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TSV992IYST Equivalent & Substitute Parts
Part Overview
The TSV992IYST is a general-purpose operational amplifier manufactured by STMicroelectronics, featuring dual circuits in an 8-MiniSO surface-mount package. This device is classified as a rail-to-rail output amplifier with automotive-grade qualification (AEC-Q100) and is actively produced. The TSV992IYST operates across a supply voltage range of 2.5 V to 5.5 V and maintains performance across the extended automotive temperature range of -40°C to 125°C.
Equivalent and substitute parts are identified based on matching functional categories, package compatibility, electrical performance parameters, and operational specifications. Substitute components must maintain compatibility with the 8-MSOP/8-TSSOP package form factor and support the same supply voltage and temperature operating ranges to ensure direct replacement capability in circuit applications.
Substiute Parts
Key Parameters
| Parameter | TSV992IYST | Unit |
|---|---|---|
| Amplifier Type | General Purpose | — |
| Number of Circuits | 2 | — |
| Output Type | Rail-to-Rail | — |
| Package / Case | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | — |
| Slew Rate | 10 | V/µs |
| Gain Bandwidth Product | 20 | MHz |
| Current - Input Bias | 1 | pA |
| Voltage - Input Offset | 100 | µV |
| Current - Supply (x2 Channels) | 820 | µA |
| Current - Output / Channel | 35 | mA |
| Voltage - Supply Span (Min) | 2.5 | V |
| Voltage - Supply Span (Max) | 5.5 | V |
| Operating Temperature | -40 to 125 | °C |
| Mounting Type | Surface Mount | — |
| Grade | Automotive | — |
| Qualification | AEC-Q100 | — |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitute parts for the TSV992IYST are identified based on the following critical parameters:
Primary Compatibility Criteria:
- Package form factor: 8-MSOP or 8-TSSOP (0.118", 3.00mm Width)
- Number of circuits: 2
- Output type: Rail-to-Rail
- Supply voltage range: Minimum 2.5 V to maximum 5.5 V
- Operating temperature range: -40°C to 125°C
- Surface-mount technology
- RoHS3 compliance and MSL Level 1
Functional Categories: Substitutes are grouped into two functional categories: General Purpose amplifiers and CMOS amplifiers. General Purpose amplifiers maintain similar gain-bandwidth characteristics and slew rates suitable for standard signal conditioning applications. CMOS amplifiers offer ultra-low input bias current and reduced power consumption while maintaining rail-to-rail output capability.
Voltage Feedback amplifiers (AD8062 series) represent a higher-performance alternative with significantly increased bandwidth and slew rate, suitable for applications requiring enhanced frequency response, though with different amplifier topology and higher supply current requirements.
Parameter Comparison
| Parameter | TSV992IYST | AD8542ARMZ | AD8542ARMZ-REEL | AD8602ARMZ | AD8602DRMZ-REEL | AD8606ARMZ-R7 | AD8606ARMZ-REEL | AD8646ARMZ | Unit |
|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | STMicroelectronics | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | — |
| Amplifier Type | General Purpose | General Purpose | General Purpose | CMOS | CMOS | CMOS | CMOS | General Purpose | — |
| Number of Circuits | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | — |
| Output Type | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | — |
| Package / Case | 8-TSSOP, 8-MSOP | 8-TSSOP, 8-MSOP | 8-TSSOP, 8-MSOP | 8-TSSOP, 8-MSOP | 8-TSSOP, 8-MSOP | 8-TSSOP, 8-MSOP | 8-TSSOP, 8-MSOP | 8-TSSOP, 8-MSOP | — |
| Slew Rate | 10 | 0.92 | 0.92 | 6 | 6 | 5 | 5 | 11 | V/µs |
| Gain Bandwidth Product | 20 | 1 | 1 | 8.4 | 8.4 | 10 | 10 | 24 | MHz |
| Current - Input Bias | 1 | 4 | 4 | 0.2 | 0.2 | 1 | 1 | 0.3 | pA |
| Voltage - Input Offset | 100 | 1 | 1 | 80 | 1.3 | 80 | 80 | 600 | µV |
| Current - Supply (x2 Channels) | 820 | 45 | 45 | 750 | 750 | 1000 | 1000 | 1500 | µA |
| Current - Output / Channel | 35 | 30 | 30 | 50 | 50 | 80 | 80 | 120 | mA |
| Voltage - Supply Span (Min) | 2.5 | 2.7 | 2.7 | 2.7 | 2.7 | 2.7 | 2.7 | 2.7 | V |
| Voltage - Supply Span (Max) | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | V |
| Operating Temperature | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | °C |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | — |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | — |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | — |
Engineering Selection Recommendations
Direct Substitutes (General Purpose Category):
The AD8542ARMZ and AD8542ARMZ-REEL are direct functional equivalents to the TSV992IYST. Both devices maintain identical supply voltage ranges (2.7 V to 5.5 V), full operating temperature span (-40°C to 125°C), and identical package specifications. These parts are suitable for applications where the TSV992IYST is specified and require no circuit redesign. The AD8542 series exhibits lower supply current (45 µA versus 820 µA) and reduced input offset voltage (1 mV versus 100 µV), making them advantageous for power-sensitive applications. The primary trade-off is reduced slew rate (0.92 V/µs versus 10 V/µs) and lower gain-bandwidth product (1 MHz versus 20 MHz), which limits their use to lower-frequency signal conditioning applications.
