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onsemi TL071CD
- Part No.:
- TL071CD
- Manufacturer:
- onsemi
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TL071CD.pdf
- Description:
- IC OPAMP JFET 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:21,393
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Product details
Overview
TL071CD from STMicroelectronics is a low-noise JFET-input single operational amplifier optimized for audio, instrumentation, and precision signal conditioning. It delivers 16 V/µs slew rate, 15 nV/√Hz input voltage noise (typ), and ±11 V common-mode input range with ±15 V supply, operating across 0°C to +70°C. Used in high-fidelity preamplifiers and active filters where low distortion (0.01% THD) and high input impedance (>10¹² Ω) are critical.
For engineers reviewing the TL071CD datasheet, TL071CD pinout, TL071CD application, or TL071CD equivalent, key selection criteria include input bias current (20 pA typ), offset voltage (3 mV max), output swing (±10 V into 2 kΩ), and SO-8 package thermal resistance (125 °C/W).
Technical Context
The TL071CD implements a monolithic JFET-bipolar hybrid process enabling high-voltage operation (±18 V absolute max), internal frequency compensation for unity-gain stability, and latch-up-free behavior. Its JFET input stage provides ultra-low input bias current and high DC accuracy via matched transistor pairs.
It supports rail-to-rail output swing limitations (±12 V into 10 kΩ) and features built-in short-circuit protection with infinite duration rating under thermal limits. The dual offset-null pins (1 & 5) allow precise DC calibration in high-gain configurations without external trimming components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Slew Rate | 16 V/µs typical - enables clean amplification of fast transients up to ~1 MHz at unity gain without slew-induced distortion |
| Input Voltage Noise | 15 nV/√Hz at 1 kHz - critical for low-level audio and sensor signal integrity in microphone preamps and strain gauge interfaces |
| Input Bias Current | 20 pA typical - minimizes voltage error across high-impedance sources like piezoelectric sensors or photodiode feedback networks |
| Common-Mode Range | ±11 V with ±15 V supply - supports operation near supply rails, essential for single-supply-compatible designs using level-shifting |
| THD | 0.01% at 1 kHz - ensures fidelity in analog audio paths and measurement front-ends requiring minimal harmonic contamination |
| Gain-Bandwidth Product | 4 MHz typical - defines usable closed-loop bandwidth: e.g., 200 kHz at gain = 20, suitable for anti-aliasing and reconstruction filters |
| Supply Voltage Range | ±3 V to ±18 V - accommodates both low-power portable systems and industrial ±15 V legacy rails |
Pinout & Package
TL071CD is housed in an SO-8 plastic micropackage (JEDEC MS-012AC), 5.0 mm × 6.2 mm body, 1.27 mm pitch, with gull-wing leads and 125 °C/W junction-to-ambient thermal resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Offset Null 1 | Connects to one end of 100 kΩ potentiometer for fine-tuning input offset voltage in precision DC-coupled stages |
| 2 | Inverting Input | High-impedance JFET node accepting feedback network signals; sensitive to PCB leakage and guarding requirements |
| 3 | Non-inverting Input | High-impedance JFET node used for reference or signal injection; requires matched trace capacitance to Pin 2 for CMRR optimization |
| 4 | VCC− | Negative supply rail connection; must be decoupled locally with 100 nF ceramic capacitor to minimize PSRR degradation |
| 5 | Offset Null 2 | Connects to opposite end of same potentiometer as Pin 1; forms adjustable voltage divider injecting correction current into input stage |
| 6 | Output | Class-AB bipolar output stage capable of ±10 V swing into 2 kΩ; limited sourcing/sinking to ±40 mA short-circuit current |
| 7 | VCC+ | Positive supply rail connection; shares same decoupling best practice as Pin 4, critical for high-frequency stability |
| 8 | No Connect | Internally unconnected; must remain floating - no routing or grounding permitted to avoid parasitic coupling or ESD path disruption |
Key Features
| Feature | Design Value |
|---|---|
| Low Input Bias Current | 20 pA typical enables use with >1 MΩ source impedances without significant DC error accumulation |
| High Input Impedance | 10¹² Ω minimum ensures negligible loading on high-Z sensors such as electret microphones or pH electrodes |
| Output Short-Circuit Protection | Infinite-duration safe shorting to either rail or ground - eliminates need for external current-limiting resistors in test fixtures |
| Internal Frequency Compensation | Guarantees stable unity-gain operation without external compensation capacitors, reducing BOM count and layout sensitivity |
| Latch-Up Free Operation | Robust against transient overvoltage and power sequencing faults - prevents destructive failure during hot-plug or brown-out conditions |
Applications
| Audio Preamplifier | Active Bandpass Filter |
|---|---|
Use Scenario: Low-noise amplification of dynamic microphone output before ADC sampling in studio-grade audio interface. IC Role / Device Role / Timing Role: Primary gain stage with JFET input preserving signal-to-noise ratio; configured as non-inverting amplifier with gain = 100. Use Value: 15 nV/√Hz noise floor ensures <1 µV RMS integrated noise over 20 Hz–20 kHz, maintaining >110 dB SNR at full scale. | Use Scenario: 1 kHz bandpass filter for vibration monitoring in predictive maintenance systems using MEMS accelerometers. IC Role / Device Role / Timing Role: Dual-amplifier topology implementing second-order Sallen-Key response with Q = 5 and center frequency stability. Use Value: 0.01% THD and 4 MHz GBW enable accurate amplitude measurement of narrowband mechanical resonance without harmonic smearing. |
