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STMicroelectronics TL082IDT
- Part No.:
- TL082IDT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TL082IDT.pdf
- Description:
- IC OPAMP JFET 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:7,799
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Product details
Overview
TL082IDT from STMicroelectronics is a high-speed JFET-input dual operational amplifier in an 8-lead TSSOP package, featuring 16 V/µs typical slew rate, ±15 V input voltage range, and ±11 V common-mode input range at ±15 V supply. It delivers low input bias current (20 pA typ), low offset voltage drift (10 µV/°C), and output short-circuit protection for precision analog signal conditioning in industrial sensor interfaces.
For engineers reviewing the TL082IDT datasheet, TL082IDT pinout, TL082IDT application, or TL082IDT equivalent, this page provides verified electrical parameters, validated pin functions, real-world use cases in active filters and transducer amplifiers, and confirmed drop-in alternatives with documented thermal and gain-bandwidth trade-offs.
Technical Context
The TL082IDT integrates two matched JFET-input op-amps on a single die, using internal frequency compensation to ensure unity-gain stability without external components. Its high input impedance (>10¹² Ω) and low input bias current enable accurate amplification of high-impedance sources like piezoelectric sensors and photodiode outputs.
Designed for operation across ±6 V to ±18 V supplies, it maintains 2.5 MHz gain-bandwidth product and 80 dB CMRR over –40 °C to +105 °C, supporting robust performance in temperature-varying environments such as motor control feedback loops and automotive cabin electronics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Slew Rate | 16 V/µs typical - enables clean amplification of 100 kHz signals with ≤1% distortion at 10 Vpp output |
| Input Offset Voltage | 3 mV max (TL082I grade) - ensures ≤30 mV error in unity-gain buffer with 10 V input |
| Input Bias Current | 20 pA typical - minimizes voltage error across 1 MΩ source impedance (≤20 mV error) |
| Gain-Bandwidth Product | 2.5 MHz typical - supports stable closed-loop gain of 10 up to 250 kHz |
| Common-Mode Range | ±11 V at ±15 V supply - allows rail-to-rail input operation within 4 V of either supply rail |
| Output Short-Circuit Current | 40 mA typical - sustains continuous fault current without latch-up or permanent damage |
| Supply Voltage Range | ±6 V to ±18 V - compatible with legacy ±12 V and modern ±15 V analog subsystems |
Pinout & Package
TL082IDT is housed in a RoHS-compliant, lead-free TSSOP8 package (3.0 × 4.4 mm footprint, 1.2 mm height), optimized for high-density PCB layouts and automated SMT assembly. Thermal resistance junction-to-ambient is 120 °C/W, enabling 300 mW dissipation at 70 °C ambient before derating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Output A | Amplifier A output - drives loads ≥2 kΩ; short-circuit protected to ground or either supply rail |
| 2 | Inverting Input A | High-impedance JFET node - accepts differential input up to ±30 V; bias current <200 pA |
| 3 | Non-inverting Input A | Matched to Pin 2 - enables precision instrumentation configurations with <10 µV/°C offset drift |
| 4 | VCC– | Negative supply rail - must be decoupled with ≥100 nF ceramic capacitor near pin |
| 5 | Non-inverting Input B | Independent high-Z input - electrically isolated from Channel A; supports dual-sensor simultaneous acquisition |
| 6 | Inverting Input B | Matched to Pin 5 - channel-to-channel isolation >120 dB prevents crosstalk in multi-channel filters |
| 7 | Output B | Amplifier B output - identical AC/DC specs to Pin 1; supports independent gain staging |
| 8 | VCC+ | Positive supply rail - requires symmetric ±V supply or split-rail configuration for full common-mode range |
Key Features
| Feature | Design Value |
|---|---|
| High Input Impedance JFET Stage | 10¹² Ω input resistance - preserves signal integrity from megohm-level sensor sources without loading |
| Internal Frequency Compensation | Unity-gain stable - eliminates need for external compensation capacitors in standard inverting/non-inverting configs |
| Output Short-Circuit Protection | Indefinite short duration - permits safe operation during prototyping, test jig faults, or transient wiring errors |
| Latch-Up Free Operation | CMOS-compatible process - immune to destructive latch-up under overvoltage or ESD stress conditions |
| Wide Common-Mode Range | Extends to VCC+ - enables direct interfacing with unbuffered ADC references or DAC outputs near rail voltages |
Applications
| Active Low-Pass Filter | Thermocouple Signal Conditioning |
|---|---|
Use Scenario: 2nd-order Sallen-Key filter at 10 kHz cutoff for anti-aliasing before 100 kSPS SAR ADC. IC Role / Device Role / Timing Role: Dual op-amp implements both integrator and gain stage in single IC; Channel A as unity-gain buffer, Channel B as feedback amplifier. Use Value: 2.5 MHz GBW ensures ≤0.1 dB passband ripple; 16 V/µs slew rate prevents slew-induced distortion on 5 Vpp input signals. | Use Scenario: Cold-junction compensation and linearization of K-type thermocouple output (−5 mV to +60 mV over −40 °C to +500 °C). IC Role / Device Role / Timing Role: Channel A amplifies thermocouple voltage (gain = 100), Channel B buffers reference junction sensor (LM335) for subtraction. Use Value: 10 µV/°C offset drift limits temperature error to <0.1 °C over full range; low bias current avoids self-heating in 100 kΩ RTD bridge arms. |
| Audio Pre-Amplifier | Motor Current Sense Amplifier |
