TL072A JFET Dual Op-Amp
2024-10-08 887

The TL072A is a high-speed JFET input dual operational amplifier admired for its exceptional versatility and performance in diverse applications. With an amalgamation of well-matched high-voltage JFETs and bipolar transistors, this integrated circuit delivers superior electrical characteristics tailored to various demanding tasks. The TL072A operational amplifier stands out as a robust and versatile component, ideally suited for a wide array of high-performance applications due to its remarkable electrical characteristics. With meticulous component selection and thoughtful circuit design, this amplifier can achieve exceptional results in both professional and consumer electronics.

Catalog

TL072A Pinout

The TL072A is a high-performance, low-noise operational amplifier, versatile in various analog electronics applications. Understanding its pinout can greatly impact circuit design and performance optimization. Below is a detailed overview of the pinout and functionality of each pin.

The TL072A features an 8-pin configuration, commonly found in Dual In-Line Package (DIP) cases. Each pin's distinct function contributes to the device's operational capabilities.

Pin 1 - Output 1

Pin 1 acts as the output for the first operational amplifier for delivering the amplified signal from the input stages. It's employed in various analog circuits such as audio amplifiers or sensor interfaces, driving the signals with precision and clarity.

Pin 2 - Inverting Input 1

Pin 2 serves as the inverting input for the first operational amplifier. This pin accepts the input signal, amplifying it such that the output is 180 degrees out of phase with the input. This unique feature is instrumental in creating feedback loops to manage gain and frequency response meticulously.

Pin 3 - Non-Inverting Input 1

Pin 3 functions as the non-inverting input for the first operational amplifier. Signals processed here retain their phase, required in phase-sensitive operations such as signal summing or differential amplification, ensuring high-fidelity and precise signal manipulation.

Pin 4 - Vcc (Positive Power Supply)

Pin 4 is the positive power supply for the operational amplifiers. A stable and clean power source for this pin profoundly impacts the overall performance of the TL072A. You often implement decoupling capacitors near this pin to reduce noise and stabilize the voltage.

Pin 5 - Non-Inverting Input 2

Pin 5 serves as the non-inverting input for the second operational amplifier, mirroring the function of Pin 3 but catering to the second channel. This allows for simultaneous operations on different signals in dual-channel processing designs.

Pin 6 - Inverting Input 2

Pin 6 is the inverting input for the second operational amplifier, signal processing tasks like active filtering or signal inversion. The adaptability of this pin enhances its value in sophisticated analog circuits, enabling complex functions with finesse.

Pin 7 - Output 2

Pin 7 provides the output for the second operational amplifier. Its performance is in applications like instrumentation amplifiers or multi-channel audio systems. Proper impedance matching at this pin ensures maximum signal integrity, enhancing overall system quality.

Pin 8 - Vee (Negative Power Supply)

Pin 8 functions as the negative power supply for the operational amplifiers. Frequently, capacitors are used to filter high-frequency noise, maintaining a clean negative supply and ensuring optimal operational stability.

TL072A CAD Model

CAD models serve as tools in modern electronic design automation, offering a visual framework to develop and evaluate electronic components with greater nuance. The TL072A is an operational amplifier, frequently employed in various analog signal processing applications. The introduction of CAD (Computer-Aided Design) models has transformed the circuit design process, making it not only more efficient but also highly accurate. For the TL072A operational amplifier, a precise CAD model is for simulating performance under various circumstances, thus reducing errors in the final product. You can identify potential issues early in the design phase, leading to time and cost savings.

Comprehensive Review of TL072A

The TL072A is a dual high-speed JFET input operational amplifier integrating high-voltage JFET and bipolar transistors. It offers high slew rates, minimal input bias and offset currents, and low offset voltage temperature coefficients. Available in various low noise and low harmonic distortion versions, this dual op-amp IC is ideal for applications demanding high accuracy, such as audio pre-amplification. This comprehensive review provides an in-depth look at the TL072A JFET Dual Operational Amplifier, including pin descriptions and features, helping you fully appreciate its capabilities and potential applications.

The TL072A JFET Dual Operational Amplifier, with its blend of high-speed performance and low-noise operation, is a component in high-accuracy applications. This review highlights the importance of understanding its features and implementing best practices to fully leverage its potential.

