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TL082ACDE4 Equivalent & Substitute Parts
Part Overview
The TL082ACDE4 is a J-FET input operational amplifier featuring two independent circuits in an 8-SOIC surface mount package. Manufactured by Texas Instruments, this device is classified as obsolete, which necessitates identification of equivalent and substitute components for ongoing design requirements and production continuity. The TL082ACDE4 operates across a supply voltage range of 10V to 30V with a gain bandwidth product of 3 MHz and a slew rate of 13V/µs, making it suitable for general-purpose analog signal processing applications requiring low input bias current characteristics.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Amplifier Type | J-FET | — |
| Number of Circuits | 2 | — |
| Slew Rate | 13 | V/µs |
| Gain Bandwidth Product | 3 | MHz |
| Current - Input Bias | 30 | pA |
| Voltage - Input Offset | 3 | mV |
| Current - Supply | 1.4 (x2 Channels) | mA |
| Current - Output / Channel | 10 | mA |
| Voltage - Supply Span (Min) | 10 | V |
| Voltage - Supply Span (Max) | 30 | V |
| Operating Temperature | 0 to 70 | °C |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | — |
| Mounting Type | Surface Mount | — |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitution of the TL082ACDE4 is determined by strict alignment of electrical and mechanical parameters. The primary substitution criteria are:
Critical Parameters for Substitution:
- Amplifier Type: J-FET input architecture
- Number of Circuits: Dual-channel configuration
- Package / Case: 8-SOIC form factor with 0.154" (3.90mm) width
- Mounting Type: Surface mount compatibility
- Voltage - Supply Span: Minimum 10V to maximum 30V operating range
- Gain Bandwidth Product: 3 MHz nominal specification
- Slew Rate: 13V/µs nominal specification
- Current - Input Bias: 30 pA nominal specification
Substitute parts are grouped into two categories:
Category 1: Direct Electrical Equivalents — Parts maintaining identical or near-identical electrical specifications with the same J-FET amplifier type, dual-circuit configuration, and compatible supply voltage range. These include TL082ACDR, TL082BCD, and TL082ACD.
Category 2: Functional Alternatives — Parts with different amplifier types (General Purpose, Audio) or enhanced electrical performance characteristics that operate within compatible supply voltage ranges and package formats. These include AD8512ARZ, ADTL082ARZ, LM258DR2G, LM833DT, MC33172D, and MC33172DT.
Parameter Comparison
| Part Number | Manufacturer | Amplifier Type | Slew Rate (V/µs) | Gain Bandwidth Product (MHz) | Input Bias Current (pA) | Input Offset Voltage (mV) | Supply Voltage Min (V) | Supply Voltage Max (V) | Operating Temperature (°C) | Product Status |
|---|---|---|---|---|---|---|---|---|---|---|
| TL082ACDE4 | Texas Instruments | J-FET | 13 | 3 | 30 | 3 | 10 | 30 | 0 to 70 | Obsolete |
| TL082ACD | STMicroelectronics | J-FET | 16 | 3 | 20 | 3 | 6 | 36 | 0 to 70 | Obsolete |
| TL082ACDR | Texas Instruments | J-FET | 13 | 3 | 30 | 3 | 10 | 30 | 0 to 70 | Active |
| TL082BCD | Texas Instruments | J-FET | 13 | 3 | 30 | 2 | 10 | 30 | 0 to 70 | Obsolete |
| TL082CMX/NOPB | Texas Instruments | J-FET | 13 | 4 | 50 | 5 | 36 | 36 | 0 to 70 | Active |
| AD8512ARZ | Analog Devices Inc. | J-FET | 20 | 8 | 25 | 0.1 | 10 | 30 | -40 to 125 | Active |
| ADTL082ARZ | Analog Devices Inc. | J-FET | 20 | 5 | 2 | 1.5 | 8 | 36 | -40 to 125 | Active |
| LM258DR2G | onsemi | General Purpose | — | 1 | 45000 | 2 | 3 | 32 | -25 to 85 | Active |
| LM833DT | STMicroelectronics | Audio | 7 | 15 | 300000 | 0.3 | 5 | 30 | -40 to 105 | Active |
| MC33172D | STMicroelectronics | General Purpose | 2 | 2.1 | 20000 | 1 | 4 | 44 | -40 to 105 | Active |
| MC33172DT | STMicroelectronics | General Purpose | 2 | 2.1 | 20000 | 1 | 4 | 44 | -40 to 105 | Active |
Engineering Selection Recommendations
Primary Substitutes (Direct Equivalents):
The TL082ACDR represents the most direct substitute for the obsolete TL082ACDE4. Both devices are manufactured by Texas Instruments, share identical J-FET amplifier architecture, dual-circuit configuration, and electrical specifications including 13V/µs slew rate, 3 MHz gain bandwidth product, and 30 pA input bias current. The TL082ACDR maintains active product status with ROHS3 compliance and MSL 1 rating. This part is available in Cut Tape and Digi-Reel packaging formats.
The TL082BCD, also from Texas Instruments, provides electrical equivalence with marginally improved input offset voltage specification (2 mV versus 3 mV). This part is supplied in Tube packaging and carries obsolete product status.
The TL082ACD, manufactured by STMicroelectronics, offers enhanced electrical performance with 16V/µs slew rate and reduced input bias current (20 pA). This device extends the supply voltage range to 6V minimum and 36V maximum, providing broader operational flexibility. The TL082ACD carries AEC-Q100 automotive qualification and obsolete product status.
