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STMicroelectronics TL082ACDT
- Part No.:
- TL082ACDT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TL082ACDT.pdf
- Description:
- IC OPAMP JFET 2 CIRCUIT 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:4,994
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Product details
Overview
TL082ACDT from STMicroelectronics is a general-purpose JFET-input dual operational amplifier in SO8 package, featuring 16 V/µs typical slew rate, ±15 V input common-mode range, 2.5 MHz gain-bandwidth product, 10¹² Ω input resistance, and output short-circuit protection - used in precision analog signal conditioning for industrial sensor interfaces.
For engineers reviewing the TL082ACDT datasheet, TL082ACDT pinout, TL082ACDT application, or TL082ACDT equivalent, key selection criteria include input offset voltage (max 6 mV at 25°C), supply voltage range (±3 V to ±18 V), thermal resistance (125 °C/W for SO8), and JFET-input stage performance in high-impedance source applications.
Technical Context
The TL082ACDT integrates two matched high-voltage JFET-input op-amps on a single monolithic die, with internal frequency compensation enabling stable unity-gain operation. Its differential input stage delivers low input bias current (20–400 pA) and high CMRR (70–86 dB), supporting rail-to-rail input voltage swing up to ±11 V with ±15 V supplies.
Designed for linear signal processing, it uses bipolar output stages with short-circuit protection and exhibits 0.01% THD at 1 kHz. Phase margin is specified at 45°, and channel separation reaches 120 dB, enabling dual-channel isolation in active filter and instrumentation amplifier topologies without crosstalk degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Slew Rate | 16 V/µs typical - enables faithful reproduction of fast-changing signals up to ~1 MHz at 10 Vpp without slew-induced distortion |
| Gain-Bandwidth Product | 2.5 MHz - sets usable closed-loop bandwidth to ~250 kHz at gain = 10 |
| Input Offset Voltage | 3–6 mV max at 25°C - defines minimum resolvable DC signal error in precision amplification |
| Input Bias Current | 20–400 pA - permits use with high-impedance sources (e.g., piezoelectric sensors, photodiode transimpedance) |
| Common-Mode Range | ±11 V (with ±15 V supply) - supports inputs near supply rails without phase reversal or clipping |
| Output Short-Circuit Duration | Infinite - allows safe continuous short-circuit operation without latch-up or permanent damage |
| Supply Voltage Range | ±3 V to ±18 V - accommodates dual-supply systems from low-power portable to industrial line-powered designs |
Pinout & Package
TL082ACDT is supplied in an SO8 (Small Outline 8-pin) surface-mount package with standard 1.27 mm pitch, 5.00 mm width, and 125 °C/W junction-to-ambient thermal resistance. Pin numbering follows JEDEC MS-012AA outline.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Output A | Amplifier A output - drives external load or feedback network; capable of ±12 V swing into 2 kΩ |
| 2 | Inverting Input A | High-impedance inverting node for amplifier A - accepts signals down to −12 V with ±15 V supplies |
| 3 | Non-inverting Input A | High-impedance non-inverting node for amplifier A - supports common-mode voltages up to +11 V |
| 4 | VCC− | Negative supply rail - must be connected to system ground or negative voltage; reference for all internal biasing |
| 5 | Non-inverting Input B | High-impedance non-inverting node for amplifier B - electrically isolated from channel A with 120 dB separation |
| 6 | Inverting Input B | High-impedance inverting node for amplifier B - shares same JFET input structure and bias characteristics as pin 2 |
| 7 | Output B | Amplifier B output - independent output stage with identical AC/DC specs to pin 1 |
| 8 | VCC+ | Positive supply rail - connects to +V supply; powers both amplifiers and internal compensation network |
Key Features
| Feature | Design Value |
|---|---|
| High Input Impedance JFET Stage | 10¹² Ω input resistance enables minimal loading of high-Z sources like pH electrodes or capacitive sensors |
| Internal Frequency Compensation | Unity-gain stable without external components - simplifies design of buffers, followers, and low-gain amplifiers |
| Output Short-Circuit Protection | Continuous safe shorting to either rail or ground - eliminates need for external current-limiting resistors in test fixtures |
| Latch-Up Free Operation | Immune to destructive latch-up under overvoltage or ESD stress - improves reliability in unregulated environments |
| Wide Common-Mode Range | Operates with inputs up to ±11 V on ±15 V supplies - supports direct interfacing to transducers without level-shifting |
Applications
| Instrumentation Amplifier Front-End | Active Low-Pass Filter (10 kHz) |
|---|---|
Use Scenario: Amplifying microvolt-level thermocouple outputs in industrial PLC analog input modules. IC Role / Device Role / Timing Role: Dual op-amp configured as precision difference amplifier and gain stage with matched JFET inputs minimizing offset drift. Use Value: 6 mV max input offset and 10 µV/°C drift ensure <0.5°C measurement error across 0–100°C range without recalibration. | Use Scenario: Anti-aliasing filtering before 100 kSPS ADC in motor control current sensing. IC Role / Device Role / Timing Role: Second-order Sallen-Key topology using both amplifiers for 40 dB/dec roll-off and low-pass response shaping. Use Value: 2.5 MHz GBP and 16 V/µs slew rate support clean 10 kHz cutoff with <0.1% group delay variation across passband. |
| Photodiode Transimpedance Amplifier | Audio Line Driver (Line-Out) |
