INA105KUG4 Equivalent & Substitute Parts

Part Overview

The INA105KUG4 is a differential amplifier integrated circuit manufactured by Texas Instruments, designed for precision signal conditioning applications. This device features a single differential amplifier circuit in an 8-SOIC surface mount package with a slew rate of 3V/µs and -3dB bandwidth of 1 MHz.

The INA105KUG4 is currently discontinued at DiGi Electronics. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for production and repair applications. The substitute part INA105KU provides functional equivalence while maintaining full electrical and mechanical compatibility.

Substiute Parts

INA105KUG4

Texas InstrumentsIn Stock: 1063INA105KUG4 Datasheet

Current PartRFQ

INA105KU

Texas InstrumentsIn Stock: 4835INA105KU Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the INA105KUG4 is determined by strict equivalence across all electrical and mechanical parameters. The substitute part must satisfy the following criteria:

Electrical Equivalence Requirements:

• Amplifier Type: Differential
• Number of Circuits: 1
• Slew Rate: 3V/µs
• -3dB Bandwidth: 1 MHz
• Voltage - Input Offset: 50 µV
• Current - Supply: 1.5mA
• Current - Output / Channel: 20 mA
• Voltage - Supply Span: 10V to 36V
• Operating Temperature Range: -40°C to 85°C

Mechanical Equivalence Requirements:

• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Mounting Type: Surface Mount
• Supplier Device Package: 8-SOIC

Compliance Requirements:

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 3 (168 Hours)

The INA105KU meets all specified electrical and mechanical parameters and maintains full compliance with RoHS3 and MSL requirements, establishing it as a direct substitute for the INA105KUG4.

Parameter Comparison

Engineering Selection Recommendations

The INA105KU is the direct substitute for the INA105KUG4. Both parts are manufactured by Texas Instruments and share identical electrical specifications and mechanical packaging. The primary distinction is product status: the INA105KUG4 is discontinued, while the INA105KU is in Last Time Buy status.

Selection Basis:

The INA105KU maintains full compliance with ROHS3 requirements and MSL Level 3 specifications, ensuring compatibility with standard surface mount assembly processes and environmental regulations. The identical electrical parameters—including slew rate, bandwidth, input offset voltage, supply current, and output current—guarantee functional equivalence in all circuit applications.

The 8-SOIC package geometry and surface mount mounting type are identical between both parts, eliminating any PCB layout or assembly process modifications.

For new designs or component replenishment, the INA105KU should be selected as the active part number. Existing inventory of INA105KUG4 remains functionally equivalent and may be used interchangeably in production until exhausted.

Frequently Asked Questions (FAQ)

Q: Can the INA105KU directly replace the INA105KUG4 without circuit modifications?

A: Yes. The INA105KU is electrically and mechanically identical to the INA105KUG4. All electrical parameters, package dimensions, and pin configurations are equivalent. No circuit modifications are required.

Q: What is the difference between INA105KUG4 and INA105KU?

A: The primary difference is packaging format and product status. The INA105KUG4 is supplied in a specific packaging configuration and is discontinued. The INA105KU is supplied in tube packaging and is in Last Time Buy status. Electrical specifications and mechanical package dimensions are identical.

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

A: No. Both parts are ROHS3 compliant and carry identical MSL Level 3 (168 Hours) ratings. They meet the same environmental and regulatory requirements.

Q: Can I use the INA105KU in applications originally designed for the INA105KUG4?

A: Yes. The INA105KU is a direct functional equivalent. All electrical parameters, operating temperature range, supply voltage range, and output specifications are identical. PCB layouts and circuit designs require no modification.

Q: What is the inventory status of these parts?

A: The INA105KUG4 has 960 pieces in stock but is discontinued. The INA105KU has 4,810 pieces available and is in Last Time Buy status. For new orders, the INA105KU should be specified.

Q: Are the pin configurations identical between INA105KUG4 and INA105KU?

A: Yes. Both parts use the 8-SOIC package with identical pin assignments and functionality. Direct PCB substitution is possible without layout changes.