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TSV852IST Equivalent & Substitute Parts
Part Overview
The TSV852IST 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 currently in active production status. The TSV852IST is designed for low-power applications requiring dual-channel amplification across supply voltages from 2.5V to 5.5V.
Equivalent and substitute parts are identified based on matching functional characteristics including amplifier topology, circuit count, output type, package form factor, and electrical operating parameters. Substitutes enable design flexibility when the primary part is unavailable or when alternative sourcing is required while maintaining circuit performance within specified tolerances.
Substiute Parts
Key Parameters
| Parameter | TSV852IST Value | 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 | 0.7 | V/µs |
| Gain Bandwidth Product | 1.3 | MHz |
| Current - Input Bias | 27 | nA |
| Voltage - Input Offset | 4 | mV |
| Current - Supply | 130 (x2 Channels) | µA |
| Current - Output / Channel | 70 | mA |
| Voltage - Supply Span (Min) | 2.5 | V |
| Voltage - Supply Span (Max) | 5.5 | V |
| Operating Temperature | -40 to 125 | °C |
| Grade | Automotive | — |
| Qualification | AEC-Q100 | — |
| Mounting Type | Surface Mount | — |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitute parts for the TSV852IST are identified based on the following critical parameters that determine functional equivalence:
Primary Matching Criteria:
- Number of Circuits: 2 (dual-channel requirement)
- Output Type: Rail-to-Rail (voltage swing capability)
- Package / Case: 8-TSSOP or 8-MSOP form factor (physical compatibility)
- Mounting Type: Surface Mount (assembly compatibility)
- Voltage - Supply Span: Minimum 2.5V to Maximum 5.5V (operating range overlap)
- Operating Temperature: Support for -40°C to 125°C range (automotive thermal requirements)
Secondary Compatibility Parameters:
- Slew Rate: 0.7V/µs or greater (signal fidelity)
- Gain Bandwidth Product: 1 MHz or greater (frequency response)
- Current - Output / Channel: 30 mA or greater (load driving capability)
- Current - Supply: Acceptable range for low-power applications
- Input Bias Current and Input Offset Voltage: Within acceptable tolerances for general-purpose applications
Substitute parts are grouped into two categories: General Purpose Amplifiers (matching amplifier topology) and Alternative Topology Amplifiers (voltage feedback or CMOS variants offering different performance characteristics while maintaining functional compatibility).
Parameter Comparison
| Parameter | TSV852IST | AD8542ARMZ | AD8542ARMZ-REEL | AZV358MMTR-G1 | BU7242FVM-TR | BU7242SFVM-TR | LMV342IDGKR | LMV358DMR2G |
|---|---|---|---|---|---|---|---|---|
| Manufacturer | STMicroelectronics | Analog Devices Inc. | Analog Devices Inc. | Diodes Incorporated | Rohm Semiconductor | Rohm Semiconductor | Texas Instruments | onsemi |
| Amplifier Type | General Purpose | General Purpose | General Purpose | General Purpose | CMOS | CMOS | CMOS | Voltage Feedback |
| 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-VSSOP, 8-MSOP | 8-VSSOP, 8-MSOP | 8-TSSOP, 8-MSOP | 8-TSSOP, 8-MSOP |
| Slew Rate (V/µs) | 0.7 | 0.92 | 0.92 | 1 | 0.4 | 0.4 | 1 | 1 |
| Gain Bandwidth Product (MHz) | 1.3 | 1 | 1 | 1 | 0.9 | 0.9 | 1 | 1 |
| Current - Input Bias (nA) | 27 | 0.004 | 0.004 | 15 | 0.001 | 0.001 | 1 | 1 |
| Voltage - Input Offset (mV) | 4 | 1 | 1 | 1.7 | 1 | 1 | 0.25 | 1.7 |
| Current - Supply (µA, x2 Channels) | 130 | 45 | 45 | 210 | 180 | 180 | 107 | 100 |
| Current - Output / Channel (mA) | 70 | 30 | 30 | 60 | 12 | 12 | 113 | 160 |
| Voltage - Supply Span Min (V) | 2.5 | 2.7 | 2.7 | 2.7 | 1.8 | 1.8 | 2.5 | 2.7 |
