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Texas Instruments TL082CDRG4
- Part No.:
- TL082CDRG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TL082CDRG4.pdf
- Description:
- IC OPAMP JFET 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,586
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Product details
Overview
TL082CDRG4 from Texas Instruments is a dual JFET-input operational amplifier optimized for precision AC and DC signal conditioning in industrial and audio systems. It delivers 5.25 MHz gain-bandwidth, 20 V/μs slew rate, ±15 V supply operation, 100 dB CMRR, and 0.003% THD+N at 1 kHz - enabling high-fidelity amplification in pro audio mixers and battery test equipment.
For engineers reviewing the TL082CDRG4 datasheet, TL082CDRG4 pinout, TL082CDRG4 application, or TL082CDRG4 equivalent, this page provides verified electrical specifications, SOIC-8 package layout, real-world use cases in motor drive feedback loops and UPS power stages, and two validated alternative op-amps with documented functional trade-offs.
Technical Context
The TL082CDRG4 implements a high-input-impedance JFET differential pair front-end with internal frequency compensation, supporting stable unity-gain operation. Its input stage operates with common-mode voltage extending to VCC+, enabling rail-to-rail input capability in single-supply configurations up to 40 V total.
It features low 1.4 µVRMS (0.1–10 Hz) input voltage noise and 37 nV/√Hz spectral density at 1 kHz, paired with output short-circuit protection and EMI/RF filtering - making it suitable for noisy industrial environments where signal integrity must be preserved across wide temperature ranges (0°C to 70°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | ±2.25 V to ±20 V (or 4.5 V to 40 V single supply) - supports legacy ±15 V systems and modern wide-range industrial rails |
| Gain-Bandwidth Product | 5.25 MHz - enables stable closed-loop gain of ≥10 at 500 kHz for anti-aliasing or active filter stages |
| Slew Rate | 20 V/μs - preserves transient fidelity in fast-switching motor control feedback paths |
| Input Offset Voltage | 3 mV (max) at 25°C - ensures ≤15 mV error in 5 V full-scale sensor amplification without trimming |
| CMRR | 100 dB (min) - rejects >100,000:1 common-mode interference in differential transducer interfaces |
| THD+N | 0.003% (typ) at 1 kHz - meets pro-audio line-level signal chain requirements |
| Quiescent Current | 1.4 mA per amplifier - balances performance and power in dual-channel portable instrumentation |
Pinout & Package
TL082CDRG4 is supplied in an 8-pin SOIC (Small Outline Integrated Circuit) package with standard JEDEC MS-012AC footprint (body width 3.9 mm, lead pitch 1.27 mm), compatible with automated SMT assembly and IPC-7351B land patterns.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Output of Amplifier A | Low-impedance voltage source driving external load or next-stage input; short-circuit protected |
| 2 | Inverting Input of Amplifier A | High-impedance node (≥1012 Ω) accepting feedback or signal inversion; sensitive to PCB leakage |
| 3 | Non-inverting Input of Amplifier A | High-impedance reference point for buffer or non-inverting gain stages; common-mode range includes VCC+ |
| 4 | Negative Supply (VCC–) | Return path for dual-supply operation; must be decoupled locally with 0.1 µF ceramic capacitor |
| 5 | Non-inverting Input of Amplifier B | Independent high-Z input for second channel; electrically isolated from Channel A except via shared supply rails |
| 6 | Inverting Input of Amplifier B | Second channel's inverting node; identical bias current and offset characteristics as Pin 2 |
| 7 | Output of Amplifier B | Independent output with same drive strength and settling behavior as Pin 1 |
| 8 | Positive Supply (VCC+) | Main power rail; requires local 0.1 µF + 10 µF decoupling to suppress supply-induced crosstalk |
Key Features
| Feature | Design Value |
|---|---|
| JFET input stage | Input bias current ≤200 pA enables high-impedance sensor interfacing (e.g., piezoelectric transducers) without significant DC error |
| Common-mode input to VCC+ | Supports single-supply operation with input signals referenced to ground while maintaining full dynamic range |
| Integrated EMI/RF filters | Reduces susceptibility to 1 GHz RF interference in switch-mode power supply environments |
| Output short-circuit protection | Allows safe operation into accidental shorts or capacitive loads up to 300 pF without latch-up or damage |
| Wide temperature range (0°C to 70°C) | Validated performance across commercial ambient conditions without derating in office or lab equipment |
Applications
| Pro Audio Mixer Channel | Battery Test Equipment |
|---|---|
Use Scenario: Amplifying microphone or line-level signals before ADC sampling in multi-channel analog mixing consoles. IC Role / Device Role / Timing Role: Dual-channel voltage amplifier providing gain, buffering, and active filtering in each signal path. Use Value: 0.003% THD+N and 37 nV/√Hz noise preserve audio fidelity; dual configuration reduces board space vs discrete op-amps. | Use Scenario: Precision sensing of voltage/current during charge/discharge cycles of Li-ion and lead-acid batteries. IC Role / Device Role / Timing Role: Dual op-amp implementing current-sense amplifier and battery voltage monitor with independent scaling. Use Value: 3 mV max offset ensures ≤0.5% measurement error at 5 V full scale; 5.25 MHz GBW supports fast transient detection during fault events. |
| Motor Drive Feedback Loop | Single-Phase Online UPS |
