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TLE2071AIDR Equivalent & Substitute Parts
Part Overview
The TLE2071AIDR is a J-FET input operational amplifier manufactured by Texas Instruments, housed in an 8-SOIC surface mount package. This device is classified as a linear amplifier with a single circuit configuration and is currently in active product status. The TLE2071AIDR is part of the Excalibur™ series and is ROHS3 compliant with unlimited moisture sensitivity rating.
Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be achieved within the specified parameter ranges. The following analysis identifies qualified alternatives based on matching amplifier type, package configuration, and critical electrical specifications.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Amplifier Type | J-FET | — |
| Number of Circuits | 1 | — |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | — |
| Slew Rate | 45 | V/µs |
| Gain Bandwidth Product | 10 | MHz |
| Current - Input Bias | 20 | pA |
| Voltage - Input Offset | 470 | µV |
| Current - Supply | 1.7 | mA |
| Current - Output / Channel | 48 | mA |
| Voltage - Supply Span (Min) | 4.5 | V |
| Voltage - Supply Span (Max) | 38 | V |
| Operating Temperature | -40°C ~ 85°C | — |
| Mounting Type | Surface Mount | — |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitution eligibility is determined by the following criteria:
Primary Matching Criteria:
- Amplifier Type: J-FET (for direct functional equivalence)
- Package Configuration: 8-SOIC surface mount form factor
- Number of Circuits: Single circuit configuration
- Compliance: ROHS3 compliant, MSL Level 1
Secondary Electrical Compatibility Factors:
- Slew Rate: Minimum 45 V/µs or higher
- Gain Bandwidth Product: Minimum 10 MHz or higher
- Input Bias Current: 20 pA or lower
- Supply Voltage Range: Must encompass or exceed 4.5 V to 38 V span
- Operating Temperature: Must support -40°C to 85°C minimum
The AD8610 series (AD8610ARZ, AD8610ARZ-REEL, AD8610ARZ-REEL7, AD8610BRZ, AD8610BRZ-REEL7) qualifies as direct J-FET substitutes with superior electrical performance characteristics. The LT1122 series (LT1122CS8#PBF, LT1122DS8#PBF) qualifies as J-FET alternatives with comparable performance within the specified operating envelope.
General purpose amplifiers (AD847JRZ, AD847JRZ-REEL7, LT1008S8#PBF) are listed as functional alternatives where J-FET input characteristics are not mandatory and general purpose amplifier performance is acceptable.
Parameter Comparison
| Parameter | TLE2071AIDR | AD8610ARZ / AD8610ARZ-REEL / AD8610ARZ-REEL7 | AD8610BRZ / AD8610BRZ-REEL7 | LT1122CS8#PBF / LT1122DS8#PBF | AD847JRZ / AD847JRZ-REEL7 | LT1008S8#PBF |
|---|---|---|---|---|---|---|
| Amplifier Type | J-FET | J-FET | J-FET | J-FET | General Purpose | General Purpose |
| Number of Circuits | 1 | 1 | 1 | 1 | 1 | 1 |
| Package / Case | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC |
| Slew Rate (V/µs) | 45 | 60 | 60 | 75 | 300 | 0.2 |
| Gain Bandwidth Product (MHz) | 10 | 25 | 25 | 13 | 50 | — |
| Current - Input Bias (pA) | 20 | 3 | 3 | 12 | 3.3 µA | 100 pA |
| Voltage - Input Offset (µV) | 470 | 85 | 45 | 130 | 500 | 30 |
| Current - Supply (mA) | 1.7 | 3 | 3 | 7.8 | 5.3 | 0.38 |
| Current - Output / Channel (mA) | 48 | 45 | 45 | — | 32 | — |
| Voltage - Supply Span Min (V) | 4.5 | 10 | 10 | 10 | 9 | 4 |
| Voltage - Supply Span Max (V) | 38 | 26 | 26 | 36 | 36 | 36 |
| Operating Temperature (°C) | -40 ~ 85 | -40 ~ 125 | -40 ~ 125 | -40 ~ 85 | 0 ~ 70 | 0 ~ 70 |
| Mounting Type | 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 |
| MSL Rating | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
Engineering Selection Recommendations
Tier 1 - Direct J-FET Substitutes (Highest Compatibility):
The AD8610 series devices (AD8610ARZ, AD8610ARZ-REEL, AD8610ARZ-REEL7, AD8610BRZ, AD8610BRZ-REEL7) are qualified direct substitutes for the TLE2071AIDR. All variants maintain J-FET amplifier architecture, identical 8-SOIC packaging, and ROHS3 compliance with MSL Level 1 rating. The AD8610 series demonstrates superior electrical performance with higher slew rate (60 V/µs vs. 45 V/µs), higher gain bandwidth product (25 MHz vs. 10 MHz), and lower input bias current (3 pA vs. 20 pA). Extended operating temperature range (-40°C to 125°C) provides additional margin. Supply voltage span limitation (10 V to 26 V) requires verification against application requirements, as the TLE2071AIDR supports 4.5 V to 38 V.
