TSB572IST Equivalent & Substitute Parts

Part Overview

The TSB572IST 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 product with automotive-grade qualification (AEC-Q100) and operates across an extended temperature range of -40°C to 125°C. The TSB572IST is supplied in 8-MiniSO packaging with Cut Tape and Digi-Reel options.

Substitute parts are identified when equivalent functional performance can be achieved within the specified electrical and mechanical parameters, particularly when the primary part becomes unavailable or when alternative packaging formats are required for specific manufacturing processes.

Substiute Parts

TSB572IST

STMicroelectronicsIn Stock: 2153TSB572IST Datasheet

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AD822ARMZ

Analog Devices Inc.In Stock: 1403AD822ARMZ Datasheet

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AD822ARMZ-REEL

Analog Devices Inc.In Stock: 10090AD822ARMZ-REEL Datasheet

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OPA2170AIDGK

Texas InstrumentsIn Stock: 2162OPA2170AIDGK Datasheet

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OPA2170AIDGKR

Texas InstrumentsIn Stock: 42049OPA2170AIDGKR Datasheet

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TLV2170IDGKR

Texas InstrumentsIn Stock: 2620TLV2170IDGKR Datasheet

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TLV2170IDGKT

Texas InstrumentsIn Stock: 18330TLV2170IDGKT Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the TSB572IST is determined by compatibility across the following critical parameters:

Functional Requirements:

• Amplifier Type: General Purpose
• Output Type: Rail-to-Rail
• Number of Circuits: 2 (primary requirement)
• Mounting Type: Surface Mount

Electrical Compatibility Criteria:

• Voltage Supply Span: Minimum 4V to Maximum 36V (substitute must support this range or a subset within it)
• Operating Temperature: -40°C to 125°C (substitute must support this range or a subset within it)
• Package / Case: 8-TSSOP, 8-MSOP form factor with 0.118" width, 3.00mm

Compliance & Certification:

• RoHS3 Compliant
• REACH Unaffected
• Moisture Sensitivity Level: 1 (Unlimited)

Substitute parts are grouped into two categories based on circuit count:

Category A - Dual Circuit Substitutes (2 Circuits): These parts maintain the same circuit count as the TSB572IST and provide direct functional equivalence: AD822ARMZ, AD822ARMZ-REEL, OPA2170AIDGK, OPA2170AIDGKR, and TLV2170IDGKT.

Category B - Single Circuit Substitute (1 Circuit): The TLV2170IDGKR contains a single circuit and is suitable only for applications requiring one operational amplifier per package: TLV2170IDGKR.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement with Dual Circuits:

The OPA2170AIDGKR and OPA2170AIDGK (Texas Instruments) are the preferred substitutes when the TSB572IST is unavailable. Both devices maintain the full operating temperature range of -40°C to 125°C, support the maximum supply voltage of 36V, and provide dual rail-to-rail circuits in the same 8-MSOP package footprint. The OPA2170AIDGKR variant is available in Cut Tape and Digi-Reel packaging, matching the TSB572IST distribution format. Both variants are ROHS3 compliant and REACH unaffected.

The TLV2170IDGKT (Texas Instruments) provides an alternative dual-circuit substitute with identical temperature range and supply voltage specifications. This part is available in Tape & Reel packaging and maintains full compliance with RoHS3 and REACH requirements.

For Applications with Reduced Temperature Requirements:

The AD822ARMZ and AD822ARMZ-REEL (Analog Devices Inc.) are suitable substitutes for applications operating within the -40°C to 85°C temperature range. These devices provide dual circuits with higher slew rate performance (3V/µs) and lower input offset voltage (400µV). The AD822ARMZ-REEL variant offers Cut Tape and Digi-Reel packaging. Both variants are ROHS3 compliant and REACH unaffected. Note that the maximum supply voltage is limited to 30V with these devices.

For Single-Circuit Applications:

The TLV2170IDGKR (Texas Instruments) is applicable only when a single operational amplifier per package is required. This device maintains the full operating temperature range and supply voltage specifications of the TSB572IST but contains only one circuit. It is ROHS3 compliant and REACH unaffected.

