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STMicroelectronics TL071CN
- Part No.:
- TL071CN
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
TL071CN.pdf
- Description:
- IC OPAMP JFET 1 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,136
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Product details
Overview
TL071CN from STMicroelectronics is a low-noise JFET-input single operational amplifier designed for precision analog signal conditioning in audio, instrumentation, and sensor interface circuits. It delivers 16 V/µs slew rate, 15 nV/√Hz input voltage noise (typ), ±11 V common-mode input range, and 2.5 MHz gain-bandwidth product - enabling high-fidelity amplification in DC-coupled and AC-coupled configurations up to 100 kHz.
For engineers reviewing the TL071CN datasheet, TL071CN pinout, TL071CN application, or TL071CN equivalent, key selection criteria include input bias current (≤20 pA typ), offset voltage drift (10 µV/°C), output short-circuit protection, and DIP8 package compatibility with legacy through-hole PCB layouts.
Technical Context
The TL071CN uses a monolithic JFET-bipolar hybrid process to achieve high input impedance (>10¹² Ω) and low input bias current while maintaining robust output drive capability. Its internal frequency compensation ensures unity-gain stability without external components across supply voltages from ±3 V to ±18 V.
It features dual offset-null pins (1 and 5) for precise DC calibration, rail-to-rail-compatible output swing (±12 V into 2 kΩ at ±15 V supplies), and latch-up-free operation over 0°C to +70°C ambient temperature - meeting industrial-grade reliability requirements without automotive or military qualification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | ±3 V to ±18 V - supports dual-rail operation in both low-voltage portable and high-dynamic-range industrial systems |
| Slew Rate | 16 V/µs (typ) - enables faithful reproduction of fast transients in audio preamps and active filters |
| Input Noise Voltage | 15 nV/√Hz (typ, 1 kHz) - critical for low-level sensor signal amplification without added thermal noise floor |
| Input Bias Current | 20 pA (typ, +25°C) - minimizes DC error in high-impedance source interfaces like piezoelectric sensors |
| Gain-Bandwidth Product | 2.5 MHz (typ) - allows stable closed-loop gain ≥10 at 250 kHz, suitable for anti-aliasing and reconstruction filters |
| Common-Mode Range | ±11 V (min) - permits direct connection to signals referenced near supply rails in single-supply derived systems |
| Output Short-Circuit Duration | Infinite - eliminates need for external current-limiting resistors in fault-prone test equipment designs |
Pinout & Package
Dual-in-line plastic package (DIP8), 0.3-inch body width, through-hole mount. RoHS-compliant, lead-free second-level interconnect per ECOPACK® specification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Offset Null 1 | Connects to one end of 100 kΩ potentiometer for trimming input offset voltage |
| 2 | Inverting Input | High-impedance JFET gate node; accepts feedback network for stable inverting configurations |
| 3 | Non-inverting Input | High-impedance JFET gate node; used for reference voltage buffering or non-inverting gain stages |
| 4 | VCC− | Negative supply rail connection; must be decoupled locally with 100 nF ceramic capacitor |
| 5 | Offset Null 2 | Connects to opposite end of same potentiometer as Pin 1 for balanced null adjustment |
| 6 | Output | Class-AB output stage capable of ±10 mA continuous drive into 2 kΩ load |
| 7 | VCC+ | Positive supply rail connection; requires local 100 nF ceramic decoupling |
| 8 | No Connect | Internally unconnected; must remain floating - no external tie required |
Key Features
| Feature | Design Value |
|---|---|
| Low harmonic distortion | 0.01 % THD (1 kHz, 2 Vpp output) - preserves waveform integrity in audio line drivers and tone generators |
| High CMRR | 80 dB (min) - rejects power supply ripple and EMI in differential sensing applications |
| Internal frequency compensation | Unity-gain stable without external components - reduces BOM count and layout sensitivity |
| Latch-up free operation | Guaranteed under all valid operating conditions - prevents catastrophic failure during overvoltage transients |
| Output short-circuit protection | Thermally limited current limiting - sustains indefinite short to either rail without damage |
Applications
| Audio Pre-amplifier | Active Bandpass Filter |
|---|---|
Use Scenario: Low-noise amplification of microphone or phono cartridge signals before ADC sampling. IC Role / Device Role / Timing Role: Primary gain stage with DC-coupled input and adjustable offset nulling for zero-drift baseline. Use Value: 15 nV/√Hz noise floor ensures >90 dB SNR for 10 mV RMS inputs; 16 V/µs slew rate avoids slew-induced distortion at 20 kHz. | Use Scenario: Frequency-selective signal extraction in vibration monitoring systems (e.g., bearing fault detection). IC Role / Device Role / Timing Role: Dual-opamp implementation of state-variable topology with independent Q and center-frequency tuning. Use Value: 2.5 MHz GBW supports Q > 50 at 1 kHz; low Iib prevents filter pole drift from bias current loading. |
| DC Precision Reference Buffer | High-Voltage Sensor Interface |
