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Home > Products > Integrated Circuits (ICs) > Linear > Instrumentation, Op Amps, Buffer Amps

Texas Instruments TL071ACD

Name: TL071ACD
Brand: Texas Instruments
SKU: TL071ACD
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TL071ACD

Manufacturer:: Texas Instruments

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: 8-SOIC (0.154", 3.90mm Width)

Datasheet:: TL071ACD.pdf

Description:: IC OPAMP JFET 1 CIRCUIT 8SOIC

Quantity:: RFQ Add To RFQ list

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Product details

Overview

TL071ACD from STMicroelectronics is a low-noise JFET-input single operational amplifier optimized for high-fidelity audio, precision instrumentation, and 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 active filters and oscillator circuits requiring low distortion and stable DC performance.

For engineers reviewing the TL071ACD datasheet, TL071ACD pinout, TL071ACD application, or TL071ACD equivalent, key selection criteria include input bias current (≤20 pA typ), offset voltage drift (10 µV/°C), output short-circuit protection, and SO-8 package compatibility with standard PCB layouts for analog signal chains.

Technical Context

The TL071ACD integrates matched high-voltage JFET and bipolar transistors on a monolithic die, enabling high input impedance (>10¹² Ω) and low harmonic distortion (0.01% typ at 1 kHz). Its internal frequency compensation ensures unity-gain stability without external components.

Designed for dual-supply operation (±6 V to ±18 V), it supports rail-to-rail output swing up to ±12 V into 2 kΩ load and maintains CMRR ≥70 dB across temperature. The offset null pins (1 and 5) allow precise DC calibration in precision gain stages.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage	±6 V to ±18 V - supports standard ±15 V analog rails and lower-voltage industrial systems
Slew Rate	16 V/µs (typ) - enables faithful reproduction of fast transients in audio and sensor signal paths
Input Noise	15 nV/√Hz (typ, 1 kHz) - critical for low-level signal amplification without added noise floor
Input Bias Current	20 pA (typ, +25°C) - minimizes error in high-impedance sensor interfaces and integrator circuits
Common-Mode Range	±11 V (with ±15 V supply) - allows direct interfacing with signals near supply rails
THD	0.01% (typ, 1 kHz, 2 Vpp) - meets fidelity requirements in professional audio preamplifiers
Gain Bandwidth	4 MHz (typ) - supports stable closed-loop gain up to ~400 at unity-gain bandwidth limit

Pinout & Package

TL071ACD uses an SO-8 plastic micropackage (3.9 mm × 4.9 mm body, 1.27 mm pitch), RoHS-compliant and ECOPACK® certified.

Pin/Terminal	Circuit Role	Design Meaning
1	Offset Null 1	Connects to potentiometer wiper for trimming input offset voltage in precision DC-coupled stages
2	Inverting Input	Primary feedback node in inverting amplifier configurations; high-impedance JFET gate input
3	Non-inverting Input	Reference input for follower or non-inverting gain stages; matched to Pin 2 for CMRR optimization
4	VCC−	Negative supply rail connection; must be decoupled locally to minimize noise coupling
5	Offset Null 2	Second terminal of offset null potentiometer; completes calibration network with Pin 1
6	Output	Class AB output stage capable of ±10 mA short-circuit current; drives 2 kΩ loads to ±12 V
7	VCC+	Positive supply rail connection; requires local 100 nF ceramic decoupling per supply pin
8	No Connect	Internally unused; must remain unconnected to avoid parasitic coupling or latch-up risk

Key Features

Feature	Design Value
High Input Impedance	10¹² Ω enables direct connection to piezoelectric sensors and photodiode transimpedance nodes without loading
Output Short-Circuit Protection	Continuous safe shorting to either rail or ground prevents damage during prototyping or fault conditions
Latch-Up Free Operation	Guaranteed immunity to destructive latch-up under overvoltage or ESD stress per JEDEC JESD78
Low Offset Drift	10 µV/°C ensures <100 µV total offset shift over full 0°C–70°C operating range in temperature-sensitive measurement
Internal Frequency Compensation	Unity-gain stable without external compensation capacitors-reduces BOM count and layout sensitivity

Applications

Audio Preamp Stage

Active Bandpass Filter

Use Scenario: Low-noise amplification of microphone or phono cartridge signals prior to ADC sampling.

IC Role / Device Role / Timing Role: Single-ended JFET-input op-amp configured as non-inverting gain stage with 20–40 dB fixed gain.

Use Value: 15 nV/√Hz noise floor preserves SNR in 24-bit audio acquisition; 0.01% THD avoids harmonic contamination below –80 dBFS.

Use Scenario: Selective frequency rejection in biomedical instrumentation (e.g., 50/60 Hz mains interference removal).

