TS974IN Equivalent & Substitute Parts

Part Overview

The TS974IN is a general-purpose operational amplifier manufactured by STMicroelectronics, featuring four independent amplifier circuits in a 14-DIP package. This device is designed for rail-to-rail output operation across a supply voltage range of 2.7 V to 10 V, with an operating temperature range of -40°C to 125°C. The TS974IN holds Automotive grade qualification under AEC-Q100 standards and is ROHS3 compliant.

The TS974IN is classified as an obsolete product. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications currently utilizing this component.

Substiute Parts

TS974IN

STMicroelectronicsIn Stock: 3294TS974IN Datasheet

Current PartRFQ

TL974IN

Texas InstrumentsIn Stock: 1242TL974IN Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TS974IN is determined by strict equivalence across the following critical parameters:

Functional Equivalence Criteria:

• Amplifier Type: General Purpose
• Number of Circuits: 4
• Output Type: Rail-to-Rail
• Package / Case: 14-DIP (0.300", 7.62 mm)
• Mounting Type: Through Hole

Electrical Performance Criteria:

• Gain Bandwidth Product: 12 MHz
• Current - Input Bias: 200 nA
• Voltage - Input Offset: 1 mV
• Current - Supply: 2 mA (x4 Channels)
• Operating Temperature: -40°C to 125°C

Compliance Criteria:

• RoHS Status: ROHS3 Compliant
• REACH Status: REACH Unaffected

Substitute parts must maintain compatibility across all specified parameters. Variations in slew rate, maximum output current per channel, and maximum supply voltage are permitted when the substitute part meets or exceeds the minimum performance requirements of the original design.

Parameter Comparison

Engineering Selection Recommendations

The TL974IN manufactured by Texas Instruments is a direct substitute for the TS974IN. Both devices share identical functional specifications, electrical performance characteristics, and compliance certifications. The TL974IN maintains ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment with the original component.

The primary advantage of the TL974IN substitution is product status: the TL974IN is classified as Active, providing assured long-term availability and supply chain continuity. The TS974IN is obsolete, presenting supply risk for future production requirements.

The TL974IN demonstrates improved performance in two parameters: slew rate increases from 4 V/µs to 5 V/µs, and maximum supply voltage extends from 10 V to 12 V. The output current per channel decreases from 100 mA to 80 mA on the TL974IN; this parameter must be evaluated against specific application requirements to confirm compatibility.

Both devices are qualified for automotive applications and support identical operating temperature ranges. Pin-to-pin compatibility and package dimensions are equivalent, enabling direct board-level substitution without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the TL974IN replace the TS974IN in existing designs?

A: Yes. The TL974IN is functionally equivalent to the TS974IN across all critical parameters: four-channel general-purpose amplifier configuration, rail-to-rail output, identical gain bandwidth product, matching input bias current and input offset voltage, and identical supply current specifications. Both devices operate across -40°C to 125°C and are housed in 14-DIP through-hole packages with identical pin assignments.

Q: What are the key differences between these two parts?

A: The TL974IN provides three performance enhancements: slew rate increases to 5 V/µs (versus 4 V/µs), maximum supply voltage extends to 12 V (versus 10 V), and product status is Active (versus Obsolete). The TL974IN output current per channel is specified at 80 mA, compared to 100 mA for the TS974IN. Applications requiring output currents exceeding 80 mA per channel must be evaluated for compatibility.

Q: Are there packaging differences between the TS974IN and TL974IN?

A: Both devices use 14-DIP (0.300", 7.62 mm) through-hole packages. The TS974IN is supplied in standard packaging, while the TL974IN is supplied in tube packaging. The physical dimensions and pin configuration are identical, enabling direct substitution on printed circuit boards.

Q: Do both parts meet automotive qualification requirements?

A: The TS974IN carries Automotive grade classification with AEC-Q100 qualification. The TL974IN specifications provided do not explicitly state automotive qualification. Automotive application requirements must be confirmed with the Texas Instruments datasheet before substitution in automotive designs.

Q: What is the supply availability status for each part?

A: The TS974IN is classified as Obsolete with 3,250 pieces currently in stock. The TL974IN is classified as Active with 1,217 pieces currently in stock. Active product status ensures continued manufacturing and long-term supply availability for the TL974IN.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both the TS974IN and TL974IN are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and distribution.