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Texas Instruments TL082CMX/NOPB
- Part No.:
- TL082CMX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TL082CMX/NOPB.pdf
- Description:
- IC OPAMP JFET 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,217
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Product details
Overview
TL082CMX/NOPB from Texas Instruments is a dual JFET-input operational amplifier optimized for high-speed, low-noise analog signal conditioning in industrial and consumer systems. It delivers 4 MHz gain bandwidth, 13 V/μs slew rate, 15 mV max input offset voltage, 50 pA typical input bias current, and operates from ±18 V supplies across 0°C to +70°C. It is widely used in active filters, tone controls, and precision instrumentation front-ends.
For engineers reviewing the TL082CMX/NOPB datasheet, TL082CMX/NOPB pinout, TL082CMX/NOPB application, or TL082CMX/NOPB equivalent, this page provides verified electrical specifications, SOIC-8 package details, real-world use cases, and validated alternative options for design-in and BOM continuity planning.
Technical Context
The TL082CMX/NOPB integrates two independent high-input-impedance (10¹² Ω) JFET-input op-amps with internally trimmed offset voltage and zener-biased current sources. Its BI-FET II™ architecture enables low 1/f noise corner (50 Hz), low total harmonic distortion (≤0.02%), and stable operation on ±6 V to ±18 V supplies.
Each amplifier supports rail-to-rail common-mode input range up to ±15 V and delivers ±13.5 V output swing into 10 kΩ at ±15 V supply. Input stage protection eliminates need for external clamps, and differential input voltage tolerance reaches ±30 V independent of supply rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 4 MHz - Enables stable unity-gain stable operation up to 4 MHz or closed-loop gain of 10 at 400 kHz. |
| Slew Rate | 13 V/μs - Supports fast transient response in D/A output buffers and active filter stages without distortion. |
| Input Bias Current | 50 pA (typ) - Minimizes DC error in high-impedance sensor interfaces and integrator circuits. |
| Input Offset Voltage | 15 mV (max) - Internally trimmed for improved DC accuracy over temperature without external nulling. |
| Supply Voltage Range | ±18 V - Compatible with legacy ±15 V industrial power rails and tolerant of transient overvoltage conditions. |
| Common-Mode Input Range | ±15 V - Allows direct interfacing with signals referenced to supply rails in single-supply derived systems. |
| Output Voltage Swing | ±13.5 V (min) into 10 kΩ - Delivers >90% of rail-to-rail dynamic range for maximum signal fidelity. |
Pinout & Package
TL082CMX/NOPB is housed in an 8-pin SOIC (D) package per JEDEC MS-012 AA, 3.9 mm body width, 1.75 mm max height, with gull-wing leads and RoHS-compliant matte tin (Sn) finish. Pin 1 is marked by a beveled corner or dot in Q1 quadrant of tape-and-reel packaging.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Amplifier A) | High-impedance JFET gate node; accepts differential signal with ±30 V tolerance. |
| 2 | Non-Inverting Input (Amplifier A) | High-impedance JFET gate node; common-mode range extends to ±15 V. |
| 3 | Output (Amplifier A) | Class-AB push-pull output capable of ±13.5 V swing into 10 kΩ load. |
| 4 | Negative Supply (V−) | Reference for both amplifiers; must not be exceeded by either input voltage. |
| 5 | Non-Inverting Input (Amplifier B) | Independent high-Z input identical in specification to Pin 2. |
| 6 | Inverting Input (Amplifier B) | Independent high-Z input identical in specification to Pin 1. |
| 7 | Output (Amplifier B) | Independent output identical in performance and drive capability to Pin 3. |
| 8 | Positive Supply (V+) | Reference for both amplifiers; supports operation down to ±6 V supply. |
Key Features
| Feature | Design Value |
|---|---|
| Internally trimmed offset voltage | 15 mV max eliminates need for external nulling potentiometers in production designs. |
| Low input noise voltage | 16 nV/√Hz (typ) enables high-fidelity audio preamplification and low-level sensor signal conditioning. |
| Fast settling time | 2 μs to 0.01% supports high-speed sample-and-hold and multiplexed data acquisition systems. |
| High CMRR & PSRR | 100 dB (typ) common-mode and supply rejection minimizes interference in noisy industrial environments. |
| BI-FET II™ JFET input stage | Provides 10¹² Ω input impedance and avoids MOSFET gate leakage issues during handling or storage. |
Applications
| Active Tone Control | Instrumentation Amplifier Front-End |
|---|---|
|
Use Scenario: Three-band (bass/mid/treble) equalization in consumer audio equipment using passive RC networks and dual-op-amp feedback topology. IC Role / Device Role / Timing Role: Dual amplifier implements simultaneous inverting/non-inverting gain paths with matched AC coupling and frequency-selective feedback. Use Value: TL082CMX/NOPB's low THD (≤0.02%) and wide bandwidth preserve tonal clarity across 20 Hz–20 kHz while enabling precise boost/cut control. |
Use Scenario: High-CMRR differential signal amplification for bridge-based pressure or load-cell sensors in industrial monitoring systems. IC Role / Device Role / Timing Role: Configured as improved two-op-amp instrumentation amplifier with external resistor matching for enhanced common-mode rejection. Use Value: TL082CMX/NOPB's 100 dB CMRR (typ) and low input bias current prevent gain error drift caused by sensor lead resistance imbalance. |
| Fourth-Order Butterworth Filter | Ohms-to-Volts Transducer Interface |
|
Use Scenario: Anti-aliasing or reconstruction filtering in data acquisition systems requiring sharp roll-off and linear phase response. IC Role / Device Role / Timing Role: Two TL082CMX/NOPB amplifiers implement cascaded Sallen-Key stages for low-pass or high-pass transfer functions. Use Value: 4 MHz GBW and 13 V/μs slew rate ensure minimal group delay distortion and accurate step response up to 100 kHz cutoff. |