IC Role / Device Role / Timing Role: Core amplifier in twin-T or state-variable topology notch filter with Q > 20.

Use Value: High CMRR (≥70 dB) rejects common-mode noise; low Iib (20 pA) prevents Q degradation from stray leakage in high-Z RC networks.

DC Precision Integrator

Function Generator Core

Use Scenario: Analog computing element in PID controllers or waveform synthesis where long-term DC accuracy is essential.

IC Role / Device Role / Timing Role: Integrator op-amp with FET-input preserving capacitor charge integrity over minutes/hours.

Use Value: 10 µV/°C offset drift limits integration error to <1 mV/hour drift at 25°C ambient; low Iib prevents capacitor discharge.

Use Scenario: Square-wave oscillator and waveform shaping in test equipment and educational lab modules.

IC Role / Device Role / Timing Role: Schmitt-trigger comparator and buffer in relaxation oscillator (e.g., Figure 21, f_osc = 1/(2·R_F·C)).

Use Value: 16 V/µs slew rate ensures clean 0.5 Hz–10 kHz square edges; output short-circuit tolerance allows direct drive of logic inputs.

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
TL071CD	Same SO-8 package and electrical specs, but wider initial offset voltage (max 13 mV vs. 6 mV for TL071ACD)	Acceptable in AC-coupled audio where DC offset is blocked; less suitable for DC-coupled integrators	Select TL071CD only when cost sensitivity outweighs need for tight Vio spec in precision DC paths
RC4558CD	Bipolar input (not JFET); higher Iib (300 nA), higher noise (35 nV/√Hz), no offset null pins	Functional in general-purpose AC amplification but unsuitable for high-Z sensor interfaces or low-noise audio	Use RC4558CD only in non-critical, cost-driven consumer audio where noise and input impedance are secondary

Compared with TL071CD and RC4558CD, TL071ACD provides superior DC precision (6 mV Vio max), lowest noise (15 nV/√Hz), and offset trimming capability-making it the only choice for DC-stable, low-noise analog signal chains demanding long-term accuracy.

Availability

TL071ACD is available at Aetrix Electronics and suitable for audio preamplification, active filtering, and precision DC signal conditioning requiring stable component supply across industrial and commercial production cycles.

Supply support for TL071ACD 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, power, microcontroller, and sensor solutions for industrial, automotive, and consumer markets.

The TL071 series belongs to ST's legacy precision analog portfolio, engineered specifically for high-fidelity signal processing where JFET input characteristics-low noise, ultra-low bias current, and high impedance-are essential.

FAQ

What is the maximum supply voltage for TL071ACD?

The absolute maximum supply voltage is ±18 V, but recommended operating range is ±6 V to ±18 V. Exceeding ±18 V risks permanent damage. Thermal derating applies above +70°C ambient-consult R_thJA = 125 °C/W (SO-8) to ensure junction temperature stays below 150°C under load.

Does TL071ACD require external compensation?

No-TL071ACD features internal frequency compensation and is unity-gain stable without external capacitors. This eliminates tuning complexity and improves phase margin consistency across production units, unlike decompensated op-amps that mandate external compensation networks.

Can TL071ACD drive capacitive loads directly?

It can drive ≤100 pF capacitive loads stably in unity-gain configuration, as verified in Figure 15. For larger loads (e.g., >200 pF), isolation resistance (≥100 Ω) between output and capacitance is required to prevent peaking or oscillation-per design guidelines in Section 8 of the datasheet.

Is TL071ACD pin-compatible with other TL07x variants?

Yes-TL071ACD shares identical SO-8 pinout and footprint with TL071CD, TL071BCD, and TL071ID. Electrical differences (e.g., Vio, Iib, temp grade) do not affect physical layout, enabling drop-in replacement in existing designs where performance margins allow.

TL071ACD Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: -

Package/Case:: 8-SOIC (0.154", 3.90mm Width)

Packaging:: Bulk

Product Status:: Obsolete

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

TL071ACD FAQ

1.How can I place an order for TL071ACD through Aetrix?

Please submit a Request for Quotation (RFQ) for TL071ACD 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 TL071ACD reliable?

The price and inventory of TL071ACD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL071ACD is usually 5 days.

3.What payment methods are accepted for TL071ACD?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL071ACD transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TL071ACD?

TL071ACD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TL071ACD 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 TL071ACD?

For technical support, including TL071ACD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL071ACD requirements.

6.How does Aetrix verify that TL071ACD is sourced from the original manufacturer or authorized distributors?

All TL071ACD 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 TL071ACD meets industry standards.

7.What is the process for return or replacement of TL071ACD?

All TL071ACD units undergo pre-shipment inspection (PSI). If there is an issue with TL071ACD, 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 TL071ACD part is unused and in its original packaging.

Return procedure for TL071ACD:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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