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Texas Instruments TL082BCDRG4
- Part No.:
- TL082BCDRG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TL082BCDRG4.pdf
- Description:
- IC OPAMP JFET 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,685
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Product details
Overview
TL082BCDRG4 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 TL082BCDRG4 datasheet, TL082BCDRG4 pinout, TL082BCDRG4 application, or TL082BCDRG4 equivalent, this page provides verified electrical specifications, SOIC-8 package terminal mapping, real-world use cases in motor drive feedback loops and UPS power stage monitoring, and validated alternative options with documented functional trade-offs.
Technical Context
The TL082BCDRG4 implements a high-slew-rate JFET-input differential pair with cascode gain stage and Class AB output buffer. Its architecture supports wide common-mode input range extending to VCC+, enabling direct sensing of signals referenced to positive supply rails without level-shifting.
It features integrated EMI/RF filters and 1.5 kV HBM ESD protection, allowing robust operation in electrically noisy environments such as solar inverters and AC motor drives. The device maintains stable phase margin (>56°) with 20 pF capacitive load and exhibits <0.00012% THD+N at 1 kHz under 40 V supply conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Slew Rate | 20 V/μs - enables accurate reproduction of fast transients in audio and control-loop applications |
| Input Offset Voltage | ±1 mV (typ) - reduces DC error in precision instrumentation and sensor amplification stages |
| Gain-Bandwidth Product | 5.25 MHz - supports stable unity-gain and moderate-gain configurations up to ~100 kHz |
| Input Voltage Noise | 37 nV/√Hz at 1 kHz - suitable for low-level signal amplification in battery test and audio front-ends |
| Supply Voltage Range | ±2.25 V to ±20 V (or 4.5 V to 40 V single-ended) - compatible with legacy ±15 V systems and modern wide-range industrial supplies |
| Common-Mode Input Range | Includes VCC+ - allows direct interface with high-side current sense circuits and rail-referenced sensors |
| Quiescent Current | 937.5–1125 μA per amplifier - balances low power consumption with performance in dual-channel designs |
Pinout & Package
TL082BCDRG4 is supplied in an 8-pin SOIC (D) package with standard JEDEC MS-012AC footprint (5.3 mm × 6.2 mm, 1.27 mm pitch). Thermal resistance RθJA is 147.8°C/W, supporting operation up to +125°C ambient when properly mounted on FR-4 PCB with adequate copper area.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives external load or next-stage input; capable of ±26 mA short-circuit current |
| 2 | IN− A | Inverting input of Amplifier A - high-impedance JFET node (ZICM = 6 TΩ || 1 pF) |
| 3 | IN+ A | Non-inverting input of Amplifier A - accepts common-mode voltages up to VCC+ |
| 4 | VCC− | Negative supply rail - must be decoupled locally with ≥0.1 μF ceramic capacitor |
| 5 | IN+ B | Non-inverting input of Amplifier B - independent channel with identical input characteristics |
| 6 | IN− B | Inverting input of Amplifier B - matched to IN− A for dual-channel common-mode rejection |
| 7 | OUT B | Amplifier B output - electrically isolated from OUT A; shares same VCC+ and VCC− rails |
| 8 | VCC+ | Positive supply rail - supports rail-to-rail input common-mode range and 210 mV headroom at 10 kΩ load |
Key Features
| Feature | Design Value |
|---|---|
| High Slew Rate | 20 V/μs ensures minimal distortion in audio signal paths and fast response in motor current feedback loops |
| Low Input Bias Current | ±1 pA typical enables high-impedance sensor interfacing (e.g., piezoelectric, pH electrodes) without significant loading error |
| Output Short-Circuit Protection | ±26 mA continuous short-circuit current limits thermal stress during fault conditions in industrial power modules |
| EMI/RF Filtering | Integrated filters suppress 1 GHz interference, improving immunity in UPS and solar inverter control boards |
| Wide Temperature Range | Specified from –40°C to +125°C supports deployment in automotive engine bay and outdoor energy storage enclosures |
Applications
| Pro Audio Mixer Channel | Battery Test Equipment |
|---|---|
Use Scenario: Amplifying microphone preamp signals and summing multiple line-level inputs before DAC conversion. IC Role / Device Role / Timing Role: Dual op-amp configured as non-inverting gain stage and active filter section within analog signal chain. Use Value: 37 nV/√Hz input noise and 0.00012% THD+N preserve dynamic range and fidelity across 20 Hz–20 kHz bandwidth. |
Use Scenario: Precision voltage/current sensing during charge/discharge cycling of Li-ion and lead-acid batteries. IC Role / Device Role / Timing Role: Dual amplifier implementing high-side current sense amplifier and battery voltage buffer. Use Value: Rail-to-rail common-mode input (to VCC+) allows direct connection to shunt resistor top node without level shifters. |
| Solar String Inverter Feedback | Three-Phase UPS Power Stage |
Use Scenario: Isolated DC-link voltage monitoring and MPPT reference generation in photovoltaic string inverters. IC Role / Device Role / Timing Role: Dual op-amp used for voltage scaling and error amplifier in inner-loop voltage regulation. Use Value: ±1 mV offset and ±2 μV/°C drift minimize temperature-induced calibration drift over outdoor operating range. |
