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Texas Instruments TL071CDR
- Part No.:
- TL071CDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TL071CDR.pdf
- Description:
- IC OPAMP JFET 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:8,316
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Product details
Overview
TL071CDR from Texas Instruments is a single-channel, JFET-input operational amplifier optimized for low-noise audio and precision analog signal conditioning. It delivers 20 V/μs slew rate, 37 nV/√Hz input voltage noise at 1 kHz, ±2.25 V to ±20 V dual-supply operation, and 1 mV typical input offset voltage - enabling high-fidelity preamplification in pro-audio mixers and low-drift sensor front-ends.
For engineers reviewing the TL071CDR datasheet, TL071CDR pinout, TL071CDR application, or TL071CDR equivalent, key selection criteria include its FET-input architecture for ultra-low bias current (±1 pA typ), rail-to-rail common-mode input range (including VCC+), output short-circuit protection, and compatibility with ±15 V industrial supply rails.
Technical Context
The TL071CDR uses a high-impedance JFET differential pair input stage followed by a Class-A gain stage and push-pull output stage, supporting stable unity-gain operation with 5.25 MHz gain-bandwidth product and 56° phase margin. Its internal EMI/RF filters and 1.5 kV HBM ESD rating enhance robustness in electrically noisy environments like motor drive feedback loops.
It operates across 0°C to 70°C (commercial grade), supports wide supply ranges (±2.25 V to ±20 V), and features integrated input offset adjustment pins (OFFSET N1/N2) on the SO package - enabling precise DC calibration without external trim pots.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Slew Rate | 20 V/μs - enables accurate reproduction of fast transients in audio and instrumentation signals without slew-induced distortion. |
| Input Voltage Noise | 37 nV/√Hz at 1 kHz - critical for low-level signal amplification in microphone preamps and sensor interfaces. |
| Input Offset Voltage | 1 mV (typ) - ensures minimal DC error in precision DC-coupled circuits such as strain gauge bridges. |
| Supply Voltage Range | ±2.25 V to ±20 V - supports legacy ±15 V systems and modern low-voltage designs without level-shifting. |
| Common-Mode Input Range | Includes VCC+ - allows direct sensing of signals referenced to the positive rail, e.g., high-side current monitoring. |
| Quiescent Current | 1.4 mA per amplifier - balances low power consumption with high-speed performance for battery-aware analog stages. |
| CMRR | 100 dB (min) - rejects interference from shared ground paths in mixed-signal PCB layouts. |
Pinout & Package
TL071CDR is supplied in an 8-pin SOIC (PS) package with exposed pad thermal enhancement. Pin functions are validated per TI SLOS080W Rev. July 2025, Figure 4-4 and Table 4-2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN– | Inverting input | Primary feedback node for inverting configurations; high-impedance JFET input (≤120 pA bias current). |
| IN+ | Noninverting input | Reference input for noninverting gain stages; common-mode range extends to VCC+. |
| OUT | Output | Class AB push-pull stage capable of ±12 V swing into 10 kΩ load with <210 mV headroom to rails. |
| VCC– | Negative supply | Connects to system ground or negative rail; supports split or single-supply operation. |
| VCC+ | Positive supply | Accepts up to +20 V; powers internal bias networks and output stage. |
| OFFSET N1 | Offset null (pin 1) | Connects to potentiometer wiper for manual input offset trimming in precision DC applications. |
| OFFSET N2 | Offset null (pin 5) | Completes offset adjustment network; used with external 10 kΩ pot between pins 1 and 5. |
Key Features
| Feature | Design Value |
|---|---|
| Low input bias current | ±1 pA typical - preserves signal integrity in high-impedance sources like piezoelectric sensors and photodiode transimpedance amps. |
| Output short-circuit protection | ±26 mA continuous short-circuit current limit - prevents latch-up and thermal runaway during fault conditions. |
| EMI/RF rejection | 53 dB EMI rejection ratio at 1 GHz - suppresses cellular and switching regulator noise in industrial control panels. |
| Low THD+N | 0.003% typical at 1 kHz - meets pro-audio line-level signal chain requirements without post-filtering. |
| Wide temperature stability | ±2 µV/°C offset drift - maintains accuracy over 0°C–70°C operating range without recalibration. |
Applications
| Pro Audio Mixer Channel Strip | Battery Test Equipment Front-End |
|---|---|
Use Scenario: Amplifying low-level microphone or line inputs before ADC conversion in digital mixing consoles. IC Role / Device Role / Timing Role: Low-noise preamplifier with adjustable gain and DC offset correction via OFFSET N1/N2 pins. Use Value: 37 nV/√Hz noise floor preserves dynamic range; rail-inclusive common-mode input accommodates DC-coupled mic bias schemes. | Use Scenario: Conditioning voltage/current sense signals during battery charge/discharge cycle validation. IC Role / Device Role / Timing Role: Precision differential amplifier for shunt-based current measurement and cell voltage monitoring. Use Value: 1 mV offset and ±2 µV/°C drift ensure ≤0.5% full-scale error across temperature; ±20 V supply supports 16-cell Li-ion stack monitoring. |
| Solar Inverter String Monitoring | AC Motor Drive Feedback Loop |
