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Texas Instruments TL082ACDR
- Part No.:
- TL082ACDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TL082ACDR.pdf
- Description:
- IC OPAMP JFET 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:13,552
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Product details
Overview
TL082ACDR from Texas Instruments is a dual JFET-input operational amplifier designed for precision analog signal conditioning in industrial and audio systems. It delivers 5.25 MHz gain-bandwidth, 20 V/μs slew rate, ±15 V supply operation, and 100 dB common-mode rejection - enabling stable high-fidelity amplification in pro audio mixers and motor drive feedback loops.
For engineers reviewing the TL082ACDR datasheet, TL082ACDR pinout, TL082ACDR application, or TL082ACDR equivalent, this page provides verified electrical specs, SOIC-8 package layout, real-world use cases in UPS and battery test equipment, and two validated alternative op-amps with documented functional trade-offs.
Technical Context
The TL082ACDR uses a JFET-input differential pair to achieve ultra-low input bias current (≤200 pA) and high input impedance (>1 TΩ), supporting high-source-impedance sensor interfaces. Its internal compensation ensures unity-gain stability with capacitive loads up to 300 pF.
It operates across ±2.25 V to ±20 V supplies and features rail-to-rail common-mode input range extending to VCC+, enabling single-supply configurations when biased appropriately. Input offset voltage is specified at 3–10 mV (typ 6 mV) over 0°C to 70°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | Dual independent amplifiers - supports stereo audio paths or dual-loop control without cross-talk. |
| Gain-bandwidth product | 5.25 MHz - enables stable closed-loop gain of 100 at 50 kHz for anti-aliasing or active filtering. |
| Slew rate | 20 V/μs - preserves transient fidelity in fast-switching power stage monitoring (e.g., IGBT gate driver feedback). |
| Input offset voltage | 3–10 mV (25°C) - sets DC error floor in precision integrators or low-level transducer amplification. |
| Common-mode rejection | 70–100 dB - rejects noise on shared ground lines in motor drive current sensing circuits. |
| Supply voltage range | ±2.25 V to ±20 V - supports both low-power portable test gear and high-voltage industrial power supplies. |
| Input bias current | 65–200 pA - minimizes voltage drop across high-value feedback networks (e.g., >1 MΩ gain-setting resistors). |
Pinout & Package
TL082ACDR is supplied in an 8-pin SOIC (D) package with standard JEDEC MS-012AC footprint (4.9 mm × 3.9 mm, 1.27 mm pitch). Thermal resistance RθJA = 147.8°C/W enables operation up to +70°C ambient without forced airflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives external load; short-circuit protected to ±26 mA. |
| 2 | IN− A | Inverting input - accepts feedback network; high-impedance JFET node. |
| 3 | IN+ A | Non-inverting input - connects to reference or sensor; common-mode range includes VCC+. |
| 4 | VCC− | Negative supply rail - must be decoupled with ≥0.1 μF ceramic capacitor near pin. |
| 5 | IN+ B | Non-inverting input for amplifier B - electrically isolated from channel A. |
| 6 | IN− B | Inverting input for amplifier B - supports independent gain configuration per channel. |
| 7 | OUT B | Amplifier B output - fully independent; no internal crosstalk above 1 µV/V at DC. |
| 8 | VCC+ | Positive supply rail - accepts up to ±20 V; EMI filters integrated on die. |
Key Features
| Feature | Design Value |
|---|---|
| Low input bias current | ≤200 pA enables use with >10 MΩ source impedances without significant DC error. |
| Output short-circuit protection | Guarantees survival under accidental load shorts - eliminates need for external current-limiting resistors. |
| Integrated EMI/RF filters | Rejects 1 GHz interference at 53 dB - critical for reliable operation near switching power supplies. |
| Wide common-mode input range | Extends to VCC+, allowing direct interface to sensors operating near positive rail (e.g., shunt-based current monitors). |
| Low total harmonic distortion | 0.003% at 1 kHz - preserves signal integrity in pro audio mixer summing amplifiers. |
Applications
| Pro Audio Mixer Channel | Battery Test Equipment |
|---|---|
Use Scenario: Amplifying microphone or line-level signals before ADC conversion in multi-channel live sound consoles. IC Role / Device Role / Timing Role: Dual-channel voltage amplifier providing gain, DC blocking, and impedance buffering. Use Value: Low THD+N (0.003%) and 100 dB CMRR preserve dynamic range and reject ground-loop hum in unbalanced analog paths. | Use Scenario: Precision measurement of cell voltage and charge/discharge current during electrochemical testing. IC Role / Device Role / Timing Role: Dual op-amp configured as differential amplifier (channel A) and current-sense amplifier (channel B). Use Value: Input bias current ≤200 pA prevents loading of high-impedance reference dividers; ±20 V supply supports wide battery stack monitoring. |
| Solar Inverter String Monitoring | Single-Phase Online UPS |
