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TS1874AIYPT Equivalent & Substitute Parts
Part Overview
The TS1874AIYPT is a general-purpose operational amplifier manufactured by STMicroelectronics, configured as a 4-circuit rail-to-rail amplifier in a 14-TSSOP surface mount package. This device is qualified to AEC-Q100 automotive standards and operates across a supply voltage range of 1.8 V to 6 V with an operating temperature range of -40°C to 125°C. The part is active in production status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1).
Equivalent and substitute parts are identified based on matching functional characteristics: 4-circuit general-purpose amplifier topology, rail-to-rail output configuration, 14-TSSOP package geometry, and compatible electrical operating parameters. Substitutes are selected from manufacturers including Analog Devices Inc., ensuring pin-compatible surface mount packages and overlapping electrical specifications.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer | STMicroelectronics | — |
| Part Number | TS1874AIYPT | — |
| Category | Linear, Amplifiers | — |
| Amplifier Type | General Purpose | — |
| Number of Circuits | 4 | — |
| Output Type | Rail-to-Rail | — |
| Package / Case | 14-TSSOP (0.173", 4.40mm Width) | — |
| Mounting Type | Surface Mount | — |
| Voltage - Supply Span (Min) | 1.8 | V |
| Voltage - Supply Span (Max) | 6 | V |
| Operating Temperature | -40 to 125 | °C |
| Slew Rate | 0.6 | V/µs |
| Gain Bandwidth Product | 1.8 | MHz |
| Current - Input Bias | 70 | nA |
| Voltage - Input Offset | 1 | mV |
| Current - Supply (x4 Channels) | 500 | µA |
| Current - Output / Channel | 80 | mA |
| Grade | Automotive | — |
| Qualification | AEC-Q100 | — |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | — |
| Product Status | Active | — |
Substitute Part Grouping Explanation
Substitute parts for the TS1874AIYPT are grouped based on the following critical parameters that determine functional equivalence:
Primary Matching Criteria:
- Number of Circuits: 4 independent amplifier channels
- Output Type: Rail-to-rail output configuration
- Package / Case: 14-TSSOP surface mount package with 0.173" width (4.40mm)
- Mounting Type: Surface mount technology
- Supply Voltage Compatibility: Overlapping minimum and maximum supply voltage ranges
Secondary Compatibility Factors:
- Operating Temperature Range: Minimum -40°C and maximum temperature support
- Slew Rate: Performance metric affecting signal fidelity
- Gain Bandwidth Product: Frequency response characteristic
- Current - Output / Channel: Load-driving capability
- Current - Supply: Power consumption profile
- Input Bias Current and Input Offset Voltage: DC precision parameters
Substitutes are classified into two categories based on amplifier technology type: General Purpose amplifiers (AD8534 series) and CMOS amplifiers (AD8604, AD8608 series). Within each category, variants are differentiated by packaging format (Tube or Cut Tape & Digi-Reel®).
Parameter Comparison
| Parameter | TS1874AIYPT | AD8534ARUZ | AD8534ARUZ-REEL | AD8544ARUZ | AD8544ARUZ-REEL | AD8604ARUZ | AD8604ARUZ-REEL | AD8604DRUZ | AD8604DRUZ-REEL | AD8608ARUZ | AD8608ARUZ-REEL |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | STMicroelectronics | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. |
| Number of Circuits | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
| 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 | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail |
| Package / Case | 14-TSSOP (0.173", 4.40mm) | 14-TSSOP (0.173", 4.40mm) | 14-TSSOP (0.173", 4.40mm) | 14-TSSOP (0.173", 4.40mm) | 14-TSSOP (0.173", 4.40mm) | 14-TSSOP (0.173", 4.40mm) | 14-TSSOP (0.173", 4.40mm) | 14-TSSOP (0.173", 4.40mm) | 14-TSSOP (0.173", 4.40mm) | 14-TSSOP (0.173", 4.40mm) | 14-TSSOP (0.173", 4.40mm) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Voltage - Supply Span (Min) | 1.8 V | 2.7 V | 2.7 V | 2.7 V | 2.7 V | 2.7 V | 2.7 V | 2.7 V | 2.7 V | 2.7 V | 2.7 V |
| Voltage - Supply Span (Max) | 6 V | 6 V | 6 V | 5.5 V | 5.5 V | 5.5 V | 5.5 V | 5.5 V | 5.5 V | 5.5 V | 5.5 V |
| Operating Temperature (Min) | -40°C | -40°C | -40°C | -40°C | -40°C | -40°C | -40°C | -40°C | -40°C | -40°C | -40°C |
| Operating Temperature (Max) | 125°C | 85°C | 85°C | 125°C | 125°C | 125°C | 125°C | 125°C | 125°C | 125°C | 125°C |
| Slew Rate | 0.6 V/µs | 5 V/µs | 5 V/µs | 0.92 V/µs | 0.92 V/µs | 6 V/µs | 6 V/µs | 6 V/µs | 6 V/µs | 5 V/µs | 5 V/µs |
| Gain Bandwidth Product | 1.8 MHz | 3 MHz | 3 MHz | 1 MHz | 1 MHz | 8.4 MHz | 8.4 MHz | 8.4 MHz | 8.4 MHz | 10 MHz | 10 MHz |
| Current - Input Bias | 70 nA | 5 pA | 5 pA | 4 pA | 4 pA | 0.2 pA | 0.2 pA | 0.2 pA | 0.2 pA | 1 pA | 1 pA |
| Voltage - Input Offset | 1 mV | 25 mV | 25 mV | 1 mV | 1 mV | 80 µV | 80 µV | 1.3 mV | 1.3 mV | 80 µV | 80 µV |
| Current - Supply (x4 Channels) | 500 µA | 750 µA | 750 µA | 45 µA | 45 µA | 750 µA | 750 µA | 750 µA | 750 µA | 1 mA | 1 mA |
| Current - Output / Channel | 80 mA | 250 mA | 250 mA | 30 mA | 30 mA | 50 mA | 50 mA | 50 mA | 50 mA | 80 mA | 80 mA |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | 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) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| Product Status | Active | Active | Active | Active | Active | Active | Active | Active | Active | Active | Active |
Engineering Selection Recommendations
All listed substitute parts maintain active production status and ROHS3 compliance, ensuring regulatory alignment with the TS1874AIYPT. The selection of an appropriate substitute depends on specific application requirements within the following constraints:
Supply Voltage Compatibility: The TS1874AIYPT operates at a minimum supply voltage of 1.8 V, which is lower than all Analog Devices substitutes (minimum 2.7 V). Applications requiring operation below 2.7 V cannot use these substitutes. For applications operating at 2.7 V or higher, all listed substitutes are compatible within their respective maximum supply voltage ratings (5.5 V to 6 V).