TL072A’s Comprehensive Characteristics

Extensive Common-Mode and Differential Voltage Range

The TL072A operational amplifier is designed with an extensive common-mode and differential voltage range, allowing for a broad spectrum of design applications. This versatility permits the amplifier to function seamlessly across a variety of voltage levels, making it adaptable to both single-supply and dual-supply systems. In these scenarios, such as audio signal processing, the amplifier's ability to handle diverse input signals without distortion or signal loss stands out.

Minimal Input Bias and Offset Current

One standout trait of the TL072A is its minimal input bias and offset current. These characteristics are in precision application contexts like sensor interfacing and instrumentation, where even minuscule deviations can cause substantial errors. For instance, in medical instrumentation, maintaining low input bias and offset currents ensures accurate and stable readings over prolonged durations.

Superior Low Noise Performance

The TL072A is distinguished by its low noise performance, typically at 15 nV/√Hz. This feature is highly valued in high-fidelity audio applications and sensitive measurement systems, where noise can markedly degrade performance. In studio recording equipment, minimizing noise to preserve the authenticity of the audio signal.

Elevated Input Impedance

The high input impedance of the TL072A, attributed to its JFET input stage, minimizes loading on the preceding stages of the circuit. Such a characteristic is beneficial for high-impedance source applications, including guitar amplifiers or sensor circuits, where it is to avoid signal attenuation and maintain signal purity.

Subdued Harmonic Distortion

The TL072A’s subdued harmonic distortion, typically at 0.01%, ensures that the output signal remains a faithful representation of the input, devoid of unwanted harmonic artifacts. In audio amplification, low harmonic distortion translates into more precise sound reproduction, enriching the overall listening experience.

Built-In Frequency Compensation

The internal frequency compensation of the TL072A simplifies both the design process and the stability of varied configurations. This feature reduces design complexity and potential points of failure in complex circuits where external compensation components might otherwise be required. In applications such as active filters, built-in frequency compensation ensures consistent and reliable performance.

TL072A Technical Specifications

The TL072A stands out due to its remarkably low harmonic distortion, typically measured at 0.003%. This low distortion level ensures that the output signal is as faithful to the input signal as possible. For audiophiles and sounds preserving the purity of sound is often a labor of love, and the TL072A delivers on this promise, ensuring that the subtleties of performance are reproduced with breathtaking accuracy.

Adding to its impressive specifications, the TL072A exhibits low operational noise, characterized by a noise density of 18 nV/√Hz at 1 kHz. This minimal noise level is especially beneficial in sensitive analog signal processing applications. In medical instrumentation, where every heartbeat or neural pulse carries immense significance, or in scientific measurement devices that capture fleeting phenomena, this feature ensures data precision and clarity.

The TL072A is a versatile and robust operational amplifier that combines low noise, low harmonic distortion, a high slew rate, and broad temperature tolerance. Its ability to operate reliably across various conditions and applications underscores its value both in consumer electronics and specialized industrial environments.

Specifications

Type	Parameter
Lifecycle Status	ACTIVE (Last Updated: 6 months ago)
Mount	Surface Mount
Package / Case	8-SOIC (0.154, 3.90mm Width)
Number of Elements	2
Packaging	Tape & Reel (TR)
Part Status	Active
Number of Terminations	8
Terminal Finish	Matte Tin (Sn) - annealed
Terminal Position	DUAL
Peak Reflow Temperature (Cel)	260
Supply Voltage	15V
Base Part Number	TL072
Power Supplies	±15V
Nominal Supply Current	2.5mA
Slew Rate	16V/μs
Amplifier Type	J-FET
Current - Input Bias	20pA
Output Current per Channel	40mA
Voltage Gain	106.02dB
Frequency Compensation	YES
Low-Bias	YES
Length	4.9mm
Radiation Hardening	No
Lead Free	Lead Free
Factory Lead Time	10 Weeks
Mounting Type	Surface Mount
Number of Pins	8
Operating Temperature	0°C to 70°C
JESD-609 Code	e3
Moisture Sensitivity Level (MSL)	1 (Unlimited)
ECCN Code	EAR99
Packing Method	TAPE AND REEL
Terminal Form	GULL WING
Number of Functions	2
Time@Peak Reflow Temp-Max (s)	30
Pin Count	8
Operating Supply Current	1.4mA
Output Current	40mA
Architecture	VOLTAGE-FEEDBACK
Common Mode Rejection Ratio	80 dB
Voltage - Supply, Single/Dual (±)	8V~36V, ±3V~18V
Input Offset Voltage (Vos)	6mV
Unity Gain BW-Nom	4000 kHz
Low-Offset	NO
Voltage - Input Offset	3mV
Input Offset Current-Max (IIO)	0.004μA
Height Seated (Max)	1.75mm
RoHS Status	RoHS3 Compliant

