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Texas Instruments TL082CM/NOPB
- Part No.:
- TL082CM/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TL082CM/NOPB.pdf
- Description:
- IC OPAMP JFET 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:541
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Product details
Overview
TL082CM/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 - enabling use in active filters, tone controls, and precision instrumentation front-ends.
For engineers reviewing the TL082CM/NOPB datasheet, TL082CM/NOPB pinout, TL082CM/NOPB application, or TL082CM/NOPB equivalent, this device serves as a direct upgrade path from LM1558/LM358 designs requiring higher slew rate, lower input bias current, wider bandwidth, and improved CMRR without PCB layout changes.
Technical Context
The TL082CM/NOPB integrates two independent JFET-input op-amp channels with internally trimmed offset voltage (BI-FET II™ architecture), zener-biased input stages enabling stable operation down to ±6 V supplies, and high-impedance (>10¹² Ω) inputs that minimize loading on high-Z sources like piezoelectric sensors or photodiode transimpedance nodes.
Its AC performance is defined by a 4 MHz unity-gain bandwidth and 13 V/μs slew rate, supporting fast settling (2 μs to 0.01%) and low distortion (<0.02% THD), while DC accuracy is maintained via 10 μV/°C offset drift and 70–100 dB common-mode and power-supply rejection over temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 4 MHz - supports stable closed-loop gain ≥10 at 400 kHz, suitable for anti-aliasing and reconstruction filters. |
| Slew Rate | 13 V/μs - enables clean 10 Vpp output at ≥200 kHz without slewing distortion in audio and data-acquisition circuits. |
| Input Bias Current | 50 pA typ - preserves signal integrity in high-impedance sensor interfaces (e.g., pH electrodes, photodiodes) without significant offset error. |
| Input Offset Voltage | 15 mV max - ensures ≤150 mV output error at unity gain into 10 kΩ load; trimmed for reduced calibration burden. |
| Supply Voltage Range | ±18 V - accommodates rail-to-rail input common-mode range up to ±15 V, compatible with legacy ±15 V analog systems. |
| Input Noise Density | 16 nV/√Hz - contributes <1.6 μV RMS noise in 10 kHz bandwidth, critical for low-level signal amplification. |
| Common-Mode Rejection | 70–100 dB - rejects interference from shared ground paths in multi-channel data loggers and motor control feedback loops. |
Pinout & Package
TL082CM/NOPB uses an 8-pin SOIC (D) package (JEDEC MS-012 AA, TI package D0008A), 3.91 mm wide, 4.9 mm long, 1.75 mm max height, with gull-wing leads and Sn lead finish. Pin 1 is marked by a beveled corner or dot.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Output A | Amplifier A output node; drives loads ≥2 kΩ to ±10 V over full temperature range. |
| 2 | Inverting Input A | High-impedance (10¹² Ω) JFET input; accepts differential signals up to ±30 V; common-mode range ±15 V. |
| 3 | Non-Inverting Input A | Matched high-Z input; paired with Pin 2 for precision differential gain configurations. |
| 4 | V− | Negative supply rail connection; must remain ≥ −18 V; exceeding negative common-mode limit forces output high. |
| 5 | Non-Inverting Input B | Independent second channel input; electrically isolated from Channel A except for shared supply rails. |
| 6 | Inverting Input B | Second channel inverting input; supports identical gain, bandwidth, and noise specs as Channel A. |
| 7 | Output B | Amplifier B output; fully functional at same AC/DC specs as Output A; no crosstalk >−120 dB. |
| 8 | V+ | Positive supply rail; supports operation from +6 V to +18 V; gain bandwidth degrades below ±6 V. |
Key Features
| Feature | Design Value |
|---|---|
| JFET input stage | Enables 50 pA input bias current and 10¹² Ω input impedance - essential for interfacing with high-Z sensors without signal degradation. |
| Internally trimmed offset | 15 mV max VOS eliminates need for external nulling circuitry in cost-sensitive industrial controls and audio preamps. |
| Low 1/f noise corner | 50 Hz - ensures minimal low-frequency noise in DC-coupled applications such as strain gauge amplifiers and thermocouple conditioning. |
| Fast 0.01% settling | 2 μs - supports multiplexed data acquisition at ≥250 kSPS with minimal inter-channel settling error. |
| High slew rate | 13 V/μs - maintains fidelity of fast transient signals in pulse amplification and active filter step response. |
Applications
| Active Audio Tone Control | Instrumentation Amplifier Front-End |
|---|---|
Use Scenario: Three-band bass/mid/treble equalization in consumer audio mixers and guitar effects pedals using passive RC networks and dual-op-amp topology. IC Role / Device Role / Timing Role: Dual-channel voltage-controlled gain block implementing simultaneous inverting/non-inverting paths with matched AC response. Use Value: 4 MHz GBW and low THD (<0.02%) preserve harmonic integrity across 20 Hz–20 kHz; SOIC packaging enables compact PCB layout. |
Use Scenario: High-CMRR signal conditioning for bridge-based sensors (load cells, pressure transducers) in industrial weighing and test equipment. IC Role / Device Role / Timing Role: Precision difference amplifier core with externally matched resistors to achieve >136 dB CMRR at 1400× gain. Use Value: 100 dB min CMRR and 10 μV/°C offset drift ensure stable millivolt-level measurements despite noisy plant-floor environments. |
| Fourth-Order Butterworth Filter | Ohms-to-Volts Transducer Interface |
Use Scenario: Anti-aliasing and reconstruction filtering in 16-bit ADC/DAC subsystems for programmable logic controllers and motor drive feedback loops. IC Role / Device Role / Timing Role: Dual op-amp implementing cascaded Sallen-Key stages with precise pole placement and minimal phase distortion. Use Value: 13 V/μs slew rate prevents waveform clipping at filter cutoff frequencies up to 100 kHz; matched channels simplify bilinear transform design. |
