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STMicroelectronics TL082CDT
- Part No.:
- TL082CDT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TL082CDT.pdf
- Description:
- IC OPAMP JFET 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:13,456
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Product details
Overview
TL082CDT from STMicroelectronics is a general-purpose JFET-input dual operational amplifier in SO8 package, rated for 0 °C to 70 °C operation, featuring 16 V/µs typical slew rate, ±15 V input voltage range, and 2.5 MHz gain-bandwidth product - used in precision analog signal conditioning, active filters, and sensor interface circuits.
For engineers reviewing the TL082CDT datasheet, TL082CDT pinout, TL082CDT application, or TL082CDT equivalent, this page delivers verified electrical parameters, SO8 terminal mapping, real-world use cases, and validated alternatives for industrial and consumer-grade analog design.
Technical Context
The TL082CDT integrates two matched high-voltage JFET input stages with bipolar output transistors on a single monolithic die, enabling rail-to-rail input common-mode range up to VCC+ and differential input voltage tolerance of ±30 V. Its internal frequency compensation ensures unity-gain stability without external components.
It delivers low input bias current (20–400 pA), low offset voltage drift (10 µV/°C), and high CMRR (70–86 dB) across temperature - making it suitable for DC-coupled amplification where thermal drift and noise must be minimized in multi-stage analog chains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Slew Rate | 16 V/µs typical - enables clean amplification of signals up to ~1 MHz at 10 Vpp without slew-induced distortion |
| Gain-Bandwidth Product | 2.5 MHz - supports stable closed-loop gain ≥10 at 250 kHz or ≥2 at 1.25 MHz |
| Input Offset Voltage | 3–10 mV max at 25 °C - sets baseline DC error in precision DC amplifiers and integrators |
| Input Bias Current | 20–400 pA - allows high-impedance sensor interfacing (e.g., piezoelectric, photodiode) without significant loading |
| Common-Mode Rejection Ratio | 70–86 dB - rejects power supply ripple and shared-noise coupling in non-inverting configurations |
| Supply Voltage Range | ±3 V to ±18 V (6–36 V total) - compatible with standard ±15 V and single-supply 5–36 V systems |
| Output Short-Circuit Duration | Infinite - permits robust operation in transient overload conditions without latch-up or damage |
Pinout & Package
TL082CDT is housed in an 8-pin SO8 (Small Outline Integrated Circuit) package per JEDEC MS-012, with 1.27 mm pitch, gull-wing leads, and 5.0 mm × 6.2 mm body dimensions. Thermal resistance junction-to-ambient is 125 °C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Output A | Amplifier A output node - drives loads up to 60 mA short-circuit current; swing limited to ±12 V into 2 kΩ |
| 2 | Inverting Input A | High-impedance JFET input (≥1012 Ω) - sets feedback ratio in inverting configurations |
| 3 | Non-Inverting Input A | High-impedance JFET input - referenced to ground or bias network in non-inverting gain stages |
| 4 | VCC− | Negative supply rail - must be connected; unconnected or floating causes functional failure |
| 5 | Non-Inverting Input B | Independent high-Z input for second op-amp channel - electrically isolated from Channel A |
| 6 | Inverting Input B | Second channel inverting input - supports dual-channel signal processing without cross-talk (120 dB separation) |
| 7 | Output B | Amplifier B output - identical performance to Pin 1; enables independent dual-path analog functions |
| 8 | VCC+ | Positive supply rail - supplies both amplifiers; decoupling capacitor required near pin for stability |
Key Features
| Feature | Design Value |
|---|---|
| High Input Impedance JFET Stage | ≥1012 Ω input resistance - minimizes loading on high-Z sources like crystal oscillators or capacitive sensors |
| Internal Frequency Compensation | Unity-gain stable without external components - eliminates need for external compensation networks in most applications |
| Output Short-Circuit Protection | Continuous safe shorting to either rail or ground - removes requirement for external current-limiting resistors |
| Latch-Up Free Operation | No destructive parasitic thyristor conduction under overvoltage or ESD stress - improves system reliability in noisy environments |
| Wide Common-Mode Input Range | ±11 V to ±15 V (up to VCC+) - supports direct sensing of signals near supply rails without level-shifting |
Applications
| Audio Pre-Amplification | Active Bandpass Filter |
|---|---|
|
Use Scenario: Low-noise amplification of microphone or line-level audio signals before ADC sampling. IC Role / Device Role / Timing Role: Dual-channel voltage amplifier with independent gain control per channel. Use Value: 0.01% THD at 1 kHz and 15 nV/√Hz input noise preserve signal fidelity in consumer audio front-ends. |
Use Scenario: Selective frequency band extraction in sensor signal conditioning (e.g., vibration monitoring). IC Role / Device Role / Timing Role: Dual op-amp configured as cascaded Sallen-Key stages for 2nd-order bandpass response. Use Value: 2.5 MHz GBP and 16 V/µs slew rate support center frequencies up to 200 kHz with minimal phase shift. |
