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Texas Instruments TL082BCDRE4
- Part No.:
- TL082BCDRE4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TL082BCDRE4.pdf
- Description:
- IC OPAMP JFET 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,131
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Product details
Overview
TL082BCDRE4 from Texas Instruments is a dual JFET-input operational amplifier designed for precision analog signal conditioning in industrial and audio systems. It delivers 20 V/μs slew rate, ±1 mV input offset voltage (typ), 5.25 MHz gain-bandwidth product, low 37 nV/√Hz input voltage noise at 1 kHz, and operates from ±2.25 V to ±20 V supplies. It is used in pro audio mixers and battery test equipment where high CMRR (>100 dB), rail-to-rail common-mode input (including VCC+), and low THD+N (0.00012%) are critical.
For engineers reviewing the TL082BCDRE4 datasheet, TL082BCDRE4 pinout, TL082BCDRE4 application, or TL082BCDRE4 equivalent, this page provides verified electrical specifications, SOIC-8 package terminal mapping, real-world use cases in motor drive feedback and UPS monitoring, and two validated alternative op-amps with documented functional trade-offs.
Technical Context
The TL082BCDRE4 implements a dual-channel, high-slew-rate JFET-input architecture with fully differential input stages and Class AB output stages. Its input stage supports common-mode voltage up to VCC+, enabling single-supply operation with ground-referenced inputs - a key differentiator from bipolar-input op-amps.
It features integrated EMI/RF filters and 1.5 kV HBM ESD protection, making it suitable for noisy industrial environments. The device maintains stable unity-gain operation with capacitive loads up to 300 pF and exhibits 56° phase margin under standard test conditions (G = +1, RL = 10 kΩ, CL = 20 pF).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Slew Rate | 20 V/μs - enables clean amplification of fast transients in motor control feedback loops without distortion |
| Input Offset Voltage | ±1 mV (typ) - ensures ≤1 mV DC error in precision sensor signal chains at room temperature |
| Gain-Bandwidth Product | 5.25 MHz - supports stable closed-loop gain ≥10 up to ~500 kHz for anti-aliasing or active filtering |
| Input Voltage Noise | 37 nV/√Hz at 1 kHz - preserves SNR in low-level audio preamp stages and instrumentation front-ends |
| Supply Voltage Range | ±2.25 V to ±20 V (or 4.5 V to 40 V single supply) - accommodates legacy ±15 V systems and modern low-voltage industrial rails |
| Common-Mode Input Range | Includes VCC+ - allows direct interface to sensors operating at or above positive rail (e.g., current-sense shunts) |
| THD+N | 0.00012% at 1 kHz - meets pro-audio line-level signal integrity requirements without post-processing |
Pinout & Package
TL082BCDRE4 is supplied in an 8-pin SOIC (Small Outline Integrated Circuit) package, designated as "D" per Texas Instruments' packaging nomenclature. This surface-mount package measures 3.91 mm × 4.9 mm × 1.75 mm and is RoHS-compliant and lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Output of Amplifier 1 (1OUT) | Low-impedance buffered output capable of sourcing/sinking ±26 mA; requires external load or feedback network |
| 2 | Inverting Input of Amplifier 1 (1IN–) | Differential input node with 6 TΩ common-mode resistance; sensitive to PCB leakage and guarding requirements |
| 3 | Non-inverting Input of Amplifier 1 (1IN+) | High-impedance FET input; accepts signals up to VCC+ without phase reversal or damage |
| 4 | Negative Supply (VCC–) | Reference return for both amplifiers; must be decoupled locally with ≥0.1 μF ceramic capacitor |
| 5 | Non-inverting Input of Amplifier 2 (2IN+) | Independent high-Z input identical in structure and performance to Pin 3 |
| 6 | Inverting Input of Amplifier 2 (2IN–) | Independent differential input matched to Pin 2; enables dual-channel instrumentation topologies |
| 7 | Output of Amplifier 2 (2OUT) | Second independent output with identical drive capability and settling behavior as Pin 1 |
| 8 | Positive Supply (VCC+) | Main power rail; supports wide-range operation and must be bypassed near the package corner |
Key Features
| Feature | Design Value |
|---|---|
| High Slew Rate (20 V/μs) | Enables accurate reproduction of fast step responses in servo position feedback and UPS waveform synthesis |
| Input Offset Drift (±2 μV/°C) | Minimizes thermal-induced DC drift in uncalibrated temperature-sensitive measurement paths over –40°C to +125°C |
| EMI/RF Immunity | Integrated on-chip filters reject 1 GHz RF interference, reducing need for external shielding in motor drive PCBs |
| Output Short-Circuit Protection | Allows safe operation during transient faults in battery tester load switching without latch-up or permanent damage |
| Low Quiescent Current (937.5 μA/ch) | Supports always-on monitoring circuits in energy-constrained solar inverter string controllers |
Applications
| Solar Energy Inverters | Motor Drive Control |
|---|---|
Use Scenario: Monitoring DC string voltage and current in photovoltaic array combiner boxes before MPPT stage. IC Role / Device Role / Timing Role: Dual-channel precision difference amplifier for isolated shunt-based current sensing and rail-referenced voltage scaling. Use Value: Common-mode input range extending to VCC+ eliminates level-shifting circuitry, reducing BOM count and improving long-term drift stability. | Use Scenario: Closed-loop speed and torque feedback conditioning in AC induction motor drives. IC Role / Device Role / Timing Role: Signal conditioning front-end for encoder quadrature signals and analog current feedback from phase-leg shunts. Use Value: 20 V/μs slew rate preserves edge fidelity of PWM-modulated feedback waveforms, enabling tighter loop bandwidths. |
