PCB redesign are required. Both devices operate identically within the specified electrical performance envelope and occupy the same 16-SOIC footprint.

Q: What is the difference between the INA2141UG4 and INA2141U?

A: The primary difference is manufacturer designation and product status. The INA2141UG4 is manufactured by Texas Instruments and is classified as Obsolete. The INA2141U is manufactured by Burr Brown and maintains Active product status. All electrical and mechanical specifications are identical.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts are ROHS3 compliant and carry identical MSL rating 3 (168 Hours). Environmental and regulatory compliance requirements are equivalent.

Q: What is the supply voltage operating range for both parts?

A: Both the INA2141UG4 and INA2141U operate across a supply voltage range of 4.5 V to 36 V, supporting single or dual supply configurations within this range.

Q: What is the input bias current specification?

A: Both devices specify 2 nA input bias current, ensuring minimal loading on high-impedance signal sources.

Q: What package options are available?

A: Both parts are supplied exclusively in 16-SOIC surface mount packaging with dimensions of 0.295" × 7.50mm width. No alternative package options are available for these part numbers.

Q: Is the INA2141U available in higher quantities than the INA2141UG4?

A: Yes. Current inventory shows 1458 Pcs of the INA2141U in stock compared to 981 Pcs of the INA2141UG4, providing improved supply availability for production planning.