| Voltage - Supply Span Max (V) | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 |
| Operating Temperature (°C) | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 85 | -40 to 85 | -40 to 105 | -40 to 125 | -40 to 85 |
| 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) | 3 (168 Hours) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
Engineering Selection Recommendations
Tier 1 - Direct Substitutes (General Purpose Amplifiers):
The AD8542ARMZ and AD8542ARMZ-REEL represent the closest functional equivalents to the TSV852IST. Both devices are general-purpose dual-channel amplifiers with rail-to-rail output, identical package specifications (8-TSSOP, 8-MSOP), and support the full -40°C to 125°C operating temperature range. The AD8542ARMZ-REEL variant offers significantly higher inventory availability (13,450 units) compared to the tube-packaged AD8542ARMZ (3,110 units). Both variants are ROHS3 compliant with MSL 1 rating and maintain compatibility with the TSV852IST's supply voltage range of 2.5V to 5.5V. The primary trade-off is reduced output current per channel (30 mA versus 70 mA) and lower supply current consumption (45 µA versus 130 µA).
Tier 2 - Compatible Substitutes (General Purpose / CMOS Variants):
The AZV358MMTR-G1 (Diodes Incorporated) and LMV342IDGKR (Texas Instruments) provide functional compatibility with the TSV852IST while offering enhanced performance characteristics. The AZV358MMTR-G1 maintains general-purpose amplifier topology with improved slew rate (1 V/µs) and higher output current capability (60 mA). However, this device is limited to -40°C to 85°C operating temperature and carries MSL 3 rating (168 hours), which may restrict use in automotive applications requiring extended thermal range. The LMV342IDGKR is a CMOS variant with superior input offset voltage (250 µV) and higher output current (113 mA), supporting the full -40°C to 125°C range with MSL 1 rating. Both devices are ROHS3 compliant and available in compatible 8-MSOP packages.
Tier 3 - Alternative Topology Substitutes:
The LMV358DMR2G (onsemi) is a voltage feedback amplifier offering the highest output current capability (160 mA) and lowest input bias current (1 nA). This device maintains rail-to-rail output, dual-circuit configuration, and compatible 8-MSOP packaging. However, the operating temperature range is limited to -40°C to 85°C, which excludes it from applications requiring the full automotive thermal specification of the TSV852IST.
The BU7242FVM-TR and BU7242SFVM-TR (Rohm Semiconductor) are CMOS amplifiers with extremely low input bias current (1 pA) and minimal supply current consumption (180 µA). The BU7242SFVM-TR variant extends the operating temperature to -40°C to 105°C. Both devices feature reduced output current (12 mA) and lower slew rate (0.4 V/µs), making them suitable for low-power, low-frequency applications. Package dimensions differ slightly (8-VSSOP, 2.80mm width versus 8-MSOP, 3.00mm width), requiring PCB layout verification.
Compliance and Certification Considerations:
The TSV852IST carries automotive-grade qualification (AEC-Q100) with operating temperature range -40°C to 125°C. Direct substitutes must maintain this thermal specification. The AD8542ARMZ and AD8542ARMZ-REEL satisfy this requirement. Substitutes with reduced temperature range (-40°C to 85°C) including AZV358MMTR-G1, BU7242FVM-TR, and LMV358DMR2G are suitable only for applications not requiring full automotive thermal compliance. All listed substitutes are ROHS3 compliant and REACH unaffected, matching the TSV852IST's environmental compliance status.
Frequently Asked Questions (FAQ)
Q: Can the AD8542ARMZ-REEL be used as a direct replacement for the TSV852IST in automotive applications?
