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Texas Instruments TL082BCDR
- Part No.:
- TL082BCDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TL082BCDR.pdf
- Description:
- IC OPAMP JFET 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:9,602
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Product details
Overview
TL082BCDR 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, and operates from ±2.25 V to ±20 V supplies. It is used in pro audio mixers and battery test equipment where low noise (37 nV/√Hz at 1 kHz) and rail-to-rail common-mode input (including VCC+) are critical.
For engineers reviewing the TL082BCDR datasheet, TL082BCDR pinout, TL082BCDR application, or TL082BCDR equivalent, this page provides verified specifications, SOIC-8 package layout, dual-channel FET-input amplifier functionality, thermal performance data, and validated alternative options for design-in and supply continuity planning.
Technical Context
The TL082BCDR implements a high-slew-rate JFET differential input stage with matched P-channel JFETs, enabling ultra-low input bias current (±1 pA typ) and low input offset drift (±2 µV/°C). Its internal compensation ensures stable unity-gain operation with capacitive loads up to 300 pF.
It supports wide supply ranges (±2.25 V to ±20 V), features output short-circuit protection, and maintains CMRR ≥ 95 dB across –40°C to +125°C. The device includes integrated EMI/RF filters and achieves 1.5 kV HBM ESD rating - critical for motor drive and UPS power-stage monitoring interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Slew Rate | 20 V/μs - enables accurate reproduction of fast transients in audio and control-loop feedback paths |
| Input Offset Voltage | ±1 mV (typ) - reduces DC error in precision instrumentation and sensor front-ends |
| Gain-Bandwidth Product | 5.25 MHz - supports stable closed-loop gain ≥ 10 at 500 kHz for active filtering |
| Input Voltage Noise | 37 nV/√Hz at 1 kHz - preserves SNR in low-level signal amplification (e.g., microphone preamps) |
| Supply Voltage Range | ±2.25 V to ±20 V - accommodates single-supply (4.5–40 V) or split-rail configurations in industrial power domains |
| Common-Mode Input Range | Includes VCC+ - allows direct sensing of signals referenced to positive rail (e.g., high-side current sensing) |
| Quiescent Current | 937.5–1125 μA per amplifier - balances low-power operation with high-speed performance |
Pinout & Package
TL082BCDR is supplied in an 8-pin SOIC (D) package with standard surface-mount footprint (5.3 mm × 6.2 mm, 1.27 mm pitch). Thermal resistance RθJA = 147.8°C/W enables reliable operation at ambient temperatures up to +125°C with minimal heatsinking.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives external load or next-stage input; short-circuit protected |
| 2 | IN− A | Inverting input for Amplifier A - high-impedance JFET node (ZICM = 6 TΩ || 1 pF) |
| 3 | IN+ A | Non-inverting input for Amplifier A - accepts common-mode voltages up to VCC+ |
| 4 | VCC− | Negative supply rail - must be decoupled locally to minimize PSRR degradation |
| 5 | IN+ B | Non-inverting input for Amplifier B - electrically isolated from Channel A; identical specs |
| 6 | IN− B | Inverting input for Amplifier B - matched to Channel A for dual-channel applications (e.g., stereo audio) |
| 7 | OUT B | Amplifier B output - independent sourcing/sinking capability (±26 mA short-circuit current) |
| 8 | VCC+ | Positive supply rail - powers both amplifiers; supports wide-range operation up to ±20 V |
Key Features
| Feature | Design Value |
|---|---|
| Low Input Bias Current | ±1 pA typical - eliminates significant DC error in high-impedance sensor interfaces (e.g., pH electrodes) |
| Output Short-Circuit Protection | ±26 mA continuous - prevents latch-up or damage during transient overloads in motor drive feedback loops |
| EMI/RF Immunity | 53 dB EMI rejection ratio at 1 GHz - suppresses switching noise from nearby SMPS or RF circuits |
| Wide Common-Mode Range | Extends to VCC+ - enables direct interface with signals referenced above ground (e.g., battery cell monitoring) |
| Low Total Harmonic Distortion | 0.00012% at 1 kHz - preserves fidelity in pro-audio signal chains without post-amplifier correction |
Applications
| Pro Audio Mixer Signal Path | Battery Test Equipment Front-End |
|---|---|
|
Use Scenario: Amplifying and summing low-level microphone and line-level signals before ADC conversion in multi-channel studio mixers. IC Role / Device Role / Timing Role: Dual-channel precision op-amp providing gain, buffering, and DC offset cancellation for balanced audio channels. Use Value: 37 nV/√Hz input noise and 0.00012% THD+N ensure clean signal integrity across 20 Hz–20 kHz bandwidth without audible artifacts. |
Use Scenario: Measuring voltage and current during charge/discharge cycling of Li-ion and lead-acid batteries under programmable load conditions. IC Role / Device Role / Timing Role: Dual op-amp configured as precision current-sense amplifier (Channel A) and reference buffer (Channel B). Use Value: ±1 mV offset and rail-inclusive common-mode range enable accurate sub-mV resolution on shunt-based current sensing at battery pack voltage levels up to 40 V. |
| Solar Inverter String Monitoring | AC Motor Drive Control Loop |
|
