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TLE2142QDRQ1 Equivalent & Substitute Parts
Part Overview
The TLE2142QDRQ1 is a general-purpose operational amplifier manufactured by Texas Instruments, featuring dual circuits in an 8-SOIC surface-mount package. This device operates across a wide supply voltage range of 4V to 44V with rail-to-rail output capability, making it suitable for automotive and industrial applications. The part carries AEC-Q100 automotive qualification and is compliant with ROHS3 standards. Substitute parts are identified to address inventory availability, specific performance requirements, or packaging preferences while maintaining functional compatibility within defined electrical and mechanical parameters.
Substiute Parts
Key Parameters
| Parameter | TLE2142QDRQ1 | Unit |
|---|---|---|
| Amplifier Type | General Purpose | — |
| Number of Circuits | 2 | — |
| Output Type | Rail-to-Rail | — |
| Slew Rate | 45 | V/µs |
| Gain Bandwidth Product | 5.9 | MHz |
| Current - Input Bias | 700 | nA |
| Voltage - Input Offset | 290 | µV |
| Current - Supply (x2 Channels) | 6.9 | mA |
| Current - Output / Channel | 50 | mA |
| Voltage - Supply Span (Min) | 4 | V |
| Voltage - Supply Span (Max) | 44 | V |
| Operating Temperature | -40 to 125 | °C |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | — |
| Mounting Type | Surface Mount | — |
| Grade | Automotive | — |
| Qualification | AEC-Q100 | — |
| RoHS Status | ROHS3 Compliant | — |
Substitute Part Grouping Explanation
Substitute parts for the TLE2142QDRQ1 are identified based on the following critical parameters that determine functional compatibility:
Package Compatibility: All substitute parts utilize the 8-SOIC (0.154", 3.90mm Width) surface-mount package, ensuring mechanical and electrical pin compatibility.
Circuit Configuration: All substitutes feature dual-circuit (2 circuit) operational amplifiers, matching the TLE2142QDRQ1 configuration.
Operating Temperature Range: All substitute parts operate across the -40°C to 125°C temperature range, maintaining thermal compatibility.
Supply Voltage Overlap: Substitute parts maintain minimum supply voltage requirements between 3V and 10V, with maximum ratings between 30V and 44V. The TLE2142QDRQ1 operates from 4V to 44V; substitutes with lower minimum ratings (3V or 8V) and comparable maximum ratings provide functional compatibility within the original operating window.
Amplifier Type Variations: Substitutes include both general-purpose and J-FET amplifier types. General-purpose substitutes (ADA4075-2ARZ series, LM2904VDR2G) maintain the same amplifier classification as the main part. J-FET substitutes (AD8512ARZ series, ADA4000-2ARZ series) offer alternative input stage architectures with different bias current and offset voltage characteristics.
Compliance and Certification: All substitute parts are ROHS3 compliant, REACH unaffected, and carry EAR99 ECCN classification, matching the regulatory status of the TLE2142QDRQ1.
Parameter Comparison
| Parameter | TLE2142QDRQ1 | AD8512ARZ | AD8512ARZ-REEL | AD8512ARZ-REEL7 | ADA4000-2ARZ | ADA4000-2ARZ-R7 | ADA4000-2ARZ-RL | ADA4075-2ARZ | ADA4075-2ARZ-R7 | ADA4075-2ARZ-RL | LM2904VDR2G |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | Texas Instruments | 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. | onsemi |
| Amplifier Type | General Purpose | J-FET | J-FET | J-FET | J-FET | J-FET | J-FET | General Purpose | General Purpose | General Purpose | General Purpose |
| Number of Circuits | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Slew Rate (V/µs) | 45 | 20 | 20 | 20 | 20 | 20 | 20 | 12 | 12 | 12 | — |
| Gain Bandwidth Product (MHz) | 5.9 | 8 | 8 | 8 | 5 | 5 | 5 | 6.5 | 6.5 | 6.5 | 1 |
| Current - Input Bias (nA) | 700 | 0.025 | 0.025 | 0.025 | 0.005 | 0.005 | 0.005 | 30 | 30 | 30 | 45 |
| Voltage - Input Offset (µV) | 290 | 100 | 100 | 100 | 200 | 200 | 200 | 200 | 200 | 200 | 7000 |
| Current - Supply (mA, x2 Channels) | 6.9 | 2.2 | 2.2 | 2.2 | 1.35 | 1.35 | 1.35 | 1.8 | 1.8 | 1.8 | 1.5 |
| Current - Output / Channel (mA) | 50 | 70 | 70 | 70 | 28 | 28 | 28 | 40 | 40 | 40 | 40 |
| Voltage - Supply Span Min (V) | 4 | 10 | 10 | 10 | 8 | 8 | 8 | 9 | 9 | 9 | 3 |
| Voltage - Supply Span Max (V) | 44 | 30 | 30 | 30 | 36 | 36 | 36 | 36 | 36 | 36 | 32 |
| Operating Temperature (°C) | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | 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 | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
Engineering Selection Recommendations
General-Purpose Amplifier Substitutes (Recommended for Direct Replacement)
The ADA4075-2ARZ series (including ADA4075-2ARZ, ADA4075-2ARZ-R7, and ADA4075-2ARZ-RL) maintains the same general-purpose amplifier classification as the TLE2142QDRQ1. These parts operate within the supply voltage window of the original device (9V to 36V overlaps with 4V to 44V), feature comparable gain-bandwidth product (6.5 MHz versus 5.9 MHz), and deliver equivalent output current capability (40 mA per channel). All variants are ROHS3 compliant and carry identical regulatory classifications. The primary distinction is packaging format: standard tube (ADA4075-2ARZ), cut tape with reel (ADA4075-2ARZ-R7), or tape and reel (ADA4075-2ARZ-RL).