Use Scenario: Isolating and scaling DC string voltage and leakage current signals in central inverters. IC Role / Device Role / Timing Role: High-common-mode rejection amplifier interfacing with isolation amplifiers or optocouplers. Use Value: 100 dB CMRR rejects ground-loop noise from PV array grounding; 20 V/μs slew handles transient surges during arc-fault events. | Use Scenario: Closed-loop speed/torque regulation using encoder or resolver feedback in servo drives. IC Role / Device Role / Timing Role: Signal conditioner for analog position feedback prior to interpolation or ADC sampling. Use Value: Output short-circuit protection safeguards against IGBT gate driver faults; 5.25 MHz GBW supports >100 kHz loop bandwidths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL071CP | Dual-inline (PDIP-8) package; identical electrical specs but no OFFSET N1/N2 pins; higher thermal resistance (85°C/W vs 95°C/W). | Lacks offset adjustment capability; unsuitable for precision DC calibration; preferred only for through-hole prototyping. | Select TL071CP only when PDIP footprint is required and offset trimming is handled externally. |
| OPA1611AIDR | Lower noise (1.1 nV/√Hz), lower offset (125 µV max), higher quiescent current (3.6 mA); SOIC-8 pinout differs (no offset pins). | Superior audio performance but incompatible pinout and higher power; requires PCB redesign. | Choose OPA1611AIDR only when noise budget demands sub-5 nV/√Hz and layout revision is acceptable. |
Compared with TL071CP and OPA1611AIDR, TL071CDR uniquely combines SOIC-8 packaging, integrated offset null terminals, and proven 37 nV/√Hz noise at 1.4 mA - making it optimal for cost-sensitive, space-constrained, and calibration-capable analog signal chains.
Availability
TL071CDR is available at Aetrix Electronics and suitable for pro audio mixer design, solar inverter monitoring, and battery test equipment requiring stable component supply and long-term industrial availability.
Supply support for TL071CDR 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 and embedded processing technologies, with decades of heritage in precision op-amps and industrial-grade ICs.
The TL071 family was engineered for high-fidelity analog signal conditioning in cost-sensitive industrial and audio applications, emphasizing low noise, JFET input impedance, and robust supply flexibility.
FAQ
What is the maximum supply voltage for TL071CDR?
The TL071CDR supports a total supply voltage range of ±2.25 V to ±20 V (4.5 V to 40 V), with absolute maximum ratings of –0.3 V to +36 V on VCC+ and VCC– for NS/PS packages. Operation beyond ±20 V risks exceeding recommended conditions and degrading long-term reliability.
Does TL071CDR have built-in offset null capability?
Yes, TL071CDR includes dedicated OFFSET N1 (pin 1) and OFFSET N2 (pin 5) terminals on its SOIC-8 (PS) package, allowing precise input offset voltage adjustment using an external 10 kΩ potentiometer - a feature absent in PDIP and SOIC variants like TL071CP.
Can TL071CDR operate from a single supply?
Yes, TL071CDR supports single-supply operation (e.g., 0 V and +15 V) because its common-mode input voltage range extends to VCC+, and output can swing within ~210 mV of the positive rail. However, input signals must remain within (VCC–)+1.5 V to VCC+ to avoid clipping or phase reversal.
What is the typical input bias current of TL071CDR?
The typical input bias current of TL071CDR is ±1 pA at 25°C, with a maximum of ±120 pA over the full 0°C to 70°C temperature range. This ultra-low value stems from its JFET-input architecture and makes it ideal for high-impedance sensor interfaces where loading error must be minimized.
Is TL071CDR suitable for driving capacitive loads?
TL071CDR is rated for stable operation with up to 300 pF capacitive load, as specified in its datasheet. For larger loads, external compensation (e.g., series resistor at output) is required to maintain phase margin above 56° and prevent oscillation - especially critical in filter or cable-driving applications.
TL071CDR 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:
- 1
- Output Type:
- -
- Slew Rate:
- 13V/µs
- Gain Bandwidth Product:
- 5.25 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 65 pA
- Voltage - Input Offset:
- 3 mV
- Current - Supply:
- 1.4mA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 10 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TL071CDR FAQ
1.How can I place an order for TL071CDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TL071CDR 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 TL071CDR reliable?
The price and inventory of TL071CDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL071CDR is usually 5 days.
3.What payment methods are accepted for TL071CDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL071CDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL071CDR?
TL071CDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL071CDR 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 TL071CDR?
For technical support, including TL071CDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL071CDR requirements.
6.How does Aetrix verify that TL071CDR is sourced from the original manufacturer or authorized distributors?
All TL071CDR 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 TL071CDR meets industry standards.
7.What is the process for return or replacement of TL071CDR?
All TL071CDR units undergo pre-shipment inspection (PSI). If there is an issue with TL071CDR, 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 TL071CDR part is unused and in its original packaging.
Return procedure for TL071CDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TL071CDR Tags
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LM358DT
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