Compliance Considerations:

All identified substitute parts maintain ROHS3 compliance and REACH unaffected status. The TSB572IST carries automotive-grade qualification (AEC-Q100); substitute parts should be evaluated for automotive qualification requirements in specific applications. The OPA2170 and TLV2170 series from Texas Instruments support the full -40°C to 125°C operating range, matching the TSB572IST specification. The AD822 series from Analog Devices is limited to -40°C to 85°C operation.

Frequently Asked Questions (FAQ)

Q: Can the AD822ARMZ be used as a direct replacement for the TSB572IST in all applications?

A: The AD822ARMZ is functionally equivalent for applications operating within the -40°C to 85°C temperature range. However, it is not suitable for applications requiring operation above 85°C, as the TSB572IST supports temperatures up to 125°C. Additionally, the AD822ARMZ maximum supply voltage is 30V, compared to 36V for the TSB572IST. Verify application temperature and supply voltage requirements before substitution.

Q: What is the primary difference between OPA2170AIDGK and OPA2170AIDGKR?

A: Both devices are electrically identical. The primary difference is packaging format. The OPA2170AIDGK is supplied in Tube packaging, while the OPA2170AIDGKR is supplied in Cut Tape and Digi-Reel format. Select based on manufacturing process requirements and inventory management practices.

Q: Why is the TLV2170IDGKR listed as a substitute if it contains only one circuit?

A: The TLV2170IDGKR is included for applications where a single operational amplifier per package is required. It is not a direct replacement for dual-circuit applications but serves as an alternative for designs that can accommodate single-circuit packages. The TLV2170IDGKT provides the dual-circuit equivalent.

Q: Are all substitute parts automotive-qualified?

A: The TSB572IST carries AEC-Q100 automotive qualification. The substitute parts listed (AD822ARMZ, AD822ARMZ-REEL, OPA2170AIDGK, OPA2170AIDGKR, TLV2170IDGKR, and TLV2170IDGKT) are not explicitly identified as automotive-qualified in the provided specifications. Automotive applications requiring AEC-Q100 qualification should verify qualification status with the respective manufacturers before substitution.

Q: What are the key electrical differences between the TSB572IST and OPA2170 series?

A: The TSB572IST has a slew rate of 1V/µs and gain bandwidth product of 2.2MHz, while the OPA2170 series has a slew rate of 0.4V/µs and gain bandwidth product of 1.2MHz. The TSB572IST also has higher input bias current (8nA) and higher input offset voltage (1.5mV) compared to the OPA2170 series (8pA and 250µV, respectively). The OPA2170 series provides lower noise and offset characteristics but reduced slew rate performance. Select based on application bandwidth and slew rate requirements.

Q: Can the TSB572IST be substituted with the TLV2170IDGKR in a dual-amplifier circuit?

A: No. The TLV2170IDGKR contains only one circuit, while the TSB572IST contains two circuits. Two TLV2170IDGKR packages would be required to replace one TSB572IST in a dual-amplifier application. For dual-circuit substitution, use TLV2170IDGKT, OPA2170AIDGK, OPA2170AIDGKR, AD822ARMZ, or AD822ARMZ-REEL.

Q: What is the moisture sensitivity level difference between the TSB572IST and substitute parts?

A: The TSB572IST has MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. The OPA2170 and TLV2170 series have MSL 2 (1 Year), requiring storage in controlled humidity conditions and limiting shelf life to one year from the date of manufacture. The AD822 series maintains MSL 1 (Unlimited). Consider storage and handling requirements when selecting substitutes.

Q: Are all substitute parts available in the same 8-MiniSO package as the TSB572IST?

A: The TSB572IST is supplied in 8-MiniSO packaging. Substitute parts use 8-MSOP or 8-VSSOP packages, which are mechanically compatible with the same 0.118" width and 3.00mm footprint. Verify PCB layout compatibility with the specific package variant before substitution, as pin configurations may differ between manufacturers.