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Texas Instruments TL071BCP
- Part No.:
- TL071BCP
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
TL071BCP.pdf
- Description:
- IC OPAMP JFET 1 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,109
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Product details
Overview
TL071BCP 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, and ±2.25 V to ±20 V dual-supply operation. Its rail-to-rail common-mode input range (including VCC+) supports high-side sensing in industrial sensor interfaces and pro-audio preamplifier stages.
For engineers reviewing the TL071BCP datasheet, TL071BCP pinout, TL071BCP application, or TL071BCP equivalent, this page provides verified specifications, SOIC-8 package details, real-world use cases in audio mixing and motor control feedback loops, and two validated alternative op-amps with documented parameter differences.
Technical Context
The TL071BCP uses a high-impedance JFET differential input stage enabling ultra-low input bias current (≤120 pA typ) and low input capacitance (6 pF common-mode). Its internal compensation ensures stable unity-gain operation with ≥56° phase margin into 20 pF capacitive loads.
It features integrated EMI/RF filters and 2 kV HBM ESD protection. The device operates across 0°C to 70°C (commercial grade), with offset voltage drift of ±2 μV/°C and open-loop gain of 125 dB - enabling DC-coupled precision amplification without significant thermal drift.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Slew Rate | 20 V/μs - enables faithful reproduction of fast transients in audio and pulse-amplification circuits without slew-induced distortion |
| Input Voltage Noise | 37 nV/√Hz at 1 kHz - critical for low-noise microphone preamps and sensor signal chains where signal integrity dominates SNR |
| Input Bias Current | ≤120 pA (typ) - minimizes voltage error in high-impedance source applications like photodiode transimpedance amplifiers |
| Common-Mode Input Range | Includes VCC+ - allows direct interfacing with signals referenced to positive supply, e.g., high-side current sensing |
| Supply Voltage Range | ±2.25 V to ±20 V (4.5 V to 40 V) - supports wide-range industrial power rails and battery-powered instrumentation |
| Offset Voltage Drift | ±2 μV/°C - ensures <±20 μV total drift over 0°C–70°C, reducing calibration burden in precision measurement systems |
| THD+N | 0.003% (typ) at 1 kHz - meets pro-audio line-level signal fidelity requirements without harmonic contamination |
Pinout & Package
TL071BCP is supplied in an 8-pin PDIP (Plastic Dual In-line Package) with 0.3-inch body width and standard through-hole mounting. Pin 1 is marked by a notch or dot; pins are numbered counter-clockwise from top-left when viewed from top.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OFFSET N1 | Input offset null adjustment terminal - used with external potentiometer to trim DC offset to <1 mV in precision DC-coupled stages |
| 2 | IN− | Inverting input - primary feedback node in inverting amplifier configurations and active filter topologies |
| 3 | IN+ | Noninverting input - reference point for voltage followers, noninverting gain stages, and comparator hysteresis networks |
| 4 | VCC− | Negative supply rail - must be decoupled locally with ≥0.1 μF ceramic capacitor to suppress ground bounce and supply noise |
| 5 | OFFSET N2 | Second offset null terminal - completes the nulling network with Pin 1; unused in most applications |
| 6 | OUT | Amplifier output - drives loads ≥2 kΩ directly; requires series resistor for capacitive loads >100 pF to prevent instability |
| 7 | VCC+ | Positive supply rail - accepts up to +20 V; local 0.1 μF ceramic + 10 μF tantalum decoupling recommended |
| 8 | NC | No connect - internally unconnected; must remain floating per TI design guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Low input bias current | Enables high-Z sensor interfacing (e.g., piezoelectric accelerometers) without signal attenuation or time-constant errors |
| Output short-circuit protection | Prevents latch-up or permanent damage during accidental output shorts - critical for field-deployed test equipment |
| Wide supply voltage range | Supports both ±15 V legacy industrial rails and modern ±5 V or ±12 V systems without redesign |
| Integrated EMI/RF filters | Rejects 1 GHz RF interference in noisy factory environments - eliminates need for external ferrite beads in EMC-sensitive designs |
| Low total harmonic distortion | Preserves waveform fidelity in analog summing amplifiers and active crossover networks for studio monitors |
Applications
| Audio Signal Conditioning | Industrial Sensor Interface |
|---|---|
Use Scenario: High-fidelity microphone preamplifier in broadcast mixing consoles requiring low-noise gain before ADC conversion. IC Role / Device Role / Timing Role: Primary low-noise voltage amplifier with fixed 40 dB gain and DC-coupled input stage. Use Value: 37 nV/√Hz noise floor ensures >95 dB SNR at 1 Vpp output, meeting AES17 professional audio standards. | Use Scenario: Amplifying millivolt-level outputs from strain-gauge load cells in packaging machinery. IC Role / Device Role / Timing Role: Instrumentation amplifier front-end with programmable gain and offset trimming via Pins 1/5. Use Value: ±2 μV/°C drift limits thermal error to <140 μV over 0°C–70°C, enabling ±0.1% full-scale accuracy without recalibration. |
| Motor Control Feedback | Battery Test Equipment |