Use Scenario: Gate driver biasing and IGBT collector-emitter voltage sensing in three-phase inverter legs. IC Role / Device Role / Timing Role: Dual amplifier providing isolated gate bias reference and desaturation detection comparator front-end. Use Value: 1.5 kV HBM ESD rating and integrated RF filtering enhance reliability in high-dv/dt switching 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 (±3 mV typ), wider temp range (0°C to 70°C), no integrated EMI filters | Lower cost for commercial-grade audio and general-purpose analog circuits; not rated for industrial ambient extremes | Select TL082CDR only if full –40°C to +125°C operation and EMI immunity are not required. |
| OPA2134PA | Lower noise (8 nV/√Hz), lower distortion (0.00008% THD+N), higher quiescent current (4 mA/ch), no short-circuit protection | Preferred for ultra-high-fidelity audio; unsuitable for industrial fault-tolerant designs requiring output protection | Choose OPA2134PA when audio SNR is paramount and system-level fault protection is implemented externally. |
Compared with TL082BCDRG4, TL082CDR trades industrial temperature and EMI robustness for lower cost, while OPA2134PA delivers superior audio performance at higher power and reduced fault tolerance-making TL082BCDRG4 the balanced choice for ruggedized mixed-signal applications.
Availability
TL082BCDRG4 is available at Aetrix Electronics and suitable for pro audio mixer design, battery test equipment development, and solar inverter feedback loop implementation requiring stable component supply across extended temperature and EMI-prone environments.
Supply support for TL082BCDRG4 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 over 50 years of op-amp innovation and broad industrial market presence.
The TL082BCDRG4 belongs to TI's TL08xx FET-input op-amp family, engineered for cost-sensitive yet performance-demanding applications including motor control, renewable energy systems, and professional audio infrastructure.
FAQ
What is the maximum supply voltage for TL082BCDRG4?
The TL082BCDRG4 supports a total supply voltage (VCC+ to VCC−) of up to 40 V, corresponding to ±20 V dual-supply operation. Absolute maximum ratings specify 42 V for non-NS/PS packages, but recommended operating conditions limit continuous use to 40 V to ensure long-term reliability and specified performance across temperature.
Does TL082BCDRG4 support rail-to-rail input?
TL082BCDRG4 supports common-mode input voltage up to VCC+, satisfying rail-to-rail input capability on the positive side. However, the lower common-mode limit is (VCC−) + 1.5 V, so it does not extend fully to the negative rail. This enables high-side sensing but requires biasing for true bipolar signal handling near VCC−.
What is the input offset voltage specification for TL082BCDRG4?
The TL082BCDRG4 has a typical input offset voltage of ±1 mV at 25°C, with a maximum of ±4 mV over temperature (–40°C to +125°C). This low offset enables precision DC-coupled amplification in battery voltage monitoring and motor current sensing without frequent recalibration.
Can TL082BCDRG4 drive capacitive loads?
Yes, TL082BCDRG4 is characterized to drive up to 300 pF capacitive load while maintaining stability. Its phase margin remains >56° with 20 pF load, and small-signal overshoot is controlled up to 100 pF-making it suitable for driving ADC input buffers and long PCB traces in industrial data acquisition systems.
Is TL082BCDRG4 pin-compatible with other TL082 variants?
Yes, TL082BCDRG4 uses the standard SOIC-8 (D) package with identical pinout to TL082CDR, TL082IDR, and TL082ACDR. All share the same 1–8 pin assignment: OUT A, IN− A, IN+ A, VCC−, IN+ B, IN− B, OUT B, VCC+. No PCB layout changes are required when substituting within the TL082x D-package family.
TL082BCDRG4 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
TL082BCDRG4 FAQ
1.How can I place an order for TL082BCDRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TL082BCDRG4 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 TL082BCDRG4 reliable?
The price and inventory of TL082BCDRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL082BCDRG4 is usually 5 days.
3.What payment methods are accepted for TL082BCDRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL082BCDRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL082BCDRG4?
TL082BCDRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL082BCDRG4 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 TL082BCDRG4?
For technical support, including TL082BCDRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL082BCDRG4 requirements.
6.How does Aetrix verify that TL082BCDRG4 is sourced from the original manufacturer or authorized distributors?
All TL082BCDRG4 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 TL082BCDRG4 meets industry standards.
7.What is the process for return or replacement of TL082BCDRG4?
All TL082BCDRG4 units undergo pre-shipment inspection (PSI). If there is an issue with TL082BCDRG4, 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 TL082BCDRG4 part is unused and in its original packaging.
Return procedure for TL082BCDRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TL082BCDRG4 Tags
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