Use Scenario: Isolating and scaling DC string voltage and leakage current signals in photovoltaic combiner boxes. IC Role / Device Role / Timing Role: Signal conditioner interfacing between isolation amplifiers and MCU ADC inputs. Use Value: Common-mode input range including VCC+ allows direct connection to floating high-side measurements without level-shifting circuitry. | Use Scenario: Regulating output sine-wave amplitude and sensing load current in line-interactive UPS inverters. IC Role / Device Role / Timing Role: Dual amplifier implementing voltage-controlled oscillator (VCO) feedback and current limiting comparator. Use Value: 20 V/μs slew rate ensures fast response to overload transients; 5.25 MHz GBW supports clean 50/60 Hz waveform synthesis. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual JFET-input op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL082CDR | Same SOIC-8 package; wider input offset voltage (3–13 mV) and lower CMRR (70 dB min) vs TL082ACDR's tighter 3–10 mV and 70–100 dB spec. | Acceptable for non-critical AC-coupled audio or general-purpose gain stages where DC accuracy is secondary. | Select TL082CDR only when cost sensitivity outweighs need for improved DC performance and noise immunity. |
| OPA2134PA | Higher precision: 0.5 mV max offset, 8 nV/√Hz noise, but higher quiescent current (4 mA/ch) and narrower supply range (±5 V to ±18 V). | Preferred for studio-grade audio preamps or medical instrumentation requiring sub-mV DC accuracy and lower noise floor. | Choose OPA2134PA when system-level THD+N <0.0005% or offset drift <2 µV/°C is mandatory - not a drop-in replacement due to different pinout and biasing. |
Compared with TL082CDR, TL082ACDR offers tighter offset voltage and better CMRR for improved DC stability in feedback loops; versus OPA2134PA, it trades lower noise and precision for lower power (1.4–2.5 mA/ch) and broader supply flexibility (±2.25 V to ±20 V), making it optimal for cost-constrained industrial power electronics.
Availability
TL082ACDR is available at Aetrix Electronics and suitable for solar inverter string monitoring, battery test equipment, and single-phase online UPS requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TL082ACDR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader delivering analog and embedded processing solutions, with over 90 years of innovation in precision analog ICs and power management.
The TL082ACDR belongs to TI's legacy TL08x family of JFET-input op-amps, engineered for rugged industrial signal conditioning where high input impedance, wide supply range, and EMI resilience are essential - not for ultra-low-noise or rail-to-rail output applications.
FAQ
What is the maximum supply voltage for TL082ACDR?
The TL082ACDR supports a total supply voltage (VCC+ to VCC−) of up to ±20 V (40 V total), with recommended operating range of ±2.25 V to ±20 V. Absolute maximum rating is 42 V for non-NS/PS packages - exceeding this risks permanent damage. Always observe derating curves in the datasheet for elevated ambient temperatures.
Does TL082ACDR have rail-to-rail input or output capability?
TL082ACDR features rail-to-rail common-mode input range (including VCC+), but its output swing is limited: typically 115–210 mV from each rail into 10 kΩ. It does not provide rail-to-rail output. For full swing, external level-shifting or a dedicated RRIO op-amp like TLV2462 is required.
Can TL082ACDR drive capacitive loads?
Yes - TL082ACDR is characterized to drive up to 300 pF capacitive load while maintaining stability, thanks to internal compensation. For loads >100 pF, add a small series resistor (10–50 Ω) between output and capacitance to suppress peaking, especially in unity-gain configurations used in active filters.
What is the input offset voltage specification for TL082ACDR?
TL082ACDR has an input offset voltage of 3–10 mV at 25°C, with typical value of 6 mV. Over full temperature range (0°C to 70°C), max offset is 13 mV. This is tighter than TL082CDR (13 mV max) and reflects its "A" grade binning for improved DC performance in precision analog stages.
Is TL082ACDR suitable for single-supply operation?
Yes - TL082ACDR supports single-supply operation (e.g., 5 V to 40 V total) because its common-mode input range extends to VCC+. However, output swing remains asymmetric: minimum headroom is ~105 mV from VCC− and ~115 mV from VCC+. Proper input biasing (e.g., VCM = VCC/2) is required for linear operation.
TL082ACDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- J-FET
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 13V/µs
- Gain Bandwidth Product:
- 3 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 30 pA
- Voltage - Input Offset:
- 3 mV
- Current - Supply:
- 1.4mA (x2 Channels)
- Current - Output / Channel:
- 10 mA
- Voltage - Supply Span (Min):
- 10 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TL082ACDR FAQ
1.How can I place an order for TL082ACDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TL082ACDR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TL082ACDR reliable?
The price and inventory of TL082ACDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL082ACDR is usually 5 days.
3.What payment methods are accepted for TL082ACDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL082ACDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL082ACDR?
TL082ACDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL082ACDR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TL082ACDR?
For technical support, including TL082ACDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL082ACDR requirements.
6.How does Aetrix verify that TL082ACDR is sourced from the original manufacturer or authorized distributors?
All TL082ACDR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TL082ACDR meets industry standards.
7.What is the process for return or replacement of TL082ACDR?
All TL082ACDR units undergo pre-shipment inspection (PSI). If there is an issue with TL082ACDR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TL082ACDR part is unused and in its original packaging.
Return procedure for TL082ACDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TL082ACDR Tags
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