CMOS Alternatives (Ultra-Low Input Bias Current):
The AD8602ARMZ, AD8602DRMZ-REEL, AD8606ARMZ-R7, and AD8606ARMZ-REEL represent CMOS-based alternatives offering ultra-low input bias current (0.2 to 1 pA) compared to the TSV992IYST (1 pA). These devices are suitable for high-impedance sensor interfaces and precision measurement circuits. The AD8606 series provides enhanced performance with 10 MHz gain-bandwidth product and 5 V/µs slew rate, positioning it as a performance-enhanced substitute. All CMOS alternatives maintain full automotive temperature range operation (-40°C to 125°C) and identical package compatibility.
Higher-Performance Alternative:
The AD8646ARMZ offers the highest performance profile with 24 MHz gain-bandwidth product and 11 V/µs slew rate, exceeding the TSV992IYST specifications. This device is suitable for applications requiring enhanced frequency response and faster transient response while maintaining the same package form factor and full temperature range operation.
All listed substitutes are active products with RoHS3 compliance and MSL Level 1 rating, ensuring long-term availability and environmental compliance.
Frequently Asked Questions (FAQ)
Q: Can the AD8542ARMZ directly replace the TSV992IYST in existing circuit designs?
A: The AD8542ARMZ is mechanically and electrically compatible with the TSV992IYST, sharing identical package specifications (8-MSOP), supply voltage range (2.7 V to 5.5 V minimum, 5.5 V maximum), and operating temperature range (-40°C to 125°C). Direct substitution is possible without PCB modifications. However, circuit performance will differ due to reduced slew rate (0.92 V/µs versus 10 V/µs) and lower gain-bandwidth product (1 MHz versus 20 MHz). Applications operating at frequencies below 1 MHz will experience no functional impact.
Q: What is the primary advantage of CMOS amplifiers (AD8602, AD8606 series) over the TSV992IYST?
A: CMOS amplifiers offer ultra-low input bias current (0.2 to 1 pA) compared to the TSV992IYST (1 pA), making them superior for high-impedance sensor applications where input bias current introduces measurement error. CMOS devices also provide significantly reduced supply current consumption (750 µA to 1 mA versus 820 µA), beneficial for battery-powered systems. The trade-off involves different input offset voltage characteristics and amplifier topology.
Q: Are all substitute parts qualified for automotive applications?
A: The TSV992IYST carries automotive-grade qualification (AEC-Q100) and operates across the extended automotive temperature range (-40°C to 125°C). The listed Analog Devices substitutes maintain identical temperature range specifications (-40°C to 125°C) and RoHS3 compliance. However, automotive qualification status is not explicitly stated for the substitute parts in the provided specifications. Verification of automotive qualification requirements should be performed against specific application standards.
Q: What packaging options are available for substitute parts?
A: Substitute parts are available in multiple packaging formats: Tube, Cut Tape (CT) & Digi-Reel®, and Tape & Reel (TR). The TSV992IYST is supplied in Tape & Reel format. The AD8542ARMZ-REEL, AD8606ARMZ-R7, and AD8606ARMZ-REEL are available in Cut Tape & Digi-Reel® or Tape & Reel formats, suitable for high-volume manufacturing. Tube packaging (AD8542ARMZ, AD8602ARMZ, AD8646ARMZ) is appropriate for lower-volume or prototype applications. All packaging options maintain identical electrical specifications and 8-MSOP form factor.
Q: How do slew rate and gain-bandwidth product differences affect circuit performance?
A: Slew rate determines the maximum rate of output voltage change, limiting performance in high-frequency or high-amplitude signal applications. The TSV992IYST (10 V/µs) supports faster transient response than AD8542 (0.92 V/µs) but slower than AD8646 (11 V/µs). Gain-bandwidth product defines the frequency range where the amplifier maintains specified gain. The TSV992IYST (20 MHz) is suitable for applications up to approximately 20 MHz, while AD8542 (1 MHz) is limited to lower-frequency applications. Selection depends on the specific frequency content and amplitude requirements of the target application.
Q: What is the significance of input offset voltage differences among substitute parts?
A: Input offset voltage represents the DC error present at the amplifier output when both inputs are at the same potential. The TSV992IYST exhibits 100 µV offset, while substitutes range from 1 mV (AD8542) to 600 µV (AD8646). Lower offset voltage reduces DC error in precision measurement circuits. For AC-coupled applications or circuits with offset nulling capability, these differences have minimal impact. For direct DC measurement applications, lower offset voltage substitutes (AD8542, AD8602) provide superior accuracy.
Q: Are all substitute parts available in equivalent inventory quantities?
A: Inventory availability varies among substitute parts. The TSV992IYST has 1,370 units in stock. Among substitutes, AD8062ARMZ-R7 offers the highest availability (36,855 units), while AD8606ARMZ-R7 has the lowest (2,100 units). Packaging format affects availability; Cut Tape & Digi-Reel® formats typically have higher stock levels than Tube packaging. Specific application requirements and production volume should guide packaging and supplier selection.
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