The STMicroelectronics TL072ACDT is celebrated for its high-speed JFET input operational amplifiers. These amplifiers excel in noise levels, bandwidth, and input impedance. Such features make the TL072ACDT ideal for applications that demand low noise and high input impedance, like audio and data acquisition systems. Additionally, the amplifiers exhibit low harmonic distortion, enhancing their fidelity in signal amplification tasks.

By synthesizing the core characteristics of the STMicroelectronics TL072ACDT and its comparable counterparts, it is clear that each amplifier offers unique strengths suited to different technical needs. Whether the priority is noise levels, input impedance, or bandwidth, the choice should align with specific use-case requirements. Expert opinions consistently emphasize the value of contextual application suitability, underscoring that the versatility of the TL072ACDT makes it a dependable option in numerous high-precision environments.

TL072A Functional Block Diagram

The TL072A operational amplifier finds its place at the heart of numerous electronic systems. Designed for scenarios requiring low noise and high speed, this document delves into the functional block diagram of the TL072A, offering an in-depth exploration of its various sections and their synergistic interactions. The input stage features a JFET differential pair. JFETs (Junction Field-Effect Transistors) are chosen for their high input impedance and low noise performance. This stage converts the differential input voltage to a single-ended signal, thus enhancing the overall efficiency and reliability of the amplifier. The bias network generates constant current sources, ensuring the JFETs function within their optimal parameters. Understanding biasing mechanisms helps address the rigorous performance demands of these applications and aids in effective circuit design and troubleshooting.

After passing through the input stage, the signal reaches the intermediate stage, which involves additional amplification and buffering. This stage, often employing bipolar transistors, boosts the signal while maintaining stability and bandwidth. In this stage, techniques such as load resistors and current mirrors are used to enhance signal strength. These techniques ensure weak input signals are amplified effectively, retaining their integrity.

The TL072A functional block diagram represents a well-engineered design aimed at high-performance applications. Thorough understanding and analysis of each stage, from input to power supply, facilitate the optimization of operational amplifier circuits across various applications. Such knowledge can drive advancements in electronic design and troubleshooting.

TL072A Equivalent

Exploring the operational amplifiers (op-amps) similar to the TL072A reveals differences in performance metrics tailored to specific applications. The TL072A, lauded for its low noise, high input impedance, and expansive bandwidth, finds itself at the heart of various audio and instrumentation circuits. Delving into substitutes and their subtle properties enables to craft solutions that align with unique system needs.

Model number	Manufacturer	Description
TL072AMN	STMicroelectronics	DUAL OP-AMP, 7000uV OFFSET-MAX, 4MHz BAND WIDTH, PDIP8, ROHS COMPLIANT, PLASTIC, DIP-8
TL082ACP	Freescale Semiconductor	IC,OP-AMP,DUAL,BIPOLAR/JFET,DIP,8PIN,PLASTIC
NTE947D	NTE Electronics Inc	Operational Amplifier, 2 Func, 7500uV Offset-Max, PDIP14, DIP-14
TL072AMD	STMicroelectronics	DUAL OP-AMP, 7000uV OFFSET-MAX, 4MHz BAND WIDTH, PDSO8, ROHS COMPLIANT, MICRO, PLASTIC, SOP-8
MCT1458P1G	On Semiconductor	DUAL OP-AMP, 7500uV OFFSET-MAX, PDIP8, GREEN, PLASTIC, DIP-8
KA1458AD	Samsung Semiconductor	Operational Amplifier, 2 Func, 7500uV Offset-Max, BIPolar, PDSO8, 0.225 INCH, SOP-8
TL072AIN	STMicroelectronics	DUAL OP-AMP, 7000uV OFFSET-MAX, 4MHz BAND WIDTH, PDIP8, ROHS COMPLIANT, PLASTIC, DIP-8
RC4558-W	Texas Instruments	Dual General-Purpose Operational Amplifier 0-WAFERSALE
TL082IH	STMicroelectronics	DUAL OP-AMP, 7000uV OFFSET-MAX, 4MHz BAND WIDTH, MBCY8, TO-99, 8 PIN
TL072ACD	Rochester Electronics LLC	DUAL OP-AMP, 7500uV OFFSET-MAX, 4MHz BAND WIDTH, PDSO8, PLASTIC, SO-8

