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Home > Products > Integrated Circuits (ICs) > Linear > Instrumentation, Op Amps, Buffer Amps

STMicroelectronics TL082CPT

Name: TL082CPT
Brand: STMicroelectronics
SKU: TL082CPT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TL082CPT

Manufacturer:: STMicroelectronics

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: 8-TSSOP (0.173", 4.40mm Width)

Datasheet:: TL082CPT.pdf

Description:: IC OPAMP JFET 2 CIRCUIT 8TSSOP

Quantity:: RFQ Add To RFQ list

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Inventory:42,023

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Product details

Overview

TL082CPT from STMicroelectronics is a general-purpose JFET-input dual operational amplifier in TSSOP-8 package, rated for 0 °C to 70 °C operation, with 16 V/µs typical slew rate, ±15 V max input voltage, and 2.5 MHz gain-bandwidth product. It delivers high input impedance (10¹² Ω), low input bias current (20–400 pA), and output short-circuit protection for precision analog signal conditioning in industrial sensor interfaces and audio preamplifiers.

For engineers reviewing the TL082CPT datasheet, TL082CPT pinout, TL082CPT application, or TL082CPT equivalent, key selection criteria include input offset voltage drift (10 µV/°C), common-mode rejection ratio (70–86 dB), supply voltage rejection (70–86 dB), output swing (±10 V into 2 kΩ), and thermal resistance (120 °C/W junction-to-ambient).

Technical Context

The TL082CPT integrates two matched JFET-input op-amps on a single monolithic die, using high-voltage JFETs for input stages and bipolar transistors for output stages. Its internal frequency compensation ensures unity-gain stability without external components, and latch-up-free design enables robust operation in mixed-signal environments.

It operates from ±3 V to ±18 V total supply (6–36 V), supports rail-to-rail input common-mode range up to V_CC+, and maintains 120 dB channel separation at Av = 100 - critical for dual-channel instrumentation where crosstalk must be minimized.

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 before slew-induced distortion dominates
Gain-Bandwidth Product	2.5 MHz - sets usable closed-loop bandwidth limit (e.g., 25 kHz at Av = 100)
Input Bias Current	20–400 pA at 25 °C - permits high-impedance sensor interfacing (e.g., piezoelectric or pH electrodes) without significant DC error
Input Offset Voltage	3–10 mV at 25 °C - defines minimum resolvable DC signal without trimming; drift ≤10 µV/°C limits thermal error in unregulated environments
Common-Mode Rejection	70–86 dB - suppresses noise coupled equally to both inputs (e.g., EMI on sensor cables)
Supply Voltage Range	±3 V to ±18 V (6–36 V total) - supports dual-supply systems from low-voltage portable gear to industrial ±15 V rails
Output Short-Circuit Duration	Infinite - allows safe continuous short-circuit operation without damage, simplifying fault-tolerant design

Pinout & Package

TL082CPT uses a 8-pin TSSOP (Thin Shrink Small Outline Package) with 0.65 mm lead pitch, 3.00 mm width, and 6.40 mm length - optimized for space-constrained PCB layouts while maintaining thermal performance (R_thJA = 120 °C/W).

Pin/Terminal	Circuit Role	Design Meaning
1	Output A	Amplifier A output node; capable of ±10 V swing into 2 kΩ load
2	Inverting Input A	Differential input for Amplifier A; high-impedance JFET gate (10¹² Ω)
3	Non-inverting Input A	Differential input for Amplifier A; same impedance and bias characteristics as Pin 2
4	V_CC−	Negative supply rail connection; must be decoupled locally to minimize noise coupling
5	Non-inverting Input B	Differential input for Amplifier B; electrically isolated but thermally coupled to Amplifier A
6	Inverting Input B	Differential input for Amplifier B; matches Pin 2 in offset and bias specs
7	Output B	Amplifier B output node; independent channel with 120 dB isolation from Output A
8	V_CC+	Positive supply rail connection; shared rail for both amplifiers; requires local 100 nF ceramic decoupling

Key Features

Feature	Design Value
High Input Impedance	10¹² Ω - minimizes loading on high-Z sources like crystal oscillators or capacitive sensors
Internal Frequency Compensation	Unity-gain stable - eliminates need for external compensation networks in standard configurations
Output Short-Circuit Protection	Continuous safe shorting to either rail or ground - removes need for external current-limiting resistors
Latch-Up Free Operation	Immune to parasitic SCR triggering - ensures reliability in noisy industrial power domains
Wide Common-Mode Range	Up to V_CC+ - enables direct interface with signals referenced to positive rail (e.g., current-sense amps)

Applications

Audio Preamp Stage

Industrial Sensor Signal Conditioning

Use Scenario: Dual-channel microphone preamplification in compact audio mixers requiring low-noise, low-distortion gain before ADC sampling.

IC Role / Device Role / Timing Role: Dual op-amp configured as non-inverting gain stage (Av = 20–100) per channel, leveraging matched JFET inputs for balanced noise performance.

Use Value: 0.01% THD at 1 kHz and 15 nV/√Hz input noise ensure clean signal capture without audible artifacts.