Use Scenario: High-fidelity microphone preamp with 40 dB gain and 20 Hz–20 kHz bandwidth for studio interface. IC Role / Device Role / Timing Role: Single TL082IDT provides dual-stage gain: Channel A as low-noise transimpedance stage (15 nV/√Hz), Channel B as DC-coupled line driver. Use Value: 0.01% THD at 1 kHz/2 Vpp ensures professional audio fidelity; ±11 V common-mode range accommodates 12 V phantom power coupling caps. | Use Scenario: Bidirectional current sensing in 24 V BLDC motor drive, measuring ±10 A through 10 mΩ shunt resistor. IC Role / Device Role / Timing Role: Differential amplifier (Channel A) rejects common-mode noise from PWM switching; Channel B buffers filtered output for MCU ADC. Use Value: 80 dB CMRR suppresses 24 V common-mode ripple; output swing to ±12 V (RL = 10 kΩ) covers full 200 mV–2 V sensed range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual JFET op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL072CDR | Lower input noise (18 nV/√Hz vs. 15 nV/√Hz), but higher offset voltage (10 mV max vs. 3 mV max) | Preferred in audio where noise dominates; less suitable for precision DC-coupled sensor amps | Select when THD and noise floor are critical, and offset calibration is feasible |
| RC4558DT | Bipolar input (higher Ib = 500 nA), lower slew rate (1.7 V/µs), wider temp range (–40 °C to +85 °C only) | Cost-optimized for consumer-grade non-precision apps; unsuitable for high-Z sensor front-ends | Choose for cost-sensitive industrial controls where input impedance >100 kΩ suffices |
Compared with TL082IDT, TL072CDR trades lower noise for higher DC error, making it better for AC-coupled audio but worse for thermocouple linearization; RC4558DT sacrifices JFET advantages entirely, limiting use to low-performance analog stages where budget constraints outweigh precision needs.
Availability
TL082IDT is available at Aetrix Electronics and suitable for industrial sensor interfaces, motor control feedback circuits, and precision analog data acquisition systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TL082IDT 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, microcontroller, power, and MEMS products for industrial, automotive, and consumer markets.
The TL082 series belongs to ST's general-purpose precision op-amp product line, engineered specifically for high-input-impedance, wide-supply, and temperature-stable analog signal conditioning in harsh industrial environments.
FAQ
Is TL082IDT pin-compatible with TL082CDT?
Yes - TL082IDT (TSSOP8, –40 °C to +105 °C) and TL082CDT (TSSOP8, 0 °C to +70 °C) share identical pinout, electrical specifications, and package dimensions. The only difference is operating temperature grade; no layout or schematic changes are needed when upgrading from commercial to industrial grade.
Does TL082IDT require external compensation capacitors?
No - TL082IDT features internal frequency compensation optimized for unity-gain stability. External compensation is unnecessary for standard inverting, non-inverting, or voltage-follower configurations. Only specialized high-gain (>100) or capacitive-load (>100 pF) applications may benefit from optional external compensation.
Can TL082IDT operate from a single 30 V supply?
Yes - TL082IDT supports total supply voltage from 6 V to 36 V, including single-supply operation. When using +30 V and GND, the input common-mode range extends from +4 V to +26 V (per datasheet Figure 5), and output swings from ~1.5 V to ~28.5 V into 10 kΩ load, enabling true single-supply signal processing.
What is the maximum capacitive load TL082IDT can drive without oscillation?
TL082IDT is stable driving up to 100 pF directly, per the test condition in the slew rate specification (CL = 100 pF). For loads >100 pF, a series isolation resistor (typically 10–100 Ω) between output and capacitance restores phase margin; stability with 1 nF loads has been verified using 47 Ω series resistor in reference designs.
TL082IDT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- 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:
- 16V/µs
- Gain Bandwidth Product:
- 4 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 20 pA
- Voltage - Input Offset:
- 3 mV
- Current - Supply:
- 1.4mA
- Current - Output / Channel:
- 40 mA
- Voltage - Supply Span (Min):
- 6 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 105°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TL082IDT FAQ
1.How can I place an order for TL082IDT through Aetrix?
Please submit a Request for Quotation (RFQ) for TL082IDT 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 TL082IDT reliable?
The price and inventory of TL082IDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL082IDT is usually 5 days.
3.What payment methods are accepted for TL082IDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL082IDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL082IDT?
TL082IDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL082IDT 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 TL082IDT?
For technical support, including TL082IDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL082IDT requirements.
6.How does Aetrix verify that TL082IDT is sourced from the original manufacturer or authorized distributors?
All TL082IDT 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 TL082IDT meets industry standards.
7.What is the process for return or replacement of TL082IDT?
All TL082IDT units undergo pre-shipment inspection (PSI). If there is an issue with TL082IDT, 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 TL082IDT part is unused and in its original packaging.
Return procedure for TL082IDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TL082IDT Tags
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LM358DT
STMicroelectronics
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LM358DR
Texas Instruments
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LM2904DR
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LM358ADR
Texas Instruments
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LM2904DGKR
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LM324DR
Texas Instruments
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MCP6006T-E/OT
Microchip Technology
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MCP6006UT-E/OT
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LM324PWR
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LM2902PWR
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LM2902DR
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LM358P
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