Operating Temperature Range: The TS1874AIYPT supports operation to 125°C maximum temperature. AD8534ARUZ and AD8534ARUZ-REEL are limited to 85°C maximum, making them unsuitable for high-temperature automotive applications. All other substitutes (AD8544, AD8604, AD8608 series) support the full -40°C to 125°C range.
Packaging Format: Tube packaging (ARUZ, DRUZ designations) and Cut Tape & Digi-Reel® packaging (ARUZ-REEL, DRUZ-REEL designations) are functionally equivalent. Selection between these formats depends on procurement and assembly workflow requirements.
Amplifier Technology: General Purpose amplifiers (AD8534, AD8544 series) provide direct functional equivalence to the TS1874AIYPT. CMOS amplifiers (AD8604, AD8608 series) offer enhanced performance characteristics including lower input bias current and higher gain bandwidth product, suitable for precision signal conditioning applications.
Performance Trade-offs: AD8544 series offers the lowest supply current (45 µA total) but provides reduced output current capability (30 mA per channel) and lower gain bandwidth product (1 MHz). AD8604 and AD8608 series provide higher slew rates and gain bandwidth products, beneficial for wideband signal processing. AD8534 series offers the highest output current capability (250 mA per channel) for driving heavy loads.
Frequently Asked Questions (FAQ)
Q: Can AD8534ARUZ be used in an automotive application requiring 125°C operation?
A: No. The AD8534ARUZ is rated for maximum operating temperature of 85°C, which does not meet the 125°C requirement. Use AD8544ARUZ, AD8544ARUZ-REEL, AD8604 series, or AD8608 series instead.
Q: What is the difference between AD8604ARUZ and AD8604DRUZ?
A: Both parts are CMOS amplifiers in 14-TSSOP packages with identical electrical performance specifications. The primary difference is the input offset voltage specification: AD8604ARUZ specifies 80 µV, while AD8604DRUZ specifies 1.3 mV. Both are available in Tube and Cut Tape & Digi-Reel® packaging formats.
Q: Can I substitute TS1874AIYPT with AD8544ARUZ-REEL in a 1.8 V supply application?
A: No. The AD8544ARUZ-REEL has a minimum supply voltage of 2.7 V and cannot operate at 1.8 V. The TS1874AIYPT is the only part in this list supporting 1.8 V minimum supply voltage.
Q: Are all substitute parts pin-compatible with the TS1874AIYPT?
A: Yes. All substitute parts use the 14-TSSOP package with 0.173" width (4.40mm), which is pin-compatible for surface mount assembly. No PCB layout modifications are required for package substitution.
Q: Which substitute offers the best low-power performance?
A: The AD8544 series (both ARUZ and ARUZ-REEL) offers the lowest total supply current at 45 µA across all four channels. This makes it suitable for battery-powered applications where power consumption is critical.
Q: What is the difference between Tube and Cut Tape & Digi-Reel® packaging?
A: Tube packaging (ARUZ, DRUZ) is used for manual component handling and smaller production volumes. Cut Tape & Digi-Reel® packaging (ARUZ-REEL, DRUZ-REEL) is used for automated assembly equipment and higher production volumes. Electrical performance is identical between packaging formats.
Q: Can AD8604DRUZ-REEL replace TS1874AIYPT in all applications?
A: AD8604DRUZ-REEL is compatible for applications operating at supply voltages between 2.7 V and 5.5 V and temperatures between -40°C and 125°C. It cannot be used in applications requiring 1.8 V minimum supply voltage operation. For all other specifications, it provides equivalent or superior performance.
Q: Which substitute has the highest output current capability?
A: The AD8534ARUZ and AD8534ARUZ-REEL provide the highest output current per channel at 250 mA, compared to 80 mA for the TS1874AIYPT. This makes them suitable for applications requiring high-current load driving.
Q: Are all substitute parts ROHS3 compliant?
A: Yes. All listed substitute parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level, matching the environmental compliance profile of the TS1874AIYPT.
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