Use Scenario: Closed-loop speed and current regulation in AC induction or BLDC motor inverters using hall-effect or shunt-based sensing. IC Role / Device Role / Timing Role: Signal conditioner for analog feedback signals feeding into PWM controller or microcontroller ADC inputs. Use Value: 20 V/μs slew rate handles rapid current transients; ±20 V supply tolerance accommodates high-voltage gate driver supplies. | Use Scenario: Voltage regulation and waveform shaping in line-interactive UPS systems converting AC input to clean sine-wave output. IC Role / Device Role / Timing Role: Dual op-amp performing error amplification in voltage control loop and zero-crossing detection for relay switching. Use Value: 100 dB CMRR rejects mains-borne noise; dual-channel integration simplifies feedback architecture and improves channel matching. |
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 |
|---|---|---|---|
| TL082IDR | Same SOIC-8 package and pinout; rated for –40°C to 85°C industrial temperature range vs TL082CDRG4's 0°C to 70°C | Required for extended-temperature deployments in outdoor or uncontrolled environments | Select TL082IDR when operating ambient exceeds 70°C or requires wider thermal margin |
| OPA2134PA | Lower 8 nV/√Hz noise, 0.1 µV/°C drift, and rail-to-rail output - but higher $0.85/unit cost and no short-circuit protection | Preferred in ultra-low-noise audio preamps where output protection is handled externally | Choose OPA2134PA only when noise or drift dominates design constraints and external protection is implemented |
Compared with TL082IDR, TL082CDRG4 offers lower cost and sufficient performance for commercial-grade instrumentation, while OPA2134PA trades robustness for precision - making TL082CDRG4 optimal for cost-sensitive, thermally stable dual-op-amp signal chains.
Availability
TL082CDRG4 is available at Aetrix Electronics and suitable for pro audio mixer design, battery test equipment development, and motor drive feedback loop implementation requiring stable component supply across production lifecycles.
Supply support for TL082CDRG4 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 for industrial, automotive, and personal electronics markets.
The TL08x family was engineered as cost-optimized, high-slew-rate JFET-input op-amps for general-purpose precision analog signal conditioning in commercial and industrial equipment.
FAQ
What is the maximum supply voltage rating for TL082CDRG4?
The TL082CDRG4 supports a total supply voltage (VCC+ to VCC–) of up to 40 V, or ±20 V in dual-supply mode. Absolute maximum ratings specify 42 V for most packages, but TI recommends staying within 40 V for reliable long-term operation under all conditions including transients and temperature extremes. This allows direct compatibility with standard ±15 V and +24 V industrial rails.
Does TL082CDRG4 include internal EMI filtering?
Yes, TL082CDRG4 integrates on-die electromagnetic interference (EMI) and RF filters, confirmed in the official datasheet Section 3. This feature provides 53 dB EMI rejection ratio at 1 GHz, significantly reducing susceptibility to noise from nearby switch-mode power supplies or radio-frequency sources - a key advantage over legacy TL082 variants without this enhancement.
Can TL082CDRG4 operate with input voltages beyond the supply rails?
No - the TL082CDRG4 input stage is diode-clamped to the supply rails. Inputs exceeding VCC+ or falling below VCC– by more than 0.5 V must be current-limited to ≤10 mA to prevent damage. Its common-mode range extends *to* VCC+, but not beyond it; for true rail-to-rail input operation, consider newer alternatives like OPA2134 or TLV2462.
What is the typical quiescent current per channel for TL082CDRG4?
The TL082CDRG4 draws 1.4 mA per amplifier (2.8 mA total) under typical conditions with no load and ±15 V supplies. This value increases slightly with supply voltage and temperature - reaching up to 2.5 mA per channel at ±20 V and 70°C - enabling predictable power budgeting in dual-channel instrumentation designs.
Is TL082CDRG4 pin-compatible with other TL082 variants in SOIC-8?
Yes, TL082CDRG4 uses the industry-standard SOIC-8 (D package) pinout defined in Table 4-3 of the datasheet, matching TL082IDR, TL082CP, and TL082ACDR. All share identical pin functions: Pins 1/7 = outputs, 2/6 = inverting inputs, 3/5 = non-inverting inputs, 4 = VCC–, 8 = VCC+. No PCB changes are required when substituting within the same package variant.
TL082CDRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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
TL082CDRG4 FAQ
1.How can I place an order for TL082CDRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TL082CDRG4 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 TL082CDRG4 reliable?
The price and inventory of TL082CDRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL082CDRG4 is usually 5 days.
3.What payment methods are accepted for TL082CDRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL082CDRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL082CDRG4?
TL082CDRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL082CDRG4 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 TL082CDRG4?
For technical support, including TL082CDRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL082CDRG4 requirements.
6.How does Aetrix verify that TL082CDRG4 is sourced from the original manufacturer or authorized distributors?
All TL082CDRG4 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 TL082CDRG4 meets industry standards.
7.What is the process for return or replacement of TL082CDRG4?
All TL082CDRG4 units undergo pre-shipment inspection (PSI). If there is an issue with TL082CDRG4, 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 TL082CDRG4 part is unused and in its original packaging.
Return procedure for TL082CDRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TL082CDRG4 Tags
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LM358DR
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