TSX634IPT Equivalent & Substitute Parts

Part Overview

The TSX634IPT is an active linear amplifier integrated circuit manufactured by STMicroelectronics. This CMOS-based operational amplifier features four independent circuits in a 14-TSSOP surface mount package with rail-to-rail output capability. The device is classified as Active and is currently in production. Equivalent and substitute parts are identified to support design flexibility, supply chain continuity, and application-specific performance requirements where the TSX634IPT may be unavailable or where alternative specifications better match system requirements.

Substiute Parts

TSX634IPT

STMicroelectronicsIn Stock: 3342TSX634IPT Datasheet

Current PartRFQ

TLC2254AIPWR

Texas InstrumentsIn Stock: 2263TLC2254AIPWR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TSX634IPT is determined by strict alignment with the following critical parameters:

Package and Mechanical Compatibility: The substitute part must use the 14-TSSOP surface mount package with identical 0.173" (4.40mm) width to ensure PCB layout compatibility without redesign.

Functional Architecture: The substitute must provide four independent amplifier circuits in a single package to maintain circuit density and pin configuration equivalence.

Output Capability: Rail-to-rail output type is required to preserve signal swing characteristics across the specified supply voltage range.

Electrical Performance Envelope: The substitute must operate within the supply voltage range of 3.3 V to 16 V and maintain the operating temperature range of -40°C to 125°C.

Regulatory and Compliance Status: The substitute must hold Active product status and maintain ROHS3 compliance and MSL Level 1 rating to ensure manufacturing and environmental compatibility.

The TLC2254AIPWR from Texas Instruments meets all substitution criteria and is classified as a direct equivalent for the TSX634IPT.

Parameter Comparison

Engineering Selection Recommendations

TSX634IPT Selection Criteria:

The TSX634IPT is the primary choice when the application requires operation at supply voltages below 4.4 V, as this device supports a minimum supply voltage of 3.3 V. The TSX634IPT also provides higher output current capability at 92 mA per channel, making it suitable for applications requiring greater load driving capacity. The lower total supply current of 45 µA supports power-constrained designs.

TLC2254AIPWR Selection Criteria:

The TLC2254AIPWR is selected when improved input offset voltage performance is required, as it specifies 0.2 mV compared to 1.6 mV for the TSX634IPT. The TLC2254AIPWR is suitable for applications where the minimum supply voltage requirement is 4.4 V or higher. Both devices maintain identical slew rate, input bias current, operating temperature range, and package specifications.

Compliance and Regulatory Alignment:

Both devices hold Active product status, ROHS3 compliance, and MSL Level 1 rating. Both are classified under ECCN EAR99 and HTSUS 8542.33.0001, ensuring equivalent regulatory and export control treatment.

Frequently Asked Questions (FAQ)

Q: Can the TLC2254AIPWR directly replace the TSX634IPT in all applications?

A: Direct replacement is possible only when the application supply voltage is 4.4 V or higher. Applications operating at 3.3 V supply voltage require the TSX634IPT. Pin configuration and package dimensions are identical, enabling direct PCB substitution when voltage requirements are met.

Q: What is the impact of the different input offset voltage specifications?

A: The TLC2254AIPWR specifies 0.2 mV input offset voltage compared to 1.6 mV for the TSX634IPT. This difference affects DC accuracy in precision analog circuits. Applications with tight offset voltage budgets benefit from the TLC2254AIPWR specification. General-purpose applications are unaffected by this parameter difference.

Q: Are there output current limitations when substituting between these devices?

A: Yes. The TSX634IPT provides 92 mA per channel output current, while the TLC2254AIPWR provides 50 mA per channel. Applications requiring output currents above 50 mA must use the TSX634IPT. Applications with output current requirements below 50 mA can use either device.

Q: Do both devices support the same supply voltage range?

A: Both devices support a maximum supply voltage of 16 V. The TSX634IPT supports minimum supply voltage of 3.3 V, while the TLC2254AIPWR requires a minimum of 4.4 V. Verify application supply voltage specifications before substitution.

Q: Is the 14-TSSOP package identical between both devices?

A: Yes. Both devices use the 14-TSSOP package with 0.173" (4.40mm) width. Pin assignments are identical, enabling direct PCB layout compatibility without modification.

Q: What is the difference in total supply current consumption?

A: The TSX634IPT specifies 45 µA total supply current, while the TLC2254AIPWR specifies 160 µA for all four channels. Power-constrained applications benefit from the lower consumption of the TSX634IPT.

Q: Are both devices suitable for the same operating temperature range?

A: Yes. Both devices operate across -40°C to 125°C, supporting identical temperature specifications for industrial and extended-temperature applications.

Q: What packaging formats are available for each device?

A: The TSX634IPT is available in Cut Tape (CT) and Digi-Reel® packaging. The TLC2254AIPWR is available in Tape & Reel (TR) packaging. Verify packaging availability with your supplier for procurement requirements.