Secondary Substitutes (Enhanced Performance):
The AD8512ARZ and ADTL082ARZ, both from Analog Devices Inc., provide J-FET amplifier architecture with enhanced performance characteristics. The AD8512ARZ delivers 20V/µs slew rate and 8 MHz gain bandwidth product with extended operating temperature range (-40°C to 125°C). The ADTL082ARZ offers superior input bias current (2 pA) and input offset voltage (1.5 mV) specifications with 5 MHz gain bandwidth product and extended supply voltage range (8V to 36V). Both devices maintain active product status and ROHS3 compliance.
Functional Alternatives:
The LM258DR2G (onsemi), MC33172D, and MC33172DT (STMicroelectronics) represent general-purpose amplifier alternatives with dual-circuit 8-SOIC packaging. These devices operate within compatible supply voltage ranges but feature different amplifier architectures and performance characteristics. The LM833DT provides audio amplifier functionality with 15 MHz gain bandwidth product and extended operating temperature range.
Selection of substitute parts must account for application-specific requirements regarding slew rate, gain bandwidth product, input bias current, and operating temperature range. All recommended substitutes maintain ROHS3 compliance, MSL 1 moisture sensitivity rating, and 8-SOIC surface mount packaging compatibility.
Frequently Asked Questions (FAQ)
Q: Can the TL082ACDR directly replace the TL082ACDE4 without circuit modification?
A: The TL082ACDR provides direct electrical equivalence to the TL082ACDE4 with identical J-FET amplifier type, dual-circuit configuration, slew rate (13V/µs), gain bandwidth product (3 MHz), input bias current (30 pA), and supply voltage range (10V to 30V). Both devices are packaged in 8-SOIC form factor with identical pinout. Direct substitution is supported without circuit modification.
Q: What is the primary difference between the TL082ACD and TL082ACDE4?
A: The TL082ACD, manufactured by STMicroelectronics, maintains J-FET amplifier architecture and dual-circuit configuration but provides enhanced electrical performance with 16V/µs slew rate (versus 13V/µs), reduced input bias current (20 pA versus 30 pA), and extended supply voltage range (6V to 36V versus 10V to 30V). The TL082ACD includes AEC-Q100 automotive qualification. Both devices share identical 8-SOIC packaging and 3 MHz gain bandwidth product specification.
Q: Are the AD8512ARZ and ADTL082ARZ suitable replacements for J-FET amplifier applications?
A: Both AD8512ARZ and ADTL082ARZ maintain J-FET input architecture and dual-circuit 8-SOIC packaging compatible with the TL082ACDE4. These Analog Devices components provide enhanced performance with higher slew rates (20V/µs), improved input offset voltage specifications, and extended operating temperature range (-40°C to 125°C). Selection depends on application requirements for slew rate, gain bandwidth product, and temperature performance. The ADTL082ARZ offers superior input bias current specification (2 pA).
Q: Why are general-purpose amplifiers like MC33172D listed as substitutes?
A: The MC33172D and MC33172DT are included as functional alternatives due to dual-circuit 8-SOIC packaging compatibility and overlapping supply voltage range (4V to 44V). These general-purpose amplifiers operate within the TL082ACDE4 supply envelope but feature different amplifier architecture and reduced slew rate (2V/µs). Selection of general-purpose alternatives is appropriate only when application requirements do not mandate J-FET input characteristics or specific slew rate performance.
Q: What packaging options are available for substitute parts?
A: Substitute parts are available in multiple packaging formats: Cut Tape (CT) & Digi-Reel for TL082ACDR and MC33172DT; Tape & Reel (TR) for TL082CMX/NOPB; and Tube packaging for TL082BCD, AD8512ARZ, ADTL082ARZ, LM833DT, and MC33172D. Selection of packaging format depends on production volume requirements and supply chain specifications. All parts maintain 8-SOIC surface mount form factor with 0.154" (3.90mm) width.
Q: Are all substitute parts ROHS3 compliant?
A: All recommended substitute parts listed in this reference maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, consistent with the TL082ACDE4 environmental specifications. Compliance certifications support deployment in applications requiring regulatory adherence to hazardous substance restrictions.
Q: What is the significance of product status (Active versus Obsolete) in part selection?
A: Product status indicates manufacturing availability and long-term supply continuity. Active status parts (TL082ACDR, TL082CMX/NOPB, AD8512ARZ, ADTL082ARZ, LM258DR2G, LM833DT, MC33172D, MC33172DT) are currently manufactured and supported by suppliers. Obsolete status parts (TL082ACDE4, TL082ACD, TL082BCD) are no longer in production and subject to inventory depletion. Selection of active status parts ensures sustained availability for production requirements.
Q: How do input bias current specifications affect circuit performance?
A: Input bias current determines the magnitude of current flowing into amplifier input terminals. The TL082ACDE4 specifies 30 pA input bias current, characteristic of J-FET input amplifiers. Substitutes with lower input bias current (ADTL082ARZ at 2 pA, AD8512ARZ at 25 pA) reduce input offset voltage drift and improve circuit stability in high-impedance applications. General-purpose alternatives (LM258DR2G at 45 nA, MC33172D at 20 nA) exhibit significantly higher input bias current and are suitable only for applications tolerating higher input current levels.
Q: What operating temperature range considerations apply to substitute selection?
A: The TL082ACDE4 operates across 0°C to 70°C temperature range. Substitute parts offer extended temperature performance: AD8512ARZ and ADTL082ARZ operate -40°C to 125°C; LM833DT and MC33172D/MC33172DT operate -40°C to 105°C; LM258DR2G operates -25°C to 85°C. Selection of extended temperature range parts supports applications requiring operation beyond standard industrial temperature specifications.
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