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STMicroelectronics TL082BCDT
- Part No.:
- TL082BCDT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TL082BCDT.pdf
- Description:
- IC OPAMP JFET 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:15,652
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Product details
Overview
TL082BCDT from STMicroelectronics is a high-speed JFET-input dual operational amplifier in TSSOP-8 package, rated for 0 °C to 70 °C operation, featuring 16 V/µs typical slew rate, ±15 V input common-mode range, and 2.5–4 MHz gain-bandwidth product - used in precision analog signal conditioning, active filters, and sensor interface circuits.
For engineers reviewing the TL082BCDT datasheet, TL082BCDT pinout, TL082BCDT application, or TL082BCDT equivalent, key selection criteria include input offset voltage (1–3 mV max at 25 °C), low input bias current (≤200 pA), high CMRR (70–86 dB), output short-circuit protection, and SO8/TSSOP8 package compatibility for space-constrained PCB layouts.
Technical Context
The TL082BCDT integrates two matched JFET-input op-amps on a single die with internal frequency compensation, enabling stable unity-gain operation without external components. Its high input impedance (>1012 Ω) and low input offset drift (10 µV/°C) support DC-coupled precision amplification across industrial temperature ranges.
It operates from ±3 V to ±18 V supply rails (6–36 V total), delivers ±12 V output swing into 10 kΩ load, and maintains phase margin ≥45° - making it suitable for closed-loop configurations including transimpedance amplifiers, voltage followers, and multi-stage active filters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Slew Rate | 16 V/µs typical - enables faithful reproduction of fast-rising signals up to ~1 MHz at 10 Vpp without slew-induced distortion. |
| Gain-Bandwidth Product | 2.5–4 MHz - defines maximum usable closed-loop bandwidth at given gain (e.g., 200 kHz at gain = 20). |
| Input Offset Voltage | 1–3 mV (max, 25 °C) - sets baseline DC error in precision DC amplification; critical for sensor front-ends. |
| Input Bias Current | 20–400 pA (max, 25 °C) - ensures minimal loading of high-impedance sources like piezoelectric sensors or photodiodes. |
| Common-Mode Rejection Ratio | 70–86 dB - suppresses noise coupled equally to both inputs, essential in noisy industrial environments. |
| Supply Voltage Range | ±3 V to ±18 V (6–36 V total) - supports dual-rail operation in legacy analog systems and battery-powered instrumentation. |
| Output Short-Circuit Duration | Infinite - allows safe continuous short-circuit operation without latch-up or permanent damage. |
Pinout & Package
TL082BCDT is supplied in a RoHS-compliant, lead-free TSSOP-8 (Thin Shrink Small Outline Package) with 0.65 mm pitch, 3.0 mm × 6.4 mm body, and thermal resistance RthJA = 120 °C/W - optimized for compact, thermally constrained PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Output A | Amplifier A output node; drives loads up to ±12 V into 10 kΩ with <10% overshoot. |
| 2 | Inverting Input A | High-impedance (1012 Ω) JFET input; accepts differential signals up to ±15 V relative to ground. |
| 3 | Non-inverting Input A | Matched to Pin 2; enables precision differential sensing and zero-drift configurations. |
| 4 | VCC− | Negative supply rail connection; must be decoupled locally to minimize noise coupling. |
| 5 | Non-inverting Input B | Independent second op-amp input; electrically isolated from Channel A for dual-path signal processing. |
| 6 | Inverting Input B | Matches Pin 2 characteristics; supports identical gain/offset performance as Channel A. |
| 7 | Output B | Second independent output; shares same slew rate, GBW, and short-circuit robustness as Output A. |
| 8 | VCC+ | Positive supply rail; requires local 100 nF ceramic decoupling for stability under dynamic load. |
Key Features
| Feature | Design Value |
|---|---|
| High Input Impedance JFET Stage | ≥1012 Ω input resistance - minimizes signal source loading in high-Z sensor interfaces (e.g., pH electrodes, piezo elements). |
| Internal Frequency Compensation | Unity-gain stable without external components - reduces BOM count and layout complexity in basic amplifier designs. |
| Output Short-Circuit Protection | Continuous safe shorting to either rail or ground - eliminates need for external current-limiting resistors in test fixtures or fault-prone systems. |
| Latch-Up Free Operation | Guaranteed immunity to parasitic SCR conduction - ensures reliability in mixed-signal ICs sharing power domains with digital logic. |
| Wide Common-Mode Input Range | ±11 V to ±15 V - supports rail-to-rail input operation in ±15 V systems, enabling direct interfacing with DAC outputs or transducer bridges. |
Applications
| Audio Pre-Amplifier | Active Bandpass Filter |
|---|---|
|
Use Scenario: Low-noise amplification of microphone or line-level audio signals prior to ADC sampling. IC Role / Device Role / Timing Role: Dual-channel voltage amplifier providing gain ≥20 dB with THD ≤0.01% at 1 kHz and 2 Vpp output. Use Value: JFET input preserves signal integrity from high-impedance microphones; dual topology enables stereo or differential input paths. |
Use Scenario: Selective frequency band extraction (e.g., 1–10 kHz) in vibration monitoring or ECG signal conditioning. IC Role / Device Role / Timing Role: Dual op-amp configured as cascaded Sallen-Key stages for 4th-order bandpass response with Q > 5. Use Value: 4 MHz GBP and 16 V/µs slew rate maintain filter shape fidelity up to 100 kHz; matched channels ensure amplitude/phase symmetry. |
| Thermocouple Signal Conditioning | Industrial Sensor Interface |
|
Use Scenario: Cold-junction compensation and linearization of K-type thermocouple outputs in PLC analog input modules. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end with programmable gain and offset correction. Use Value: 1–3 mV input offset and 10 µV/°C drift minimize temperature-induced measurement error over 0–70 °C operating range. |