| DC Precision Reference Buffer | Photodiode Transimpedance Amplifier |
Use Scenario: Isolation and drive capability enhancement for 2.5 V voltage reference feeding multiple ADCs in data acquisition modules. IC Role / Device Role / Timing Role: Unity-gain buffer with offset nulling to eliminate drift-induced errors in multi-channel synchronized sampling. Use Value: 3 mV max input offset and 10 µV/°C drift ensure reference accuracy remains within ±0.5 LSB over 0–70°C ambient range. | Use Scenario: Converting nanoampere photocurrent from UV flame detector into measurable voltage for fire alarm logic. IC Role / Device Role / Timing Role: Transimpedance amplifier with 10 MΩ feedback resistor and guarded input traces to suppress leakage. Use Value: 20 pA input bias current prevents >20 mV error across 10 MΩ feedback, preserving linearity down to 100 nA signal levels. |
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 | DIP8 package, higher Rthja (85 °C/W), wider operating temp (0–70°C identical), same electrical specs | Preferred for prototyping, breadboarding, or through-hole production where SO-8 reflow is unavailable | Select when manual assembly, socketing, or thermal mass tolerance outweighs board space constraints |
| OPA134UA | Lower noise (8 nV/√Hz), lower THD (0.0008%), higher GBP (8 MHz), but higher supply current (4 mA vs 1.4 mA) | Better suited for ultra-high-fidelity audio or metrology where noise and distortion dominate over power budget | Choose only if system-level SNR or THD margin justifies 2.8× higher quiescent power and cost premium |
Compared with TL071CP, TL071CD offers superior thermal performance in compact layouts due to SO-8's smaller footprint and lower parasitic inductance; versus OPA134UA, it trades 47% lower noise for 64% lower supply current and broader legacy compatibility in ±15 V systems.
Availability
TL071CD is available at Aetrix Electronics and suitable for audio signal chains, industrial sensor interfaces, precision instrumentation, and active filter designs requiring stable component supply across extended production cycles.
Supply support for TL071CD 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 industrial, automotive, and consumer markets.
The TL071 belongs to ST's legacy precision op-amp product line, engineered specifically for high-fidelity analog signal processing in cost-sensitive, high-reliability applications where JFET input performance meets industrial temperature and longevity requirements.
FAQ
What is the maximum supply voltage for TL071CD?
The absolute maximum supply voltage is ±18 V, meaning the total differential supply can reach 36 V. However, recommended operating range is ±3 V to ±18 V. Exceeding ±18 V risks permanent damage to the JFET input stage and internal protection diodes, even momentarily.
Does TL071CD require external compensation capacitors?
No - TL071CD features internal frequency compensation optimized for unity-gain stability. Adding external compensation capacitors is unnecessary and may degrade phase margin or step response. Stability is guaranteed across all gains ≥ 1 with standard 100 pF load capacitance.
Can TL071CD drive a 600 Ω audio load directly?
No - TL071CD is not rated for continuous 600 Ω loads. Its output swing drops to ±4 V into 600 Ω, and sustained current exceeds safe dissipation limits. For 600 Ω interfacing, use a discrete emitter-follower buffer or dedicated line-driver IC to preserve signal integrity and reliability.
How do I configure the offset null pins (1 and 5) correctly?
Connect a 100 kΩ potentiometer between Pins 1 and 5, with its wiper tied to VCC− (Pin 4). Adjust until output voltage equals mid-supply (0 V with symmetric rails). Avoid floating either pin - open connections cause unpredictable offset drift and increased noise susceptibility.
TL071CD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Amplifier Type:
- J-FET
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 16V/µs
- Gain Bandwidth Product:
- 5.25 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:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TL071CD FAQ
1.How can I place an order for TL071CD through Aetrix?
Please submit a Request for Quotation (RFQ) for TL071CD 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 TL071CD reliable?
The price and inventory of TL071CD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL071CD is usually 5 days.
3.What payment methods are accepted for TL071CD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL071CD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL071CD?
TL071CD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL071CD 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 TL071CD?
For technical support, including TL071CD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL071CD requirements.
6.How does Aetrix verify that TL071CD is sourced from the original manufacturer or authorized distributors?
All TL071CD 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 TL071CD meets industry standards.
7.What is the process for return or replacement of TL071CD?
All TL071CD units undergo pre-shipment inspection (PSI). If there is an issue with TL071CD, 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 TL071CD part is unused and in its original packaging.
Return procedure for TL071CD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TL071CD Tags
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LM358DT
STMicroelectronics
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MCP6006T-E/OT
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MCP6006UT-E/OT
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LM2902PWR
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LM2902DR
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LM358P
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