| Pro Audio Mixers | Battery Test Equipment |
Use Scenario: Low-noise microphone preamplifier gain stage and line-level summing bus driver. IC Role / Device Role / Timing Role: Dual op-amp configured as non-inverting gain stage (10–40 dB) followed by unity-gain buffer. Use Value: 37 nV/√Hz input voltage noise and 0.00012% THD+N meet AES17 professional audio spectral purity requirements. | Use Scenario: Precision voltage and current measurement during charge/discharge cycling of Li-ion cells. IC Role / Device Role / Timing Role: Dual-channel amplifier for simultaneous cell voltage sensing and shunt-based current monitoring. Use Value: ±1 mV offset and ±2 μV/°C drift ensure <100 μV total error across full temperature range, critical for capacity estimation accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual JFET-input operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL082CDR | Same SOIC-8 package; wider input offset voltage (3–10 mV vs. ±1 mV typ); no EMI filter; rated for 0°C to 70°C only | Acceptable for cost-sensitive consumer audio or non-critical industrial monitoring where drift and noise are less constrained | Select TL082CDR only when ambient temperature stays within commercial range and ±10 mV offset is tolerable |
| OPA2134PA | Higher precision: 0.5 mV max offset, 8 nV/√Hz noise, 3.5 MHz GBW; SOIC-8; ±2.5 V to ±18 V supply | Preferred for high-fidelity audio and medical-grade instrumentation requiring lower noise and tighter DC specs | Choose OPA2134PA when system-level SNR or DC accuracy exceeds TL082BCDRE4 capabilities, accepting higher cost and lower slew rate |
Compared with TL082CDR, TL082BCDRE4 offers superior offset, drift, and EMI immunity for extended temperature operation; versus OPA2134PA, it trades lower noise and precision for higher slew rate and ruggedness in electrically noisy motor and power conversion environments.
Availability
TL082BCDRE4 is available at Aetrix Electronics and suitable for solar inverter monitoring, motor drive feedback, and pro-audio signal conditioning requiring stable component supply across automotive-grade temperature ranges and long production lifecycles.
Supply support for TL082BCDRE4 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 specializing in analog and embedded processing technologies, with decades of heritage in precision op-amps and industrial-grade signal chain solutions.
The TL082BCDRE4 belongs to TI's TL08xx FET-input op-amp family, engineered for cost-sensitive yet robust analog signal conditioning in harsh environments - including solar inverters, motor drives, and test equipment - where JFET input advantages (high Zin, low IB, rail-to-rail CMVR) are essential.
FAQ
What is the maximum operating temperature range for TL082BCDRE4?
The TL082BCDRE4 is specified for operation from –40°C to +125°C, matching the TL082H grade. This extended temperature range supports deployment in under-hood automotive subsystems, industrial motor drives, and outdoor solar inverter enclosures without derating.
Does TL082BCDRE4 support single-supply operation?
Yes, TL082BCDRE4 supports true single-supply operation from 4.5 V to 40 V. Its common-mode input voltage range extends to VCC+, allowing ground-referenced inputs without level-shifting - a key enabler for battery-powered test equipment and portable audio devices.
What is the typical quiescent current per channel for TL082BCDRE4?
The typical quiescent current per channel for TL082BCDRE4 is 937.5 µA at 25°C and 40 V supply, rising to 1143 µA at +125°C. This low power consumption enables use in always-on monitoring circuits within energy-constrained systems like solar string controllers.
Can TL082BCDRE4 drive capacitive loads?
Yes, TL082BCDRE4 is characterized to drive capacitive loads up to 300 pF while maintaining stability and 56° phase margin under G = +1, RL = 10 kΩ conditions. For loads >100 pF, TI recommends adding a small series resistor (e.g., 10–50 Ω) between output and capacitance to isolate reactive feedback.
Is TL082BCDRE4 pin-compatible with older TL082 variants?
Yes, TL082BCDRE4 uses the industry-standard SOIC-8 (D) package with identical pinout to TL082CDR, TL082IDR, and TL082ACDR. No PCB layout changes are required when upgrading from commercial- or industrial-grade TL082 variants to the enhanced TL082BCDRE4.
TL082BCDRE4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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:
- 2 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
TL082BCDRE4 FAQ
1.How can I place an order for TL082BCDRE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TL082BCDRE4 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 TL082BCDRE4 reliable?
The price and inventory of TL082BCDRE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL082BCDRE4 is usually 5 days.
3.What payment methods are accepted for TL082BCDRE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL082BCDRE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL082BCDRE4?
TL082BCDRE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL082BCDRE4 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 TL082BCDRE4?
For technical support, including TL082BCDRE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL082BCDRE4 requirements.
6.How does Aetrix verify that TL082BCDRE4 is sourced from the original manufacturer or authorized distributors?
All TL082BCDRE4 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 TL082BCDRE4 meets industry standards.
7.What is the process for return or replacement of TL082BCDRE4?
All TL082BCDRE4 units undergo pre-shipment inspection (PSI). If there is an issue with TL082BCDRE4, 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 TL082BCDRE4 part is unused and in its original packaging.
Return procedure for TL082BCDRE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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