INA117KU/2K5 Equivalent & Substitute Parts

Part Overview

The INA117KU/2K5 is a differential amplifier integrated circuit manufactured by Texas Instruments, housed in an 8-SOIC surface mount package. This single-circuit operational amplifier is designed for precision differential signal conditioning applications. The device is currently in active production status with 17,438 units in stock. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when specific packaging or performance characteristics are required for system requirements.

Substiute Parts

INA117KU/2K5

Texas InstrumentsIn Stock: 17460INA117KU/2K5 Datasheet

Current PartRFQ

AD629ARZ

Analog Devices Inc.In Stock: 16458AD629ARZ Datasheet

MFR RecommendedRFQ

AD629ARZ-RL

Analog Devices Inc.In Stock: 6098AD629ARZ-RL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the INA117KU/2K5 are identified based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

Mechanical Compatibility:

• Identical package type: 8-SOIC (0.154", 3.90mm Width)
• Surface mount mounting type
• Pin-compatible footprint

Electrical Compatibility:

• Single circuit configuration
• Overlapping supply voltage range (minimum 10 V to maximum 36 V for INA117KU/2K5)
• Compatible operating temperature range (-40°C ~ 85°C)
• Output current capability sufficient for application requirements

Regulatory Compliance:

• ROHS3 compliance
• REACH unaffected status
• EAR99 classification

The identified substitutes (AD629ARZ and AD629ARZ-RL) share the same 8-SOIC package footprint and operate within compatible voltage and temperature ranges. Both parts are manufactured by Analog Devices Inc. and maintain active product status with full regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection Criteria:

The INA117KU/2K5 and its substitutes share identical 8-SOIC package geometry and surface mount compatibility, enabling direct footprint replacement on printed circuit boards. All three parts maintain active product status and ROHS3 compliance, ensuring long-term availability and regulatory adherence.

Supply Voltage Consideration:

The INA117KU/2K5 requires a minimum supply voltage of 10 V, while the AD629ARZ and AD629ARZ-RL variants operate from a minimum of 5 V. In applications requiring operation below 10 V, the Analog Devices substitutes provide extended voltage range capability.

Packaging Selection:

AD629ARZ-RL is supplied in Cut Tape (CT) & Digi-Reel® packaging, matching the INA117KU/2K5 packaging format. The AD629ARZ is supplied in Tube packaging and represents an alternative when reel packaging is not required.

Moisture Sensitivity:

The INA117KU/2K5 carries MSL 3 rating (168 hours), while both AD629 variants carry MSL 1 rating (unlimited). Applications with extended storage or high-humidity environments benefit from the lower moisture sensitivity of the Analog Devices parts.

Performance Characteristics:

The AD629 series exhibits lower input offset voltage (200 µV versus 600 µV) and higher bandwidth (500 kHz versus 200 kHz), with slightly reduced slew rate (2.1 V/µs versus 2.6 V/µs). These differences are application-dependent and require circuit-level evaluation.

Frequently Asked Questions (FAQ)

Q: Can AD629ARZ and AD629ARZ-RL be used interchangeably with INA117KU/2K5?

A: Both AD629 variants share identical electrical specifications and the same 8-SOIC package footprint as the INA117KU/2K5. The primary difference is packaging format: AD629ARZ-RL uses Cut Tape & Digi-Reel® (matching INA117KU/2K5), while AD629ARZ uses Tube packaging. Selection depends on assembly equipment compatibility and inventory management requirements.

Q: What is the impact of the 5 V minimum supply voltage on the AD629 substitutes?

A: The INA117KU/2K5 requires minimum 10 V supply, while AD629 variants operate from 5 V minimum. In applications using 10 V or higher supply voltages, both parts are fully compatible. For systems operating between 5 V and 10 V, only the AD629 series is suitable.

Q: How do the bandwidth differences affect substitution?

A: The INA117KU/2K5 provides 200 kHz bandwidth, while AD629 variants provide 500 kHz bandwidth. Higher bandwidth in the substitute parts enables faster signal response. Applications requiring specific bandwidth characteristics must evaluate whether the increased bandwidth of the AD629 series introduces undesired noise or stability issues in the circuit design.

Q: Are there compliance differences between these parts?

A: All three parts are ROHS3 compliant and REACH unaffected. The primary compliance difference is Moisture Sensitivity Level: INA117KU/2K5 is MSL 3 (168 hours), while AD629 variants are MSL 1 (unlimited). This affects storage and handling requirements, with AD629 variants requiring less stringent moisture control.

Q: What packaging considerations apply to high-volume production?

A: AD629ARZ-RL in Cut Tape & Digi-Reel® format matches the INA117KU/2K5 packaging and integrates directly into existing automated assembly processes. AD629ARZ in Tube packaging requires different handling equipment and may necessitate process modifications.

Q: Is the lower input offset voltage of AD629 always beneficial?

A: The AD629 series exhibits 200 µV input offset versus 600 µV for INA117KU/2K5. Lower offset voltage reduces DC error in precision applications. However, circuit design and calibration methods determine whether this improvement provides practical benefit. Applications already compensating for offset voltage may not require substitution based on this parameter alone.