Use Scenario: Converting nanoamp photocurrent from ambient light sensor into calibrated voltage for MCU ADC. IC Role / Device Role / Timing Role: Single amplifier in transimpedance configuration with feedback resistor and capacitor for stability. Use Value: 20–400 pA input bias current prevents significant error in 1 MΩ–100 MΩ feedback networks used for nA-range photocurrents. | Use Scenario: Driving 600 Ω professional audio lines from DAC output in embedded media player. IC Role / Device Role / Timing Role: Unity-gain buffer with low THD (0.01%) and high output drive capability (±12 V into 2 kΩ). Use Value: 0.01% THD at 1 kHz and 120 dB channel separation prevent audible crosstalk and harmonic distortion in stereo paths. |
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 |
|---|---|---|---|
| TL082CDT | Wider input offset voltage (max 10 mV vs. 6 mV), commercial temperature range (0–70°C vs. −40–70°C) | Suitable for cost-sensitive consumer electronics where extended temp range not required | Select when full industrial temperature range and tighter offset spec are unnecessary |
| OPA2134PA | Lower noise (8 nV/√Hz vs. 15 nV/√Hz), lower THD (0.00008% vs. 0.01%), higher GBP (8 MHz vs. 2.5 MHz) | Better suited for high-fidelity audio and precision data acquisition requiring sub-mV offset and ultra-low distortion | Choose for audio-grade performance or when >4 MHz closed-loop bandwidth needed |
Compared with TL082CDT, TL082ACDT offers tighter offset and extended temperature range; compared with OPA2134PA, it trades noise and bandwidth for lower cost and broader supply tolerance (±18 V vs. ±15 V), making it optimal for robust industrial signal conditioning where moderate precision suffices.
Availability
TL082ACDT is available at Aetrix Electronics and suitable for industrial sensor interfaces, analog front-end modules, and embedded signal conditioning circuits requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TL082ACDT 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, designing and manufacturing microcontrollers, power ICs, analog chips, and MEMS sensors for automotive, industrial, and consumer markets.
The TL082 series belongs to ST's general-purpose analog op-amp product line, engineered for cost-effective, reliable linear signal processing in industrial control, test equipment, and legacy-compatible designs where JFET input advantages outweigh newer CMOS alternatives.
FAQ
What is the maximum supply voltage for TL082ACDT?
The absolute maximum supply voltage is ±18 V, but recommended operating range is ±3 V to ±18 V. Exceeding ±18 V risks permanent damage per Table 1 in the datasheet. Derating is advised above 85°C ambient due to thermal limits - power dissipation must stay below 680 mW with SO8 package's 125 °C/W RthJA.
Does TL082ACDT require external compensation?
No - TL082ACDT features internal frequency compensation optimized for unity-gain stability. External compensation is unnecessary for gains ≥1; however, for very high-speed applications (>1 MHz closed-loop), layout parasitics may require minor PCB-level damping, but no capacitor or resistor additions to the IC itself are specified or recommended.
Can TL082ACDT drive capacitive loads directly?
It can drive up to 100 pF without instability, as verified in Figure 17 (pulse response) and parameter test conditions (CL = 100 pF). For larger capacitive loads (e.g., >500 pF), a series isolation resistor (typically 50–100 Ω) between output and load is required to maintain phase margin and prevent ringing or oscillation.
Is TL082ACDT pin-compatible with other TL082 variants?
Yes - TL082ACDT shares identical SO8 pinout and electrical behavior with TL082CDT, TL082IDT, and TL082BCDT. Differences lie only in grading (A-grade offset, C-grade temp range) and marking; all share same schematic symbol, footprint, and functional interface - enabling drop-in replacement within same temperature and precision requirements.
TL082ACDT 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:
- 0°C ~ 70°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
TL082ACDT FAQ
1.How can I place an order for TL082ACDT through Aetrix?
Please submit a Request for Quotation (RFQ) for TL082ACDT 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 TL082ACDT reliable?
The price and inventory of TL082ACDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL082ACDT is usually 5 days.
3.What payment methods are accepted for TL082ACDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL082ACDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL082ACDT?
TL082ACDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL082ACDT 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 TL082ACDT?
For technical support, including TL082ACDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL082ACDT requirements.
6.How does Aetrix verify that TL082ACDT is sourced from the original manufacturer or authorized distributors?
All TL082ACDT 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 TL082ACDT meets industry standards.
7.What is the process for return or replacement of TL082ACDT?
All TL082ACDT units undergo pre-shipment inspection (PSI). If there is an issue with TL082ACDT, 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 TL082ACDT part is unused and in its original packaging.
Return procedure for TL082ACDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TL082ACDT 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
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MCP6006T-E/OT
Microchip Technology
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MCP6006UT-E/OT
Microchip Technology
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LM324PWR
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LM2902PWR
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LM2902DR
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LM358P
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