Best Comparator Amplifiers of 2026

Brian Howie Avatar
Brian Howie
Last Updated: Jan 7, 2026

* We independently evaluate all recommended products and services. If you click on links we provide, we may receive compensation.

Comparator amplifiers are electronic devices that are used to compare two different analog input signals. They are commonly used in electronic circuits to compare voltage levels and trigger certain actions in response to specific input values. These amplifiers have high gain and can amplify small voltage differences between two input signals. They are also equipped with hysteresis, which helps to prevent false triggering and ensure reliable operation. Comparator amplifiers come in a range of different types and configurations, including single-ended, differential, and open-drain configurations, making them suitable for a variety of different applications.

At a Glance: Our Top Picks

TEC TC-616 6-Way Stereo Amplifier Switch Cover #TOP 1
TEC TC-616 6-Way Stereo Amplifier Switch
ftb score rating icon 9.8
Bridgold LM393 Low Power Comparator DIP-8 Cover #TOP 2
Bridgold LM393 Low Power Comparator DIP-8
ftb score rating icon 9.7
VANXY 80Pcs IC Kit LM358P LM393P NE555P LM324N LM339N Cover #TOP 3
VANXY 80Pcs IC Kit LM358P LM393P NE555P LM324N LM339N
ftb score rating icon 9.5

Top 10 Comparator Amplifiers

#TOP 1

TEC TC-616 6-Way Stereo Amplifier Switch

TEC
TC-616
black
TEC TC-616 6-Way Stereo Amplifier Switch Cover
TEC Technolink TC-616 6-Way Stereo Amplifier/Speaker Comparator

The TEC 6-Way Amplifier Switch is a handy device that lets you easily select between up to six different amplifiers or speaker pairs without needing any power. This passive design means you won’t have to worry about plugging it in or managing extra cables. It can handle up to 100 watts per channel, so it’s suitable for most home audio setups. Plus, it comes with a vinyl labeling sheet to help you clearly mark each button, making it simple to identify your connections. The push terminals accept thick speaker wires (up to 14 gauge), giving you flexibility when setting up your system.

What We Like
No power required
Supports six amps or speakers
100 watts per channel
Vinyl label sheet included
Accepts up to 14 gauge wire
#TOP 2

Bridgold LM393 Low Power Comparator DIP-8

bg-315
Bridgold LM393 Low Power Comparator DIP-8 Cover
Bridgold 20pcs LM393N LM393M LM 393 Low Power Dual Voltage Comparator,DIP-8.

The Bridgold LM393 Comparator is designed to use very little power, making it ideal if you want to save energy in your projects. It keeps input currents low, so it won’t interfere much with your circuit’s signals. You’ll also appreciate its compatibility with many logic families like TTL and CMOS, ensuring it works well with different devices. Additionally, it has a low output voltage drop when active, which helps maintain signal strength and efficiency. Overall, the Bridgold LM393 Comparator offers reliable performance with energy-saving benefits that make your electronic designs more efficient.

What We Like
Low input bias current
Minimal power consumption
Wide logic compatibility
Low output saturation voltage
#TOP 3

VANXY 80Pcs IC Kit LM358P LM393P NE555P LM324N LM339N

VANXY
VANXY 80Pcs IC Kit LM358P LM393P NE555P LM324N LM339N Cover
80Pcs ic Kits LM358P LM393P NE555P LM324N LM339N DIP-8 Socket DIP-14 Socket Timer,Operational Amplifier,Low Power Dual Comparator IC

The VANXY IC Kit includes 10 LM358P operational amplifiers, great for amplifying signals in your electronic projects. It also contains 10 LM393P dual comparators, which help you compare voltage levels efficiently. You get 10 NE555 timer ICs, perfect for creating pulse generators and timers in circuits. Additionally, the kit has 5 LM339N low power quad voltage comparators that are useful for detecting voltage changes with low energy use. This kit offers a variety of essential ICs to help you build and improve DIY electronics with ease and flexibility.

What We Like
Variety of essential ICs
Includes operational amplifiers
Dual and quad comparators
Timer ICs for pulse generation
#TOP 4

VIBICCK LM324N Quad Op-Amp 14-Pin IC

VIBICCK
LM324N 35pcs
LM324N
VIBICCK LM324N Quad Op-Amp 14-Pin IC Cover
VIBICCK LM324 LM324N LM324 Quad Om-Amp DIP-14 Quadruple Operational Amplifier 14-Pin IC(Pack of 35pcs)

The VIBICCK LM324N Op-Amp is a versatile 14-pin integrated circuit that contains four independent operational amplifiers. This allows you to work on multiple electronic projects or experiments at once. It operates on a wide voltage range from 3V to 32V, giving you flexibility in power supply options. With a very low current consumption of just 100 nA, it’s efficient and helps save energy in your circuits. Additionally, this chip runs on a single power supply, which simplifies your setup and reduces the need for extra components, making your projects easier to build and manage.

What We Like
Four independent amplifiers
Wide voltage range
Low current consumption
Single power supply operation
#TOP 5

Garosa Millivolt Amplifier Module

Garosa19k5uhyx3g
Garosa Millivolt Amplifier Module Cover
Garosa Millivolt Voltage Amplifier Module - Microvolt Instrumentation Transmitter with Adjustable Zero Point Signal Amplification

The Garosa Voltage Amplifier offers precise control with an adjustable zero point, allowing you to improve measurement accuracy and avoid zero-point drift. You can easily set the amplification level using a single potentiometer, with a magnification of up to 1000 times, making it simple to customize the input signal strength. This module supports a wide input range, amplifying tiny microvolt and millivolt signals accurately thanks to the high-performance AD620 chip, which provides better linearity than common alternatives. Additionally, it includes a 7660A chip to generate a negative voltage output, which can be useful if you need to power other components in your setup.