Tier 2 - J-FET Alternatives (Functional Compatibility):
The LT1122 series (LT1122CS8#PBF, LT1122DS8#PBF) provides J-FET input amplifier functionality in 8-SOIC packaging with ROHS3 compliance and MSL Level 1 rating. These devices support the full operating temperature range (-40°C to 85°C) and supply voltage span (10 V to 36 V) of the TLE2071AIDR. Slew rate (75 V/µs) and gain bandwidth product (13 MHz) exceed the main part specifications. Higher supply current (7.8 mA vs. 1.7 mA) and input offset voltage (130 µV vs. 470 µV) represent trade-offs requiring application-level evaluation.
Tier 3 - General Purpose Alternatives (Conditional Compatibility):
The AD847JRZ and AD847JRZ-REEL7 devices are general purpose amplifiers in 8-SOIC packaging with ROHS3 compliance and MSL Level 1 rating. These parts are suitable only where J-FET input characteristics are not required. Operating temperature range (0°C to 70°C) does not support the full -40°C to 85°C specification of the TLE2071AIDR. Supply voltage span (9 V to 36 V) does not support the 4.5 V minimum requirement.
The LT1008S8#PBF is a general purpose amplifier with ultra-low supply current (380 µA) and extended supply voltage range (4 V to 36 V). Operating temperature range (0°C to 70°C) and significantly reduced slew rate (0.2 V/µs) limit applicability to low-frequency, low-power circuits only.
Compliance and Certification:
All listed substitute parts maintain ROHS3 compliance and MSL Level 1 (unlimited) moisture sensitivity rating, ensuring compatibility with standard manufacturing and storage protocols. All parts are classified as active products with current manufacturer support.
Frequently Asked Questions (FAQ)
Q: Can the AD8610 series directly replace the TLE2071AIDR in all applications?
A: The AD8610 series provides direct J-FET amplifier substitution with superior electrical performance and identical 8-SOIC packaging. However, the reduced maximum supply voltage (26 V vs. 38 V) must be verified against application requirements. If the circuit operates above 26 V, the AD8610 series is not suitable.
Q: What is the primary difference between J-FET and general purpose amplifier substitutes?
A: J-FET input amplifiers (AD8610, LT1122 series) feature extremely low input bias current (3-12 pA) and are suitable for high-impedance signal sources and precision measurement applications. General purpose amplifiers (AD847, LT1008) have higher input bias current and are suitable for standard signal conditioning applications where input impedance is not critical.
Q: Are the different AD8610 packaging variants (ARZ, ARZ-REEL, ARZ-REEL7, BRZ, BRZ-REEL7) electrically equivalent?
A: Yes. The electrical specifications are identical across all AD8610 variants. Differences are limited to packaging format: Tube (ARZ, BRZ) versus Cut Tape with Digi-Reel® (ARZ-REEL, ARZ-REEL7, BRZ-REEL7). The "B" grade variant (AD8610BRZ series) specifies lower input offset voltage (45 µV vs. 85 µV) compared to the "A" grade variant (AD8610ARZ series).
Q: Can the LT1122 series be used in applications requiring the full -40°C to 85°C temperature range?
A: Yes. The LT1122 series supports the complete -40°C to 85°C operating temperature range specified for the TLE2071AIDR. Extended temperature operation to 125°C is not available with the LT1122 series.
Q: What are the supply current implications of substituting with the AD8610 or LT1122 series?
A: The TLE2071AIDR operates at 1.7 mA supply current. The AD8610 series requires 3 mA (1.76× increase), and the LT1122 series requires 7.8 mA (4.6× increase). Applications with strict power budget constraints must account for this increased quiescent current draw.
Q: Is the LT1008S8#PBF suitable as a substitute for the TLE2071AIDR?
A: The LT1008S8#PBF is not recommended as a direct substitute. While it provides extended supply voltage range (4 V to 36 V) and ultra-low supply current (380 µA), the extremely low slew rate (0.2 V/µs) and reduced operating temperature range (0°C to 70°C) make it unsuitable for applications requiring the TLE2071AIDR's performance characteristics. This device is appropriate only for low-frequency, low-power signal conditioning circuits.
Q: Are all substitute parts available in the same 8-SOIC package footprint?
A: Yes. All listed substitute parts are housed in 8-SOIC (0.154", 3.90mm Width) surface mount packages, ensuring mechanical compatibility with existing PCB layouts. No board redesign is required for package accommodation.
Q: What compliance certifications apply to all substitute parts?
A: All substitute parts are ROHS3 compliant and carry MSL Level 1 (unlimited) moisture sensitivity rating. All parts are classified as active products with current manufacturer support. REACH status is unaffected for all listed devices.
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