 

Selecting a suitable equivalent often involves delicate balancing, weighing performance enhancements against considerations like cost and availability. These scenarios often necessitate retrofit solutions, where a deep understanding of op-amp behaviors—such as thermal drift and input offset voltage—is required for ensuring long-term reliability and performance stability. For those venturing further, factors such as the power supply rejection ratio (PSRR) and common-mode rejection ratio (CMRR) come into play. Advanced designs demand a comprehensive approach, integrating thermal management and electromagnetic interference (EMI) mitigation to fully exploit the specialized op-amp advantages.

Alternatives:

• TL072AMN

• TL082ACP

• NTE947D

• TL072AMDT

• MCT1458P1G

• KA1458AD

• TL072AIN

• RC4558-W

• TL082IH

• TL072ACD

Applications of IC TL072

Audio Pre-Amplification

The TL072 stands out for applications demanding high precision with minimal harmonic distortion and noise. In audio pre-amplification circuits, its exceptional performance ensures the audio output remains devoid of unwanted noise, interference, and distortion. The TL072 is ideally suited for circuits involving volume, bass, and treble control. By integrating the TL072 in these scenarios, one can enjoy enhanced sound clarity, maintaining the purity and richness of the audio. The result is a more immersive and natural listening experience.

Voltage Comparator

Apart from its audio prowess, the TL072 excels as a voltage comparator IC, making it a versatile component in signal processing tasks. Precision and reliability are catered to, thanks to its high input impedance and low offset voltage characteristics. This characteristic ensures that accurate and consistent voltage comparisons are possible.

Signal Amplification

The TL072's effectiveness extends to various signal amplification roles. Its low noise characteristic and high slew rate make it perfect for amplifying low-level signals while preventing undesirable interference. In scientific measurements and instrumentation, for example, the TL072 maintains signal integrity, ensuring the accuracy and reliability of data. In applications where even minor signal deviations could lead to substantial inaccuracies.

Implementing TL072 in Audio Pre-Amplification

The TL072 operational amplifier thrives in audio pre-amplification applications, renowned for its low noise and minimal distortion. Designed to refine audio signals, it's an ideal choice for high-fidelity audio endeavors. The TL072's high input impedance facilitates precise signal management and alleviates the burden on the audio source. Ensuring a proper connection preserves the integrity of the original audio signal, yielding output with minimal noise and distortion.

The TL072 operational amplifier benefits audio pre-amplification, especially in yielding low noise and distortion output. Through careful resistor value adjustments and implementing noise reduction strategies, high-quality audio performance is attainable.

TL072A Typical Application

Amplifier Circuits

The TL072A operational amplifier is a staple in amplifier circuits, cherished for its low noise and high input impedance properties. Its role in audio amplification systems undeniably shines. These often turn to the TL072A in preamplifier stages to enhance low-level signals before further amplification. This meticulous step helps maintain superior sound quality while keeping distortion at bay.

A notable application of the TL072A is found in instrumentation amplifiers. These amplifiers are in settings that demand precise signal amplification, such as medical devices like ECG machines and laboratory instruments. The TL072A excels by providing excellent common-mode rejection and stable performance under varying environmental conditions. These traits ensure accurate readings, making it a trusted component in sensitive equipment.

The TL072A also are in filter circuits for separating or conditioning signals in a multitude of electronic applications.

• Low-pass filters

• High-pass filters

• Band-pass filters

To combat noise, shielded cables, and proper grounding techniques are often implemented. Employing decoupling capacitors can further reduce power supply noise, thereby preserving signal clarity. Fine-tuning parameters such as gain and frequency response can boost the performance of TL072A-based circuits.