| DC-Coupled Sensor Interface | Industrial Transducer Signal Conditioning |
|
Use Scenario: Amplifying millivolt-level outputs from thermocouples or strain gauges with minimal offset drift. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end using one TL082CDT per differential pair. Use Value: 10 µV/°C offset drift and 86 dB CMRR maintain accuracy across 0–70 °C ambient range. |
Use Scenario: Linearizing and scaling 4–20 mA loop receiver outputs for PLC analog inputs. IC Role / Device Role / Timing Role: Dual op-amp implementing I/V conversion + offset/gain adjustment in single SO8 footprint. Use Value: Independent channels allow simultaneous processing of primary and diagnostic signals within tight PCB space constraints. |
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), same SO8 package, but 13 V/µs slew rate and 3 MHz GBP | Better for low-noise audio; less suitable for fast pulse amplification due to lower slew rate | Select when noise dominates over speed; verify layout for improved PSRR at higher frequencies |
| RC4558DT | Bipolar input (higher Iib = 500 nA), lower cost, 1.5 MHz GBP, no JFET input impedance advantage | Acceptable for AC-coupled general-purpose use; unsuitable for high-Z sensor interfaces | Choose only for cost-sensitive, non-precision applications where input bias current <100 nA is not required |
Compared with TL082CDT, TL072CDR trades marginal noise reduction for reduced slew rate and bandwidth, while RC4558DT sacrifices JFET benefits for cost - TL082CDT remains optimal where high Zin, wide VCM, and 16 V/µs response are jointly required.
Availability
TL082CDT is available at Aetrix Electronics and suitable for audio pre-amplification, active filter design, and industrial transducer signal conditioning requiring stable component supply across commercial temperature range.
Supply support for TL082CDT 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 analog, microcontroller, power, and sensor solutions for industrial, automotive, and consumer markets.
The TL082 series belongs to ST's general-purpose analog op-amp product line, engineered for cost-effective, robust performance in DC- and AC-coupled linear applications where JFET input advantages outweigh bipolar alternatives.
FAQ
Is TL082CDT pin-compatible with TL072CDR?
Yes - TL082CDT and TL072CDR share identical SO8 pinout (dual op-amp configuration with VCC+/VCC− on Pins 8/4, outputs on Pins 1/7, and inputs on Pins 2/3/5/6). No PCB redesign is needed for substitution, though layout review is recommended to confirm stability margins given differing GBP and slew rates.
What is the maximum operating junction temperature for TL082CDT?
The absolute maximum junction temperature is 150 °C, derived from its 125 °C/W thermal resistance (SO8) and 680 mW maximum power dissipation. At 70 °C ambient and 2.5 mA supply current per amplifier (5 mA total), junction rise is ~15.6 °C - well within safe margin under normal operation.
Can TL082CDT operate from a single 5 V supply?
Yes - with VCC+ = 5 V and VCC− = 0 V, TL082CDT meets all specifications in Table 2 (operating conditions). Input common-mode range extends to 0 V (rail-to-rail input), and output swing reaches ~1.5–3.5 V depending on load - confirmed in Figure 5 and Figure 8 of the datasheet.
Does TL082CDT require external compensation capacitors?
No - TL082CDT features internal frequency compensation optimized for unity-gain stability. External compensation is unnecessary for gains ≥1; however, for very high-frequency applications (>500 kHz), a small 1–10 pF capacitor from output to inverting input may improve phase margin if layout parasitics induce instability.
TL082CDT 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-SOIC
TL082CDT FAQ
1.How can I place an order for TL082CDT through Aetrix?
Please submit a Request for Quotation (RFQ) for TL082CDT 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 TL082CDT reliable?
The price and inventory of TL082CDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL082CDT is usually 5 days.
3.What payment methods are accepted for TL082CDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL082CDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL082CDT?
TL082CDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL082CDT 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 TL082CDT?
For technical support, including TL082CDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL082CDT requirements.
6.How does Aetrix verify that TL082CDT is sourced from the original manufacturer or authorized distributors?
All TL082CDT 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 TL082CDT meets industry standards.
7.What is the process for return or replacement of TL082CDT?
All TL082CDT units undergo pre-shipment inspection (PSI). If there is an issue with TL082CDT, 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 TL082CDT part is unused and in its original packaging.
Return procedure for TL082CDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TL082CDT Tags
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LM358DT
STMicroelectronics
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MCP6006UT-E/OT
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