Use Scenario: Signal conditioning for 4–20 mA loop-powered pressure or flow transmitters in factory automation. IC Role / Device Role / Timing Role: Dual op-amp implementing I/V conversion and output buffering with galvanic isolation interface. Use Value: High CMRR (≥70 dB) rejects common-mode noise from long cable runs; infinite short-circuit tolerance protects against loop wiring faults. |
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 | Same SO8/TSSOP8 footprint and electrical specs, but rated only for 0–70 °C commercial temp range (vs. TL082BCDT's B-grade tighter offset spec). | Identical use cases, but lacks guaranteed 1–3 mV offset; acceptable where cost sensitivity outweighs precision requirements. | Select TL082CDT when full B-grade offset performance is unnecessary and standard commercial grade suffices. |
| RC4558DT | Bipolar-input dual op-amp (not JFET); higher input bias current (50 nA vs. 200 pA), lower slew rate (1.7 V/µs), no guaranteed short-circuit duration. | Not suitable for high-Z sources or fast pulse amplification; limited to general-purpose AC-coupled applications. | Choose RC4558DT only for non-critical, low-frequency (<100 kHz), low-cost consumer applications where JFET advantages are not required. |
Compared with TL082CDT and RC4558DT, TL082BCDT delivers superior DC precision (lower Vio, Iib), faster dynamics (16 V/µs slew), and robust fault tolerance - justifying its use in industrial sensor signal chains where accuracy and reliability are non-negotiable.
Availability
TL082BCDT is available at Aetrix Electronics and suitable for industrial sensor interfaces, audio pre-amplifiers, and active filter designs requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.
Supply support for TL082BCDT 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, MCU, power, and sensor solutions for automotive, industrial, and consumer markets.
TL082BCDT belongs to ST's legacy precision analog portfolio - engineered specifically for cost-sensitive yet performance-demanding industrial and instrumentation applications requiring JFET input benefits without premium pricing.
FAQ
What is the maximum supply voltage for TL082BCDT?
The absolute maximum supply voltage is ±18 V (36 V total), but recommended operating range is ±3 V to ±18 V per Table 2. Exceeding ±18 V risks permanent damage to internal junctions and voids warranty compliance.
Does TL082BCDT require external compensation capacitors?
No - TL082BCDT features internal frequency compensation and is unity-gain stable. External compensation is unnecessary for standard inverting/non-inverting configurations; only required for specialized high-Q filter topologies or decompensated variants.
Is TL082BCDT pin-compatible with TL082CDT?
Yes - both share identical TSSOP-8 pinout and electrical behavior. TL082BCDT replaces TL082CDT in applications demanding tighter input offset voltage (1–3 mV vs. 3–10 mV), while maintaining full mechanical and functional interchangeability.
What is the thermal resistance of TL082BCDT in TSSOP-8 package?
The junction-to-ambient thermal resistance (RthJA) is 120 °C/W for the TSSOP-8 package, as specified in Table 1. This value assumes standard JEDEC 2S2P board layout; actual thermal performance improves with copper pour and thermal vias under the exposed pad (if present).
TL082BCDT 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:
- 1 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
TL082BCDT FAQ
1.How can I place an order for TL082BCDT through Aetrix?
Please submit a Request for Quotation (RFQ) for TL082BCDT 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 TL082BCDT reliable?
The price and inventory of TL082BCDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL082BCDT is usually 5 days.
3.What payment methods are accepted for TL082BCDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL082BCDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL082BCDT?
TL082BCDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL082BCDT 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 TL082BCDT?
For technical support, including TL082BCDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL082BCDT requirements.
6.How does Aetrix verify that TL082BCDT is sourced from the original manufacturer or authorized distributors?
All TL082BCDT 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 TL082BCDT meets industry standards.
7.What is the process for return or replacement of TL082BCDT?
All TL082BCDT units undergo pre-shipment inspection (PSI). If there is an issue with TL082BCDT, 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 TL082BCDT part is unused and in its original packaging.
Return procedure for TL082BCDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TL082BCDT Tags
-
LM358DT
STMicroelectronics
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LM358DR
Texas Instruments
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LM2904DR
Texas Instruments
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LM358ADR
Texas Instruments
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LM2904DGKR
Texas Instruments
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LM324DR
Texas Instruments
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MCP6006T-E/OT
Microchip Technology
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MCP6006UT-E/OT
Microchip Technology
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LM324PWR
Texas Instruments
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LM2902PWR
Texas Instruments
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LM2902DR
Texas Instruments
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LM358P
Texas Instruments
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