TSB712IYST Equivalent & Substitute Parts

Part Overview

The TSB712IYST is a general-purpose operational amplifier manufactured by STMicroelectronics, featuring dual circuits in a rail-to-rail configuration. This device is classified as an active linear amplifier component designed for general-purpose signal conditioning and amplification applications. The part is currently in active production status with automotive-grade qualification (AEC-Q100) and operates across an extended temperature range of -40°C to 125°C. Substitute parts are identified when equivalent functional performance can be achieved through alternative manufacturers while maintaining compatibility with the specified electrical and mechanical parameters of the application.

Substiute Parts

TSB712IYST

STMicroelectronicsIn Stock: 3942TSB712IYST Datasheet

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OPA2172IDGKR

Texas InstrumentsIn Stock: 10391OPA2172IDGKR Datasheet

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TLV2172IDGKR

Texas InstrumentsIn Stock: 5360TLV2172IDGKR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TSB712IYST are identified based on functional equivalence across the following critical parameters: dual-circuit general-purpose amplifier topology, rail-to-rail output configuration, surface-mount packaging in 8-pin TSSOP/MSOP form factor, and operating temperature range of -40°C to 125°C. The substitute parts OPA2172IDGKR and TLV2172IDGKR, both manufactured by Texas Instruments, maintain compatibility with these core requirements. Both substitute devices operate within the maximum supply voltage specification (36 V) and provide the same number of amplifier circuits and output type. Substitution is valid when the application does not require the specific slew rate, gain bandwidth product, or input bias current characteristics of the original TSB712IYST, as the substitute parts exhibit different performance in these parameters. All substitute parts maintain automotive-grade compliance, RoHS3 compliance, and surface-mount configuration.

Parameter Comparison

Engineering Selection Recommendations

All three devices—TSB712IYST, OPA2172IDGKR, and TLV2172IDGKR—maintain active production status and comply with RoHS3 environmental standards. The TSB712IYST is qualified to AEC-Q100 automotive standards and carries automotive-grade designation. Both Texas Instruments substitute parts (OPA2172IDGKR and TLV2172IDGKR) are also qualified to AEC-Q100 and suitable for automotive applications.

Selection between these parts depends on application-specific electrical requirements. The TSB712IYST supports a lower minimum supply voltage (2.7 V) compared to the substitute parts (4.5 V minimum). The TSB712IYST provides lower slew rate (3 V/µs) and lower gain bandwidth product (6 MHz), while the substitute parts offer higher slew rate (10 V/µs) and higher gain bandwidth product (10 MHz). The substitute parts provide lower input bias current and lower input offset voltage, representing improved precision characteristics. The substitute parts also provide higher output current per channel (75 mA versus 50 mA).

Selection should be based on whether the application requires the specific performance envelope of the TSB712IYST or whether the enhanced performance characteristics of the substitute parts are compatible with the circuit design.

Frequently Asked Questions (FAQ)

Q: Can OPA2172IDGKR or TLV2172IDGKR be used as direct replacements for TSB712IYST?

A: Both substitute parts share the same package form factor (8-TSSOP/8-MSOP), dual-circuit configuration, rail-to-rail output, and operating temperature range. However, the minimum supply voltage differs: TSB712IYST operates from 2.7 V minimum, while both substitute parts require 4.5 V minimum. If the application operates at supply voltages below 4.5 V, the substitute parts are not compatible. If supply voltage is 4.5 V or higher, compatibility depends on whether the circuit design accommodates the different slew rate, gain bandwidth product, input bias current, and input offset voltage specifications.

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

A: The TSB712IYST has a slew rate of 3 V/µs and gain bandwidth product of 6 MHz. The OPA2172IDGKR and TLV2172IDGKR both have slew rate of 10 V/µs and gain bandwidth product of 10 MHz. The TSB712IYST has input bias current of 300 nA and input offset voltage of 1.2 mV. The OPA2172IDGKR has input bias current of 8 pA and input offset voltage of 200 µV. The TLV2172IDGKR has input bias current of 10 pA and input offset voltage of 500 µV. The substitute parts provide higher output current per channel (75 mA versus 50 mA).

Q: Are all three parts automotive-qualified?

A: Yes. The TSB712IYST carries automotive-grade designation with AEC-Q100 qualification. Both OPA2172IDGKR and TLV2172IDGKR are also AEC-Q100 qualified and suitable for automotive applications.

Q: What is the difference between OPA2172IDGKR and TLV2172IDGKR?

A: Both parts are manufactured by Texas Instruments and share identical package, circuit count, output type, slew rate, and gain bandwidth product. The primary difference is input offset voltage: OPA2172IDGKR specifies 200 µV while TLV2172IDGKR specifies 500 µV. The OPA2172IDGKR also has lower input bias current (8 pA versus 10 pA). Selection between these two depends on the precision requirements of the application.

Q: Do all parts have the same moisture sensitivity level?

A: No. The TSB712IYST has Moisture Sensitivity Level (MSL) of 1 (Unlimited). Both OPA2172IDGKR and TLV2172IDGKR have MSL of 2 (1 Year). This affects storage and handling requirements.

Q: Are all parts RoHS compliant?

A: Yes. All three parts are ROHS3 compliant and REACH unaffected.