Use Scenario: Amplifying millivolt-level outputs from RTD or thermocouple front-ends in PLC analog input modules.

IC Role / Device Role / Timing Role: First-stage instrumentation amplifier core (with external resistors) providing differential gain and common-mode rejection before filtering.

Use Value: 86 dB CMRR and 70–86 dB SVRR suppress line-frequency interference and supply ripple in factory-floor environments.

Active Filter Bank

DC Motor Speed Reference Buffer

Use Scenario: Second-order Sallen-Key low-pass and band-pass filters in test equipment for spectral shaping of analog waveforms.

IC Role / Device Role / Timing Role: Dual op-amp implementing filter transfer functions with precise pole placement enabled by 2.5 MHz GBW and 16 V/µs slew rate.

Use Value: Stable unity-gain compensation allows accurate filter cutoffs up to ~250 kHz without peaking or phase shift anomalies.

Use Scenario: Isolating and buffering 0–10 V speed reference signals from PLC outputs to multiple motor drives in conveyor systems.

IC Role / Device Role / Timing Role: Unity-gain voltage follower per channel, exploiting high input impedance to prevent loading of source and low output impedance (<100 Ω) to drive long cables.

Use Value: ±10 V output swing into 2 kΩ and infinite short-circuit tolerance ensure uninterrupted reference delivery during cable 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
TL072CDR	Lower input noise (18 nV/√Hz vs. 15 nV/√Hz), identical pinout and supply range, but lower slew rate (13 V/µs)	Better suited for ultra-low-noise audio where bandwidth < 1 MHz suffices; less suitable for fast pulse conditioning	Select when noise dominates over speed; verify layout grounding due to higher noise sensitivity
RC4558IDR	Bipolar input (vs. JFET), higher input bias current (30–500 nA), lower input impedance (~300 kΩ), no short-circuit protection	Cost-optimized for non-critical consumer audio; unsuitable for high-Z sensor interfaces or fault-prone industrial wiring	Choose only for cost-sensitive, low-performance applications with grounded-sensor sources and stable supplies

Compared with TL082CPT, TL072CDR trades 20% lower slew rate for marginally better noise floor, while RC4558IDR sacrifices JFET advantages entirely - making TL082CPT the optimal balance of speed, input impedance, and ruggedness for industrial analog signal chains.

Availability

TL082CPT is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, audio preamplification, active filter implementation, and DC motor reference buffering requiring stable component supply across production lifecycles.

Supply support for TL082CPT 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 sensor ICs for industrial, automotive, and consumer markets.

The TL082 series belongs to ST's general-purpose analog op-amp product line, engineered for reliable, cost-effective signal amplification in non-precision industrial and audio applications where JFET input benefits outweigh laser-trimmed offset requirements.

FAQ

What is the maximum operating temperature range for TL082CPT?

The TL082CPT is specified for 0 °C to 70 °C free-air operating temperature. This commercial-grade rating distinguishes it from the TL082ID (–40 °C to 105 °C) variant. Operation outside this range may cause parametric shift beyond datasheet limits, especially in input offset voltage and slew rate.

Does TL082CPT require external compensation capacitors?

No - TL082CPT features internal frequency compensation optimized for unity-gain stability. External compensation is unnecessary in standard inverting, non-inverting, or voltage-follower configurations. Adding external capacitors may degrade phase margin and cause instability unless specifically designed for higher-gain (>10) or capacitive-load scenarios.

Can TL082CPT drive a 600 Ω audio load directly?

Not reliably - its output stage is rated for ±10 V into 2 kΩ, implying ~5 mA max continuous current. Driving 600 Ω at ±10 V would demand ~16.7 mA, exceeding safe operating limits and risking thermal shutdown or distortion. A dedicated line-driver buffer (e.g., BUF634) or external transistor stage is required for 600 Ω loads.

Is TL082CPT RoHS-compliant and halogen-free?

Yes - TL082CPT is manufactured in ST's ECOPACK®-compliant TSSOP-8 package, meeting RoHS Directive 2011/65/EU and halogen-free requirements per IEC 61249-2-21. The "P" in TL082CPT denotes the RoHS-compliant, lead-free, halogen-free TSSOP package variant per ST's ECOPACK2 specification.

TL082CPT Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 8-TSSOP (0.173", 4.40mm 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-TSSOP

TL082CPT FAQ

1.How can I place an order for TL082CPT through Aetrix?

Please submit a Request for Quotation (RFQ) for TL082CPT 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 TL082CPT reliable?

The price and inventory of TL082CPT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL082CPT is usually 5 days.

3.What payment methods are accepted for TL082CPT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL082CPT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TL082CPT?

TL082CPT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TL082CPT 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 TL082CPT?

For technical support, including TL082CPT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL082CPT requirements.

6.How does Aetrix verify that TL082CPT is sourced from the original manufacturer or authorized distributors?

All TL082CPT 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 TL082CPT meets industry standards.

7.What is the process for return or replacement of TL082CPT?

All TL082CPT units undergo pre-shipment inspection (PSI). If there is an issue with TL082CPT, 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 TL082CPT part is unused and in its original packaging.

Return procedure for TL082CPT:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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