A: The AD8542ARMZ-REEL is functionally compatible with the TSV852IST for automotive applications. Both devices support the -40°C to 125°C operating temperature range, carry ROHS3 compliance, and feature identical 8-MSOP package specifications. The primary performance difference is reduced output current per channel (30 mA versus 70 mA). Verify that the application's load current requirements do not exceed 30 mA per channel before substitution.
Q: What is the difference between the AD8542ARMZ and AD8542ARMZ-REEL?
A: Both devices are electrically identical general-purpose dual-channel amplifiers with identical electrical specifications. The difference is packaging format: AD8542ARMZ is supplied in tube packaging, while AD8542ARMZ-REEL is supplied in cut tape with digi-reel format. The AD8542ARMZ-REEL variant offers significantly higher inventory availability (13,450 units versus 3,110 units) and is suitable for high-volume production environments.
Q: Can I substitute the LMV358DMR2G for the TSV852IST?
A: The LMV358DMR2G is electrically compatible with the TSV852IST in terms of dual-circuit configuration, rail-to-rail output, and 8-MSOP package compatibility. However, the LMV358DMR2G is limited to -40°C to 85°C operating temperature, which does not meet the TSV852IST's automotive specification of -40°C to 125°C. Use this substitute only in applications where the reduced temperature range is acceptable.
Q: Why do some substitutes have different package dimensions (8-VSSOP versus 8-MSOP)?
A: The BU7242FVM-TR and BU7242SFVM-TR use 8-VSSOP packaging with 2.80mm width, compared to the TSV852IST's 8-MSOP packaging with 3.00mm width. While both are 8-pin surface-mount packages with identical pin pitch, the physical dimensions differ. PCB layout verification is required to confirm that the narrower package width does not create routing conflicts or thermal management issues in the target application.
Q: What is the significance of MSL (Moisture Sensitivity Level) rating?
A: MSL rating indicates the maximum time a component can be exposed to ambient conditions (typically 30°C, 85% relative humidity) before soldering. MSL 1 (unlimited) components have no time restriction and are suitable for all manufacturing environments. The AZV358MMTR-G1 carries MSL 3 (168 hours), requiring controlled storage and handling to prevent moisture absorption that could cause solder joint failures. For high-reliability automotive applications, MSL 1 rated components are preferred.
Q: Can I use the BU7242 series for high-frequency applications?
A: The BU7242FVM-TR and BU7242SFVM-TR are not suitable for high-frequency applications. These CMOS amplifiers feature a gain bandwidth product of 900 kHz and slew rate of 0.4 V/µs, compared to the TSV852IST's 1.3 MHz bandwidth and 0.7 V/µs slew rate. Use these devices only in low-frequency, low-power applications where minimal supply current consumption is the primary design objective.
Q: What are the key electrical differences between general-purpose and voltage feedback amplifier topologies?
A: General-purpose amplifiers (TSV852IST, AD8542ARMZ, AZV358MMTR-G1) are optimized for versatile applications with moderate bandwidth and slew rate. Voltage feedback amplifiers (LMV358DMR2G, AD8062ARMZ) prioritize higher bandwidth and slew rate performance at the cost of increased supply current. For the TSV852IST's application space, general-purpose topology substitutes are preferred unless higher-frequency performance is required.
Q: Is the TSV852IST's automotive grade (AEC-Q100) qualification important for my application?
A: AEC-Q100 qualification indicates the device has undergone rigorous automotive-grade testing including thermal cycling, electrostatic discharge, and reliability screening. If your application is deployed in automotive environments or requires equivalent reliability standards, select substitutes that maintain AEC-Q100 qualification or equivalent automotive-grade certification. The AD8542ARMZ and AD8542ARMZ-REEL are suitable alternatives. Substitutes without automotive qualification (such as AZV358MMTR-G1) are acceptable only for non-automotive applications.
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