Use Scenario: Linear conversion of resistance changes (e.g., RTDs, thermistors, potentiometers) into calibrated voltage outputs for microcontroller ADC input. IC Role / Device Role / Timing Role: Constant-current source + precision buffer configuration delivering ratiometric, temperature-stable output voltage. Use Value: 50 pA input bias current avoids measurement error in high-resistance sensor legs (>10 kΩ); 15 mV VOS limits absolute error to <150 mV full-scale. |
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 |
|---|---|---|---|
| TL072CP/NOPB | Lower input noise (18 nV/√Hz → 12 nV/√Hz), 10 V/μs slew rate, same pinout and supply range. | Better suited for ultra-low-noise audio preamplification where THD and noise floor dominate over speed. | Select TL072CP/NOPB when noise spectral density and distortion are prioritized over slew rate and settling time. |
| RC4558DR | Bipolar input (vs JFET), 500 nA IB, 1.5 MHz GBW, 0.6 V/μs slew rate, same SOIC-8 footprint. | Lower cost alternative for non-critical DC-coupled applications where input impedance >1 MΩ suffices. | Choose RC4558DR only in cost-driven, low-bandwidth (<100 kHz), low-precision designs where JFET advantages are unnecessary. |
Compared with TL082CM/NOPB, TL072CP/NOPB improves noise and distortion but sacrifices 23% slew rate and 33% bandwidth; RC4558DR reduces cost and complexity but trades away 4 orders of magnitude in input impedance and 2.7× bandwidth - making TL082CM/NOPB the balanced choice for general-purpose high-Z, medium-speed analog signal chains.
Availability
TL082CM/NOPB is available at Aetrix Electronics and suitable for industrial automation, audio signal processing, and sensor interface applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant SOIC packaging.
Supply support for TL082CM/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 heritage in precision op-amp design and manufacturing.
The TL082 family was engineered for cost-effective, high-performance analog signal conditioning in industrial, consumer, and instrumentation systems - emphasizing JFET input benefits without premium pricing.
FAQ
What is the maximum supply voltage for TL082CM/NOPB?
The TL082CM/NOPB supports a maximum supply voltage of ±18 V across its V+ and V− pins. Operation beyond this rating risks permanent damage. Derating is required at elevated ambient temperatures per thermal resistance (115°C/W for SOIC), and minimum recommended supply is ±6 V to maintain specified gain bandwidth and slew rate.
Does TL082CM/NOPB have rail-to-rail input or output capability?
No, TL082CM/NOPB does not feature rail-to-rail input or output. Its input common-mode voltage range extends to ±15 V with ±18 V supplies, and output swing is typically ±12 V into 10 kΩ. For true rail-to-rail operation, consider modern alternatives like OPA2340 or TLV2462 - TL082CM/NOPB is designed for traditional ±15 V analog systems.
Can TL082CM/NOPB replace LM358 in existing designs?
TL082CM/NOPB is not a drop-in replacement for LM358 due to different input architecture (JFET vs bipolar), higher supply current (3.6 mA vs 0.7 mA), and incompatible pin mapping (LM358 uses single-supply pinout). However, it can upgrade LM1558 designs directly - TL082CM/NOPB shares identical pinout and electrical compatibility with LM1558, not LM358.
What is the input bias current specification for TL082CM/NOPB at 70°C?
At Tj ≤ 70°C, the TL082CM/NOPB input bias current is specified at up to 8 nA. This reflects junction leakage doubling every ~10°C above 25°C; the 50 pA typical value applies only at 25°C. Designers must account for this exponential rise when using TL082CM/NOPB in high-temperature sensor front-ends.
Is TL082CM/NOPB suitable for driving capacitive loads?
TL082CM/NOPB is not inherently unity-gain stable with heavy capacitive loads. Driving >100 pF directly may cause peaking or oscillation. Stable operation requires isolation via a series resistor (≥100 Ω) or use of a dedicated buffer stage. The TL082CM/NOPB datasheet recommends external compensation for loads exceeding 50 pF in high-gain configurations.
TL082CM/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- 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
TL082CM/NOPB FAQ
1.How can I place an order for TL082CM/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for TL082CM/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 TL082CM/NOPB reliable?
The price and inventory of TL082CM/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL082CM/NOPB is usually 5 days.
3.What payment methods are accepted for TL082CM/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL082CM/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL082CM/NOPB?
TL082CM/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL082CM/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 TL082CM/NOPB?
For technical support, including TL082CM/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL082CM/NOPB requirements.
6.How does Aetrix verify that TL082CM/NOPB is sourced from the original manufacturer or authorized distributors?
All TL082CM/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 TL082CM/NOPB meets industry standards.
7.What is the process for return or replacement of TL082CM/NOPB?
All TL082CM/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with TL082CM/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 TL082CM/NOPB part is unused and in its original packaging.
Return procedure for TL082CM/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TL082CM/NOPB Tags
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LM358DT
STMicroelectronics
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LM358DR
Texas Instruments
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LM2904DR
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LM358ADR
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LM2904DGKR
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MCP6006T-E/OT
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MCP6006UT-E/OT
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LM324PWR
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LM2902DR
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LM358P
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