Use Scenario: Linear conversion of resistive sensor output (e.g., RTD, thermistor, strain gauge) into calibrated voltage for ADC input. IC Role / Device Role / Timing Role: Precision transimpedance or constant-current excitation amplifier with Kelvin sensing configuration. Use Value: 50 pA input bias current prevents significant voltage drop across high-value sense resistors (>100 kΩ), preserving measurement linearity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual JFET-input op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL072CDR | Lower input noise (18 nV/√Hz vs. 16 nV/√Hz), higher GBP (5 MHz), but 10 mV max VOS vs. 15 mV for TL082CMX/NOPB. | Better suited for ultra-low-noise audio preamps; less ideal where offset trim robustness matters more than noise floor. | Select TL072CDR when noise-limited SNR dominates; retain TL082CMX/NOPB for cost-sensitive industrial designs needing proven long-term stability. |
| RC4558DR | Bipolar input (vs. JFET), higher IB (300 nA typ), lower GBP (3 MHz), but wider temp range (−40°C to +85°C) and lower cost. | Acceptable in non-critical DC-coupled applications where input impedance >1 MΩ suffices and thermal drift is managed externally. | Choose RC4558DR only for legacy replacement or cost-driven consumer products; avoid in high-Z sensor or precision integrator roles. |
Compared with TL072CDR and RC4558DR, TL082CMX/NOPB offers superior input impedance and lower bias current for high-impedance source interfacing, while maintaining broader supply tolerance and proven reliability in industrial temperature-cycled environments - making it the preferred choice where JFET input integrity is non-negotiable.
Availability
TL082CMX/NOPB is available at Aetrix Electronics and suitable for active filter design, audio tone control, instrumentation front-end amplification, and transducer interface circuits requiring stable component supply and long-term BOM continuity.
Supply support for TL082CMX/NOPB 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
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and digital signal technologies, with decades of experience in high-reliability op-amp design and manufacturing.
The TL082 family was engineered for general-purpose, high-speed analog signal conditioning in industrial, audio, and test equipment - emphasizing JFET input integrity, internal offset trimming, and broad supply flexibility.
FAQ
What is the operating temperature range for TL082CMX/NOPB?
The TL082CMX/NOPB is rated for operation from 0°C to +70°C ambient temperature. This commercial-grade specification aligns with its SOIC-8 packaging and internal thermal design. The device's junction temperature must remain below 150°C under all operating conditions, and derating is required above 70°C ambient per its 115°C/W junction-to-ambient thermal resistance.
Is TL082CMX/NOPB pin-compatible with LM358 or LM1558?
TL082CMX/NOPB is pin-compatible with LM1558 but not with LM358. Both TL082CMX/NOPB and LM1558 use identical SOIC-8 and PDIP-8 pinouts (V−, Output A, In− A, In+ A, In+ B, In− B, Output B, V+). LM358 uses a different pin assignment: Output A, In− A, In+ A, V−, In+ B, In− B, Output B, V+, making direct substitution impossible without PCB revision.
Does TL082CMX/NOPB support single-supply operation?
TL082CMX/NOPB is not optimized for true single-supply operation. While it can function with a split supply derived from a single rail (e.g., using virtual ground), its input common-mode range does not extend to the negative rail - inputs must remain ≥3 V above V−. For dedicated single-supply designs, TI recommends alternatives like TLC272 or TLE2022 with rail-to-rail input capability.
What is the maximum differential input voltage rating for TL082CMX/NOPB?
The absolute maximum differential input voltage for TL082CMX/NOPB is ±30 V, independent of supply voltage. This rating stems from the high-voltage JFET input structure and allows safe operation with large-signal transients or mismatched input sources without requiring external clamping diodes - a key advantage over bipolar-input op-amps.
How does TL082CMX/NOPB differ from TL082CP/NOPB?
TL082CMX/NOPB and TL082CP/NOPB share identical electrical specifications and functional behavior but differ only in package and packaging format: TL082CMX/NOPB is in SOIC-8 (D) supplied in 2500-unit tape-and-reel, while TL082CP/NOPB is in PDIP-8 (P) supplied in 40-unit tubes. Both operate across 0°C to +70°C and meet the same TI production test standards.
TL082CMX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- 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:
- 13V/µs
- Gain Bandwidth Product:
- 4 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 50 pA
- Voltage - Input Offset:
- 5 mV
- Current - Supply:
- 3.6mA (x2 Channels)
- Current - Output / Channel:
- 17 mA
- Voltage - Supply Span (Min):
- 36 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TL082CMX/NOPB FAQ
1.How can I place an order for TL082CMX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for TL082CMX/NOPB 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 TL082CMX/NOPB reliable?
The price and inventory of TL082CMX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL082CMX/NOPB is usually 5 days.
3.What payment methods are accepted for TL082CMX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL082CMX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL082CMX/NOPB?
TL082CMX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL082CMX/NOPB 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 TL082CMX/NOPB?
For technical support, including TL082CMX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL082CMX/NOPB requirements.
6.How does Aetrix verify that TL082CMX/NOPB is sourced from the original manufacturer or authorized distributors?
All TL082CMX/NOPB 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 TL082CMX/NOPB meets industry standards.
7.What is the process for return or replacement of TL082CMX/NOPB?
All TL082CMX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with TL082CMX/NOPB, 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 TL082CMX/NOPB part is unused and in its original packaging.
Return procedure for TL082CMX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TL082CMX/NOPB Tags
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