TS972IN Equivalent & Substitute Parts

Part Overview

The TS972IN is a general-purpose operational amplifier manufactured by STMicroelectronics, featuring dual circuits in an 8-Mini DIP through-hole package. This device is classified as obsolete, indicating discontinued production and limited availability. The TS972IN delivers rail-to-rail output capability with a 12 MHz gain bandwidth product, suitable for analog signal processing applications requiring low input bias current and moderate slew rate performance. Due to its obsolete status, identifying functionally equivalent substitute components is essential for design continuity and procurement planning.

Substiute Parts

TS972IN

STMicroelectronicsIn Stock: 3187TS972IN Datasheet

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TL972IP

Texas InstrumentsIn Stock: 1918TL972IP Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the TS972IN is determined by strict alignment of electrical and mechanical parameters. The following criteria establish functional equivalence:

Critical Matching Parameters:

• Dual-circuit configuration (2 operational amplifiers per package)
• Rail-to-rail output capability
• Gain bandwidth product of 12 MHz
• Input bias current of 200 nA
• Input offset voltage of 1 mV
• 8-DIP through-hole package format (0.300", 7.62mm)
• Operating temperature range of -40°C to 125°C
• Supply voltage compatibility within specified ranges

Acceptable Variation Parameters:

• Slew rate: Substitute may exceed the 4 V/µs specification
• Output current per channel: Substitute may exceed the 100 mA specification
• Maximum supply voltage: Substitute may exceed the 10 V maximum
• Product status: Active-status components are acceptable replacements for obsolete parts

The TL972IP from Texas Instruments meets all critical matching parameters and demonstrates acceptable variations in performance characteristics, qualifying it as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

The TL972IP qualifies as a direct substitute for the TS972IN based on the following engineering criteria:

Electrical Compatibility: Both devices maintain identical core specifications for gain bandwidth product, input bias current, input offset voltage, and supply current. The TL972IP's increased slew rate of 5 V/µs provides enhanced performance compared to the TS972IN's 4 V/µs specification, benefiting applications requiring faster signal transitions.

Mechanical Compatibility: Both components utilize the 8-DIP through-hole package format with identical pin spacing (0.300", 7.62mm), enabling direct board-level substitution without layout modifications.

Regulatory and Compliance Status: Both the TS972IN and TL972IP maintain ROHS3 compliance and REACH unaffected status. The TS972IN carries automotive-grade qualification (AEC-Q100), while the TL972IP is classified as active-status production. For applications requiring automotive qualification, the TS972IN's AEC-Q100 certification should be verified against system requirements.

Supply Voltage Consideration: The TL972IP supports a maximum supply voltage of 12 V compared to the TS972IN's 10 V maximum. This extended range provides additional design flexibility for systems operating at higher supply voltages within the 12 V limit.

Output Current Consideration: The TL972IP delivers 80 mA per channel, which is 20 mA lower than the TS972IN's 100 mA specification. Applications requiring output currents exceeding 80 mA per channel require verification of the TL972IP's suitability.

Frequently Asked Questions (FAQ)

Q: Can the TL972IP directly replace the TS972IN in existing circuit designs?

A: The TL972IP is mechanically and electrically compatible with the TS972IN for most applications. Both devices share identical package geometry, pin configuration, and core electrical specifications. However, applications requiring output currents exceeding 80 mA per channel must verify the TL972IP's reduced output current specification (80 mA versus 100 mA).

Q: What is the significance of the TS972IN's obsolete status?

A: Obsolete status indicates that STMicroelectronics has discontinued production of the TS972IN. Existing inventory is limited, and long-term availability cannot be assured. The TL972IP, classified as active-status production, provides a sustainable alternative for new designs and ongoing procurement requirements.

Q: Are there package differences between the TS972IN and TL972IP?

A: Both devices are packaged in 8-DIP format with 0.300" (7.62mm) pin spacing. The TS972IN is supplied in Mini DIP configuration, while the TL972IP is supplied in PDIP configuration. These designations refer to supplier packaging methods and do not affect electrical performance or board-level compatibility.

Q: Does the TL972IP meet automotive qualification requirements?

A: The TL972IP is not specified with automotive-grade qualification. The TS972IN carries AEC-Q100 qualification, which is required for automotive applications. Systems requiring automotive-grade components must confirm that the TL972IP meets applicable automotive standards before substitution.

Q: What is the impact of the TL972IP's higher slew rate?

A: The TL972IP's 5 V/µs slew rate exceeds the TS972IN's 4 V/µs specification. This improvement enables faster signal transitions and reduced settling time in applications sensitive to slew rate performance. No negative impact results from this performance enhancement.

Q: How does the extended supply voltage range of the TL972IP affect substitution?

A: The TL972IP supports supply voltages up to 12 V, compared to the TS972IN's 10 V maximum. This extended range provides additional design flexibility for systems operating between 10 V and 12 V. The minimum supply voltage of 2.7 V remains identical for both devices.

Q: What should be verified before substituting the TL972IP for the TS972IN?

A: Verify that the application's output current requirement does not exceed 80 mA per channel. Confirm that automotive qualification is not a system requirement. Validate that the supply voltage range of 2.7 V to 12 V is compatible with the system design. Perform functional testing to confirm circuit operation with the substitute component.