Slight adjustments in resistor and capacitor values can lead to notable improvements in both performance and efficiency. The TL072A operational amplifier's versatility ensures its role in various electronic applications, from amplifier and filter circuits to oscillator designs. Its dependable performance and adaptability make it a component of current and future technological advancements.

TL072A Parameter Measurement Information

Assessing the Common-Mode Rejection Ratio (CMRR) and Power Supply Rejection Ratio (PSRR) of the TL072A operational amplifier involves utilizing a meticulously designed test circuit that ensures accurate and repeatable measurements. Balancing the input signal is achieving precise CMRR results. Employing precision resistors and a well-regulated power supply are steps to maintain signal integrity. External noise should be mitigated to avoid affecting the readings. For PSRR measurements, fluctuations in power supply voltages are introduced, and the resulting output voltage changes are analyzed to understand the op-amp’s rejection capabilities. Reliable PSRR data relies heavily on the stability of the test equipment, including the power supply and measuring instruments.

Large-signal voltage gain and slew rate hold significance in high-speed and high-frequency applications, necessitating test circuits that can handle dynamic ranges and rapid signal transitions. By applying an input signal amplitude and measuring the consequent output voltage, the large-signal voltage gain is determined. The design must prevent the op-amp from entering saturation or cutoff to avoid distorted results. To measure the slew rate, a step input signal is applied, and the rate of change of the output voltage, typically in volts per microsecond, is captured by analyzing the rising or falling edge. Ensuring minimal inductive and capacitive effects in the test circuit aids in maintaining accuracy.

For accurate measurement of TL072A parameters such as CMRR, PSRR, large-signal voltage gain, slew rate, and THD+N, carefully designed test circuits and attention to detail. Understanding the intricacies of the test environment and applying sound engineering practices ensures reliable and meaningful data, guiding optimal use of the op-amp in diverse applications.

TL072A Package

The TL072A is a dual-operational amplifier integrated circuit known for its low noise and low harmonic distortion. It’s housed in standardized packages, which makes it versatile for a range of electronic applications including audio processing and signal manipulation. TL072A packages come in varied forms, each offering distinct physical and electrical characteristics to suit different needs. DIP packages simplify prototyping and breadboarding due to their through-hole mounting feature but may not be ideal for designs with strict space constraints.

SOIC packages cater to space-saving demands and are suitable for automated manufacturing processes, supporting surface-mount technology (SMT) that enhances thermal efficiency and reliability. TSSOP designs focus on highly compact applications, reducing size and weight while maintaining electrical performance. This compact nature is prized for high-density circuit designs. In audio processing, the TL072A’s low harmonic distortion contributes to clearer, more accurate sound reproduction.

For signal manipulation, the TL072A excels in maintaining signal integrity across various operational conditions. Selecting the appropriate TL072A package involves balancing physical space constraints, thermal management, and mounting methodology. The TL072A package types—DIP, SOIC, or TSSOP—offer flexibility for various design requirements. Understanding the benefits and limitations of each type enables to make more informed decisions that align with their project goals. The right package can directly impact the performance, reliability, and manufacturability of the end product.

TL072A Manufacturer

STMicroelectronics, a prominent figure in semiconductor solutions, persistently breaks new ground in microelectronics. With a strong focus on silicon and systems design, manufacturing, intellectual property, and strategic collaborations, the company excels at delivering cutting-edge System-on-Chip (SoC) technology. Their efforts address current technological convergence trends, influencing various sectors. STMicroelectronics’ profound expertise in silicon design and systems engineering enables them to craft highly integrated and efficient semiconductor solutions.This expertise spans numerous applications, from automotive to consumer electronics, evidencing the tangible advantages of advanced semiconductor design in daily technologies.

STMicroelectronics' holistic approach, leveraging expertise in silicon and systems, manufacturing prowess, strategic partnerships, and intellectual property, position them as leaders in System-on-Chip technology. These facilitates the seamless integration of advanced semiconductor solutions into modern applications, driving progress across multiple industries and reflecting a profound understanding of contemporary technological needs.

Datasheet PDF

TL072A Datasheets:

TL072A.pdf