TL074 Operational Amplifier Pinout, Datasheet, Alternative

The TL074 is a popular quad operational amplifier (Op-Amp) IC widely used in audio circuits, signal conditioning, active filters, instrumentation, and industrial control systems. It belongs to the TL07x family of low-noise JFET-input operational amplifiers and contains four independent high-speed Op-Amps inside a single package.

Designed for low distortion and fast response, the component provides excellent performance in both analog and mixed-signal applications. Commonly used in professional audio mixers, sensor amplifiers, UPS systems, and motor control circuits because of its low input bias current and high slew rate.

The device delivers outstanding value for cost-sensitive applications, with features including low offset voltage (1mV typical), high slew rate (20V/μs), and common-mode input capability extending to the positive supply rail. High ESD protection (1.5kV HBM), integrated EMI/RF filtering, and operation across a wide temperature range of –40°C to +125°C make the TL07xH family suitable for rugged industrial and automotive environments.

1. What is TL074?

2. TL074 Pinout

3. IC TL074 Feature

4. TL074 Specifications

5. TL074 Equivalent and Alternative

6. Where and How to Use TL074

7. TL074 Application

8. LM324 vs TL074

9. Frequently Asked Questions

What is TL074?

A quad JFET-input operational amplifier widely used in audio processing, signal conditioning, active filters, and industrial control systems. It integrates four independent high-speed operational amplifiers in a single package, helping reduce PCB space and overall system cost. The device provides excellent value for cost-sensitive applications with features such as low offset voltage (1mV typical), high slew rate (20V/μs), and common-mode input capability extending to the positive supply rail. High ESD protection (1.5kV HBM), integrated EMI/RF filters, and an operating temperature range of –40°C to +125°C make the TL07xH family suitable for rugged environments.

TL074 Pinout

The TL074 uses a 14-pin package and integrates four independent operational amplifiers.

TL074 Pin Configuration Description

Output Pins

Pins 1, 7, 8, and 14 are the output terminals of the four internal operational amplifiers. These pins deliver the amplified analog signal to the external circuit.

Inverting Input Pins

Pins 2, 6, 9, and 13 are the inverting inputs. When apply a signal to these terminals, the output waveform becomes inverted relative to the input.

Non-Inverting Input Pins

Pins 3, 5, 10, and 12 are the non-inverting inputs. Signals applied here appear at the output without phase inversion.

Positive Supply Pin

Pin 4 connects to the positive power supply rail and powers the internal circuitry of the IC.

Negative Supply Pin

Pin 11 connects to the negative supply rail or ground in single-supply applications.

TL074 CAD Model

Symbol

Footprint

3D Model

These CAD models help engineers quickly integrate the circuit into schematic diagrams and PCB layouts.

TL074 Functional Block Diagram

The functional block diagram of the TL 074 shows four independent JFET-input operational amplifiers integrated into a single IC package. Each amplifier includes:

· Differential input stage

· Gain stage

· Frequency compensation

· Output driver stage

· Short-circuit protection circuitry

This architecture allows the IC to provide high gain, low distortion, and stable operation over a wide frequency range.

IC TL074 Feature

Low Offset Voltage Drift

The chip offers a low offset voltage drift of approximately 2μV/°C, helping improve accuracy and long-term stability in precision analog circuits.

Low Power Consumption

The device consumes only about 940μA per channel (typical for TL07xH devices), making it suitable for low-power and energy-efficient electronic designs.

Wide Common-Mode Voltage Range

The TL 074 supports a wide common-mode and differential input voltage range. Its common-mode input range can extend up to the positive supply rail (VCC+), providing greater design flexibility.

Low Input Bias and Offset Currents

Thanks to its JFET input structure, the IC provides extremely low input bias and offset currents, reducing signal errors in high-impedance applications.

Low Noise Performance

The TL074 delivers low noise characteristics with a typical noise voltage of 37nV/√Hz at 1kHz, making it ideal for audio amplifiers and sensitive signal processing circuits.

Output Short-Circuit Protection

Integrated short-circuit protection circuitry helps protect the output stage from accidental overload or wiring faults.

Low Total Harmonic Distortion

The device provides low total harmonic distortion of approximately 0.003% typical, ensuring clean and accurate signal amplification in audio applications.

Wide Supply Voltage Range

The chip supports a broad operating voltage range from ±2.25V to ±20V in dual-supply mode, or 4.5V to 40V in single-supply configurations.

TL074 Specifications

Table

TL074 Manufacturer Information

The Texas Instruments and STMicroelectronics are among the major manufacturers producing the TL074 operational amplifier IC. These companies provide the device in multiple package options suitable for industrial, audio, instrumentation, and consumer electronics applications.

TL074 Package Information

The TL 074 is available in several package types:

TL074 Equivalent and Alternative

Can use several operational amplifiers as alternatives to the TL 074 depending on circuit requirements.

LM324

The LM324 is a popular quad operational amplifier designed for low-power and single-supply applications. Compared with the TL 074, the LM324 operates at lower supply voltages and commonly use in battery-powered circuits, sensor interfaces, and control systems. However, it offers lower slew rate and bandwidth performance.

TL071

The TL071 is the single-channel version of the TL 074. It features low noise, high input impedance, and fast slew rate, making it suitable for audio amplifiers, active filters, and precision analog circuits where require only one Op-Amp channel.