Use Scenario: Isolating and scaling DC voltage outputs from string-level monitoring ICs in photovoltaic central inverters. IC Role / Device Role / Timing Role: Dual op-amp used for level-shifting and anti-alias filtering prior to isolation amplifier input. Use Value: 20 V/μs slew rate and 5.25 MHz GBW support fast response to rapid irradiance changes while maintaining stability with 20 pF capacitive loads. |
Use Scenario: Conditioning feedback signals from motor phase current sensors and position encoders in servo drive modules. IC Role / Device Role / Timing Role: Dual op-amp implementing current-loop error amplification and encoder signal conditioning in real-time control path. Use Value: 1.5 kV HBM ESD rating and –40°C to +125°C operation ensure robustness in electrically noisy, thermally demanding motor control environments. |
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 | Higher input offset voltage (±3 mV max vs ±1 mV typ), wider temp range (0°C to 70°C vs –40°C to 125°C) | Cost-optimized for commercial-grade audio and general-purpose analog circuits | Select when full industrial temperature range and lowest offset are not required |
| OPA2134UA | Lower noise (8 nV/√Hz), lower distortion (0.00008% THD+N), higher quiescent current (4 mA/ch) | Targeted at high-fidelity audio and precision measurement requiring superior AC performance | Choose when SNR and linearity outweigh power budget constraints |
Compared with TL082CDR, TL082BCDR offers tighter offset and extended temperature capability for harsh environments; compared with OPA2134UA, it trades some noise and distortion performance for lower power and cost - making TL082BCDR optimal for industrial signal conditioning where robustness and efficiency are prioritized.
Availability
TL082BCDR is available at Aetrix Electronics and suitable for pro audio mixer designs, solar inverter monitoring systems, and battery test equipment requiring stable component supply across extended temperature and long production lifecycles.
Supply support for TL082BCDR 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 TL082BCDR belongs to TI's legacy TL08xx FET-input op-amp family, engineered for cost-sensitive yet performance-demanding applications including audio, power conversion, and test instrumentation where JFET input advantages - ultra-low bias current and high input impedance - are essential.
FAQ
What is the maximum supply voltage for TL082BCDR?
The TL082BCDR supports a total supply voltage (VCC+ – VCC−) up to ±20 V (40 V total), with absolute maximum ratings specifying 42 V for non-NS/PS packages. Operation within ±2.25 V to ±20 V ensures full specification compliance across –40°C to +125°C ambient temperature.
Does TL082BCDR have rail-to-rail input capability?
TL082BCDR features a common-mode input voltage range that extends to VCC+, but does not include the negative rail - minimum common-mode voltage is (VCC−) + 1.5 V. It is not a rail-to-rail input op-amp, but its VCC+-inclusive range supports high-side sensing applications.
Can TL082BCDR drive capacitive loads?
Yes, TL082BCDR is specified to drive capacitive loads up to 300 pF while maintaining stability. Its internal compensation and 56° phase margin at 20 pF allow robust operation with typical PCB traces and filter networks without external isolation resistors.
What is the input bias current of TL082BCDR at 125°C?
At TA = –40°C to +125°C, TL082BCDR's input bias current is specified at ±5 nA maximum. This elevated value reflects JFET leakage increase at high temperature but remains orders of magnitude lower than bipolar-input op-amps, preserving accuracy in high-Z circuits.
Is TL082BCDR pin-compatible with other TL082 variants?
Yes, TL082BCDR uses the industry-standard SOIC-8 (D) package with identical pinout to TL082CDR, TL082IDR, and TL082ACDR. All share Pin 1 = OUT A, Pin 2 = IN− A, Pin 3 = IN+ A, Pin 4 = VCC−, Pin 5 = IN+ B, Pin 6 = IN− B, Pin 7 = OUT B, Pin 8 = VCC+.
TL082BCDR 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:
- 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
TL082BCDR FAQ
1.How can I place an order for TL082BCDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TL082BCDR 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 TL082BCDR reliable?
The price and inventory of TL082BCDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL082BCDR is usually 5 days.
3.What payment methods are accepted for TL082BCDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL082BCDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL082BCDR?
TL082BCDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL082BCDR 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 TL082BCDR?
For technical support, including TL082BCDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL082BCDR requirements.
6.How does Aetrix verify that TL082BCDR is sourced from the original manufacturer or authorized distributors?
All TL082BCDR 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 TL082BCDR meets industry standards.
7.What is the process for return or replacement of TL082BCDR?
All TL082BCDR units undergo pre-shipment inspection (PSI). If there is an issue with TL082BCDR, 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 TL082BCDR part is unused and in its original packaging.
Return procedure for TL082BCDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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