Use Scenario: Isolated current-sense amplifier in servo drive power-stage modules monitoring phase current. IC Role / Device Role / Timing Role: High-side current sense amplifier with VCC+-referenced common-mode input. Use Value: Common-mode input range extending to VCC+ allows direct connection to shunt resistors on high-side switches without level-shifting circuitry. | Use Scenario: Precision voltage monitoring channel in automated Li-ion battery formation testers. IC Role / Device Role / Timing Role: Buffered reference amplifier driving 16-bit SAR ADC inputs with minimal loading error. Use Value: ≤120 pA input bias current prevents >10 μV error across 10 MΩ ADC input impedance, preserving 16-bit resolution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL071CP | Same SOIC-8 footprint but commercial-grade (0°C to 70°C); identical electrical specs except higher max offset voltage (10 mV vs 3 mV) | Acceptable for non-critical audio or general-purpose amplification where ambient temperature stays within 0°C–70°C | Select TL071CP only if cost sensitivity outweighs need for tighter initial offset and wider temp range |
| OPA1611AID | Lower noise (1.1 nV/√Hz), lower distortion (0.000015%), but higher quiescent current (3.6 mA vs 1.4 mA) and narrower supply range (±2.25 V to ±18 V) | Preferred for ultra-high-end audio DAC output stages; unsuitable for battery-powered or thermally constrained designs | Choose OPA1611AID only when noise performance is paramount and power budget permits 2.5× higher IQ |
Compared with TL071BCP, TL071CP trades guaranteed 3-mV max offset and extended temperature tolerance for lower cost, while OPA1611AID delivers order-of-magnitude noise reduction at the expense of power efficiency and thermal robustness - making TL071BCP the optimal balance for industrial audio and sensor signal chains.
Availability
TL071BCP is available at Aetrix Electronics and suitable for pro-audio mixer design, industrial motor drive feedback loops, and battery test equipment requiring stable component supply across long production lifecycles.
Supply support for TL071BCP 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 delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The TL07x family was engineered for cost-sensitive, high-fidelity analog signal paths - emphasizing low noise, JFET input impedance, and robust ESD/EMI immunity in commercial and industrial environments.
FAQ
What is the maximum operating temperature range for TL071BCP?
The TL071BCP is rated for operation from 0°C to +70°C (commercial temperature range). This is confirmed in Section 5.3 of the TI datasheet under Recommended Operating Conditions for TL07xC-grade devices. Exceeding this range may cause parametric shift in offset voltage, slew rate, and CMRR - TL071BCP must not be substituted for TL071H (-40°C to +125°C) or TL071M (-55°C to +125°C) without revalidation.
Does TL071BCP support rail-to-rail output swing?
No, TL071BCP does not provide rail-to-rail output. Per Section 5.7, its typical positive rail headroom is 115–210 mV and negative rail headroom is 105–215 mV at VS = 40 V with 10 kΩ load. Output swing is limited to approximately VCC+ – 0.2 V and VCC− + 0.2 V - requiring careful headroom planning in single-supply designs using TL071BCP.
Can TL071BCP drive capacitive loads directly?
TL071BCP can safely drive ≤100 pF capacitive loads without external compensation. For larger loads (e.g., cables or ADC input capacitance), TI recommends adding a 100 Ω–500 Ω series resistor between TL071BCP output and the load to isolate capacitance and maintain ≥56° phase margin. This is documented in Figure 5-23 and 5-24 of the datasheet's Typical Characteristics section.
How is the offset voltage adjusted on TL071BCP?
TL071BCP provides dedicated offset null terminals (Pins 1 and 5) for manual trimming. A 10 kΩ potentiometer is connected with its wiper to Pin 1 and both ends to Pins 1 and 5, allowing adjustment of input offset voltage to <1 mV. This configuration is explicitly shown in TI's application schematic for TL071x in Section 8.2 and Figure 8-1 of the datasheet.
Is TL071BCP pin-compatible with other TL071 variants like TL071CP or TL071ACN?
Yes, TL071BCP is pin-compatible with all TL071x variants in PDIP-8 (P) and SOIC-8 (D) packages, including TL071CP and TL071ACN. Pin functions - IN− (2), IN+ (3), OUT (6), VCC− (4), VCC+ (7), OFFSET N1 (1), OFFSET N2 (5), NC (8) - are identical across these variants per Table 4-2 and Figure 4-4 of the TI datasheet.
TL071BCP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- 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:
- 2 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:
- Through Hole
- Supplier Device Package:
- 8-PDIP
TL071BCP FAQ
1.How can I place an order for TL071BCP through Aetrix?
Please submit a Request for Quotation (RFQ) for TL071BCP 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 TL071BCP reliable?
The price and inventory of TL071BCP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL071BCP is usually 5 days.
3.What payment methods are accepted for TL071BCP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL071BCP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL071BCP?
TL071BCP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL071BCP 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 TL071BCP?
For technical support, including TL071BCP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL071BCP requirements.
6.How does Aetrix verify that TL071BCP is sourced from the original manufacturer or authorized distributors?
All TL071BCP 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 TL071BCP meets industry standards.
7.What is the process for return or replacement of TL071BCP?
All TL071BCP units undergo pre-shipment inspection (PSI). If there is an issue with TL071BCP, 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 TL071BCP part is unused and in its original packaging.
Return procedure for TL071BCP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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