TL072

The TL072 is a dual-channel JFET-input operational amplifier with characteristics similar to the TL 074. Widely use in professional audio equipment, preamplifiers, tone-control circuits, and signal conditioning applications.

LF351

The LF351 is a high-performance single operational amplifier that provides low input bias current and high slew rate. Commonly use in instrumentation systems, waveform generators, and low-noise analog signal processing designs.

LM741

The LM741 is a classic single operational amplifier frequently used in educational projects and general analog electronics. Although older than the TL 074, it remains popular for simple amplifier and comparator circuits.

LM709

The LM709 is a traditional general-purpose operational amplifier designed for linear amplification and analog computation circuits. Can use as a replacement in some standard analog applications.

LM201

The LM201 is a precision operational amplifier offering high DC gain and stable performance. It is suitable for measurement systems, instrumentation amplifiers, and precision analog processing applications.

LM748

The LM748 is a dual-channel operational amplifier designed for general-purpose analog amplification. Commonly use in signal conditioning, industrial electronics, and analog control systems.

Where and How to Use TL074

The TL074 widely use in applications requiring high input impedance and low distortion. It performs especially well in analog signal processing circuits.

Audio Systems

Used in preamplifiers, equalizers, tone-control circuits, and professional audio mixers because of its low noise and high slew rate.

Active Filters

The component is ideal for low-pass, high-pass, and band-pass active filter circuits.

Sensor Signal Conditioning

Its low input bias current makes it suitable for amplifying weak sensor signals from piezoelectric sensors and photodiodes.

Instrumentation Circuits

Used in analog instrumentation and data acquisition systems.

Comparator and Oscillator Circuits

It can also operate in waveform generation and comparator applications.

TL074 Application

The TL 074 is used across a wide range of industrial and consumer electronic systems.

Solar Energy Systems

In solar energy systems, especially in string inverters and central inverter circuits. It helps in signal conditioning, voltage monitoring, and feedback control for efficient power conversion.

Motor Drive Systems

In motor control applications, use in AC motor drives, servo control systems, and power-stage modules. Its high slew rate and low noise performance ensure accurate analog signal processing for speed and torque control.

UPS Systems

In single-phase online UPS and three-phase UPS systems. Used for voltage regulation, sensing, and control loop feedback to maintain stable and reliable power output.

Professional Audio Equipment

In professional audio mixers and sound processing equipment. Its low distortion and low noise characteristics make it suitable for preamplifiers, equalizers, and audio signal routing circuits.

Battery Test Equipment

In battery testing systems, used for accurate voltage measurement, current sensing, and analog signal conditioning. It ensures stable performance in precision testing and monitoring applications.

TL074 Datasheet PDF

The data sheet provides detailed information including:

· Electrical characteristics

· Absolute maximum ratings

· Pin configuration

· Typical application circuits

· Thermal specifications

· PCB layout recommendations

LM324 vs TL074

Table

Key Differences

Speed

The TL 074 has a much higher slew rate and bandwidth than the LM324, making it better for high-frequency and audio applications.

Input Stage

The TL 074 uses JFET inputs with extremely low bias current, while the LM324 uses bipolar transistor inputs.

Power Supply

The LM324 supports lower single-supply voltages, making it more suitable for battery-powered circuits.

Audio Performance

The TL 074 offers lower distortion and lower noise, making it the preferred choice for audio systems.

Frequently Asked Questions

Is TL074 rail to rail?

No. The TL 074 is not a rail-to-rail operational amplifier. Its output voltage cannot swing fully to the supply rails.

How much voltage to turn on TL074 op-amp?

The TL 074 typically operates from ±5V dual supply or a single 10V supply, although the full range extends up to ±20V.

What is the function of TL074?

The TL 074 amplifies analog voltage signals and commonly use in filtering, signal conditioning, audio processing, and instrumentation circuits.

What is the IC equivalent of TL074?

Equivalent or similar ICs include TL084, TL072, LF351, LM324, and LM748 depending on circuit requirements.

What is the TL074 supply voltage range?

The component supports supply voltages from ±2.25V to ±20V or 4.5V to 40V single supply.

Can I replace LM324 with TL074?

In some circuits yes, but not always. The TL074 requires higher supply voltage and behaves differently because it uses JFET inputs instead of bipolar inputs.

What is TL074 price?

The TL 074 is a low-cost operational amplifier IC. Pricing varies depending on package type, manufacturer, and purchase quantity.

What is the difference between TL074 and TL084?

The TL084 is an improved version with slightly better noise and offset specifications, but both devices are pin-compatible quad JFET Op-Amps.

What is the slew rate of TL074?

The typical slew rate of the TL 074 is approximately 13V/μs, enabling fast signal response and good high-frequency performance.

Conclusion

The TL074 remains one of the most widely used quad operational amplifiers for audio, industrial, instrumentation, and analog signal processing applications. Its combination of low noise, high slew rate, low distortion, and wide supply voltage capability makes it suitable for both professional and general-purpose electronic designs.

With four independent JFET-input Op-Amps integrated into a single package, the TL074 helps engineers reduce circuit complexity while maintaining excellent analog performance.

Read More:

1. TL072 Operational Amplifier: Pinout and Specifications

2. JRC4558 Operational Amplifier (Op-Amp) Guide

3. LM324N Operational Amplifiers - Guide Pinout and Datasheet