The LM2904VDR2G from onsemi is a general-purpose dual operational amplifier in 8-SOIC packaging with ROHS3 compliance. This part operates from 3V to 32V, providing broader low-voltage capability than the TLE2142QDRQ1. However, the maximum supply voltage (32V) is lower than the original part's 44V rating. The LM2904VDR2G exhibits significantly lower gain-bandwidth product (1 MHz) and higher input offset voltage (7 mV), making it suitable only for applications where these performance reductions are acceptable.
J-FET Amplifier Substitutes (Alternative Input Stage Architecture)
The AD8512ARZ series (AD8512ARZ, AD8512ARZ-REEL, AD8512ARZ-REEL7) and ADA4000-2ARZ series (ADA4000-2ARZ, ADA4000-2ARZ-R7, ADA4000-2ARZ-RL) represent J-FET input stage alternatives. These parts feature extremely low input bias current (25 pA and 5 pA respectively, compared to 700 nA in the TLE2142QDRQ1), making them suitable for high-impedance signal sources. The AD8512ARZ series operates from 10V to 30V, which does not encompass the TLE2142QDRQ1's minimum 4V supply requirement. The ADA4000-2ARZ series operates from 8V to 36V, providing partial overlap with the original device's supply range. Both J-FET alternatives are ROHS3 compliant and carry identical regulatory status.
Packaging and Inventory Considerations
Substitute parts are available in multiple packaging formats: tube, cut tape with digi-reel, and tape and reel configurations. Selection should align with manufacturing assembly requirements and inventory management protocols. All substitute parts maintain the 8-SOIC surface-mount package format and are classified as active products with current manufacturing status.
Frequently Asked Questions (FAQ)
Q: Can the ADA4075-2ARZ series directly replace the TLE2142QDRQ1 in all applications?
A: The ADA4075-2ARZ series shares the same general-purpose amplifier classification, dual-circuit configuration, and 8-SOIC package as the TLE2142QDRQ1. Both operate across the -40°C to 125°C temperature range and are ROHS3 compliant. However, the ADA4075-2ARZ series operates from 9V to 36V, which does not include the TLE2142QDRQ1's minimum 4V supply capability. Direct replacement is valid only in applications where the supply voltage remains at or above 9V.
Q: What is the primary difference between the AD8512ARZ and ADA4000-2ARZ substitutes?
A: Both are J-FET input amplifiers with extremely low input bias current. The AD8512ARZ operates from 10V to 30V with 8 MHz gain-bandwidth product and 70 mA output current per channel. The ADA4000-2ARZ operates from 8V to 36V with 5 MHz gain-bandwidth product and 28 mA output current per channel. The ADA4000-2ARZ provides wider supply voltage range and lower supply current consumption, while the AD8512ARZ offers higher bandwidth and output current capability.
Q: Why does the LM2904VDR2G have a lower gain-bandwidth product than the TLE2142QDRQ1?
A: The LM2904VDR2G is a legacy general-purpose operational amplifier design with 1 MHz gain-bandwidth product, compared to the TLE2142QDRQ1's 5.9 MHz. This reflects different design generations and performance targets. The LM2904VDR2G is suitable for low-frequency applications where bandwidth requirements are modest, but not for applications requiring the higher frequency response of the TLE2142QDRQ1.
Q: Are all substitute parts automotive-qualified like the TLE2142QDRQ1?
A: The TLE2142QDRQ1 carries AEC-Q100 automotive qualification. The substitute parts listed do not explicitly indicate AEC-Q100 qualification in the provided specifications. Applications requiring automotive-grade qualification should verify qualification status with the respective manufacturers before selection.
Q: What packaging options are available for the ADA4075-2ARZ substitute?
A: The ADA4075-2ARZ is available in three packaging formats: tube (ADA4075-2ARZ), cut tape with digi-reel (ADA4075-2ARZ-R7), and tape and reel (ADA4075-2ARZ-RL). All three variants contain identical electrical specifications and are ROHS3 compliant. Selection depends on manufacturing assembly requirements and inventory management protocols.
Q: Can J-FET substitutes be used in applications designed for the TLE2142QDRQ1?
A: J-FET substitutes (AD8512ARZ series, ADA4000-2ARZ series) feature fundamentally different input stage architectures with extremely low input bias current (25 pA to 5 pA versus 700 nA). These parts are suitable for high-impedance signal sources where input bias current is a critical design parameter. However, they are not direct functional equivalents and require circuit evaluation to confirm compatibility with the original application requirements.
Q: What is the significance of the different packaging suffixes (REEL, REEL7, RL)?
A: These suffixes indicate packaging and delivery format variations. REEL and REEL7 denote cut tape with digi-reel packaging, RL denotes tape and reel format, and parts without suffix typically indicate tube packaging. All variants of a given base part number (e.g., ADA4075-2ARZ, ADA4075-2ARZ-R7, ADA4075-2ARZ-RL) contain identical electrical specifications and performance characteristics.
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