Use Scenario: Isolation and gain staging of thermocouple or RTD bridge outputs in data acquisition modules. IC Role / Device Role / Timing Role: Unity-gain follower with offset nulling to eliminate sensor offset errors before digitization. Use Value: 10 µV/°C drift limits total error to <100 µV over 0–70°C; ±11 V Vicm accommodates 10 V reference rails. | Use Scenario: Signal conditioning for industrial pressure transducers with 4–20 mA loop-powered outputs. IC Role / Device Role / Timing Role: Transimpedance amplifier converting current to voltage, followed by level-shifting and filtering. Use Value: 20 pA Iib avoids loading 100 kΩ sense resistors; ±18 V supply tolerance matches 24 V loop compliance margins. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar JFET-input op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL071CP | Same electrical specs, but packaged in SO-8 surface-mount format instead of DIP8 | Requires PCB redesign for SMT assembly; lacks through-hole mounting for prototyping or repair | Select when board space is constrained and automated assembly is used |
| LF356N | Higher slew rate (12 V/µs vs. 16 V/µs), higher input noise (18 nV/√Hz), no offset-null pins | Not suitable for ultra-low-noise or precision DC applications requiring offset trimming | Select only if offset nulling is unnecessary and higher speed is prioritized over noise |
Compared with TL071CP and LF356N, the TL071CN uniquely combines DIP8 through-hole compatibility, factory-trimmable offset via dual null pins, and lowest noise among legacy JFET op-amps - making it optimal for lab-grade instrumentation and serviceable industrial hardware.
Availability
TL071CN is available at Aetrix Electronics and suitable for audio pre-amplifiers, active filter design, and DC precision reference buffering requiring stable component supply across long-lifecycle industrial programs.
Supply support for TL071CN 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, delivering silicon solutions for smart mobility, power management, and analog/mixed-signal applications since 1987.
The TL071 belongs to ST's legacy precision analog op-amp product line, engineered specifically for cost-sensitive, high-reliability industrial and audio signal conditioning where JFET input performance outweighs modern CMOS alternatives.
FAQ
What is the maximum supply voltage for TL071CN?
The absolute maximum supply voltage is ±18 V, meaning the total differential supply can be up to 36 V. Operation beyond this risks permanent damage. For reliable long-term use, ST recommends staying within ±15 V, especially at elevated temperatures, to maintain specified slew rate and avoid thermal runaway in the output stage.
Does TL071CN require external compensation capacitors?
No - the TL071CN is internally frequency-compensated for unity-gain stability. Adding external compensation capacitors is unnecessary and may degrade bandwidth or cause instability. This simplifies design in standard inverting/non-inverting configurations and eliminates layout sensitivity associated with external compensation networks.
Can TL071CN drive a 600 Ω audio load directly?
No - the TL071CN is not rated for continuous 600 Ω loads. Its output short-circuit current is 10–40 mA, limiting safe drive to ≥2 kΩ loads at full swing. For 600 Ω interfacing, use an external buffer stage (e.g., discrete emitter follower or dedicated line driver IC) to prevent thermal overload and distortion.
Is the TL071CN pin-compatible with other TL07x variants?
Yes - all TL07x devices (TL071, TL072, TL074) share identical pinouts within the same package type (e.g., DIP8 for TL071, DIP14 for TL072). However, electrical differences exist: TL071CN has C-grade temperature range (0°C to +70°C), while TL071IN offers extended range (−40°C to +105°C) and tighter initial offset specs.
TL071CN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Amplifier Type:
- J-FET
- Number of Circuits:
- 1
- 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:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-DIP
TL071CN FAQ
1.How can I place an order for TL071CN through Aetrix?
Please submit a Request for Quotation (RFQ) for TL071CN 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 TL071CN reliable?
The price and inventory of TL071CN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL071CN is usually 5 days.
3.What payment methods are accepted for TL071CN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL071CN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL071CN?
TL071CN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL071CN 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 TL071CN?
For technical support, including TL071CN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL071CN requirements.
6.How does Aetrix verify that TL071CN is sourced from the original manufacturer or authorized distributors?
All TL071CN 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 TL071CN meets industry standards.
7.What is the process for return or replacement of TL071CN?
All TL071CN units undergo pre-shipment inspection (PSI). If there is an issue with TL071CN, 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 TL071CN part is unused and in its original packaging.
Return procedure for TL071CN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TL071CN Tags
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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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