What We Like
Adjustable zero point
Up to 1000x amplification
Wide input range
High amplification accuracy
Negative voltage output
#TOP 6

ALLECIN LM324N Quad Operational Amplifier IC

LM324N
LM324N
ALLECIN LM324N Quad Operational Amplifier IC Cover
ALLECIN LM324N LM324 Quad Om-Amp DIP-14 Quadruple Operational Amplifier 14-Pin IC(Pack of 30pcs)

The ALLECIN LM324N Op-Amp is a versatile 14-pin integrated circuit that includes four independent operational amplifiers, making it ideal for a wide range of electronics experiments. It operates efficiently with a low current of 100 nA, helping you save power in your projects. The chip supports a voltage range from 3V to 32V, giving you flexibility to use it in various circuits. Plus, it runs on a single power supply, simplifying your setup and reducing the need for extra components. This makes the ALLECIN LM324N Op-Amp a convenient and practical choice for DIY electronics, sensor amplification, and more.

What We Like
Four independent amplifiers
Low current consumption
Wide voltage range
Single power supply operation
#TOP 7

Major Brands LM324N General Purpose Quad OP Amplifier

HATOLY
LM324N
Major Brands LM324N General Purpose Quad OP Amplifier Cover
Major Brands LM324N General Purpose Quad OP Amplifier, +/-16-32 Volt, 14-Pin, Plastic Dip Tube, 4.57 mm H x 6.35 mm W x 19.3 mm L (Pack of 20)

The Major Brands Quad OP Amplifier is a versatile product that can be used in a wide range of applications. It has four internally frequency-compensated channels for unity gain, which means that you can adjust the gain to match your needs. The amplifier has a large DC voltage gain of 100dB and a wide bandwidth of 1MHz, making it ideal for high-frequency applications. In addition, it has a wide power supply range, which means that it can operate on single or dual supplies. The amplifier also has a very low supply current drain of 700uA, which makes it energy-efficient and cost-effective in the long run.

What We Like
Versatile
High gain
Wide bandwidth

Teyleten Robot AD620 Microvolt Voltage Amplifier Module

Teyleten Robot AD620 Microvolt Voltage Amplifier Module Cover
Teyleten Robot Millivolt/Microvolt Voltage Amplifier AD620 Instrumentation Module DC 3-12V High Precision Signal Amplifier (3PCS)

The Teyleten Robot AD620 Amplifier is a high-precision module designed to boost very small voltage signals, ranging from microvolts to millivolts. It offers adjustable amplification between 1.5 and 1000 times, allowing you to tailor the gain to your specific needs. Using the AD620 instrumentation amplifier chip, this module delivers accurate signal output with excellent linearity, outperforming common alternatives like the LM358. Additionally, it features zero-point adjustment and supports negative voltage output, which helps you fine-tune the signal for better accuracy. Noise filtering is also included, ensuring that you get a clean, low-distortion signal, ideal for amplifying tiny electrical signals in your projects.

What We Like
High precision amplification
Adjustable gain range
Accurate and linear output
Zero-point and negative voltage support
Noise filtering capability
#TOP 9

Juried Engineering LM393AP Comparator

Juried Engineering LM393AP Comparator Cover
Juried Engineering LM393AP LM393 Precision Dual Differential Comparator, Industrial Grade IC DIP-8 Breadboard-Friendly (Pack of 5)

The Juried LM393AP Comparator is a versatile component designed for various applications, providing flexibility with single or dual supply options. It supports a wide voltage range from 2V to 36V, making it suitable for different circuits. You'll appreciate its low input bias current, which enhances accuracy in your projects. Additionally, the device operates with minimal current consumption of just 200 µA per comparator, ensuring efficient power usage. Its compatibility with TTL, MOS, and CMOS outputs allows for easy integration into your designs.

What We Like
Wide supply voltage range
Low input bias current
Efficient power consumption
Compatible with various outputs
#TOP 10

Taidacent AD8015 Transimpedance Amplifier Module

AD8015
Taidacent AD8015 Transimpedance Amplifier Module Cover
Taidacent AD8015 Wideband/Differential Output Transimpedance Amplifier Module Single-Ended to Differential 240M Bandwidth 155Mbps Data Rate

The Taidacent AD8015 Amplifier is designed to convert photodiode current into a clear differential voltage output, making it ideal for fiber optic receiver circuits. Its 240 MHz bandwidth supports fast data rates up to 155 Mbps, allowing you to handle high-speed communications with ease. This amplifier can drive signals directly to ECL or to other components like comparators, giving you flexibility in your setup. Plus, it operates on a single 5V power supply, simplifying your system’s power requirements while providing reliable performance for fiber optic and other wide dynamic range applications.

What We Like
Wide 240 MHz bandwidth
Single supply operation (5V)
Differential voltage output
Supports high data rates (155 Mbps+)
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What does a comparator amplifier do?

A comparator amplifier compares two voltages and outputs either a 1 or a 0 to indicate which is larger. It is often used to check whether an input has reached a specific value.

2. What is the difference between a comparator and an amplifier?

Comparators and amplifiers differ in their input voltage levels. While amplifiers operate with input voltages at the same level, comparators typically see large differential voltage swings at their inputs.

3. Why use a comparator instead of an op amp?

Comparators are designed to handle large differential input voltages, while operational amplifiers (op amps) operate with minimized input voltages through negative feedback. When an op amp is overdriven, it may saturate, making a comparator more suitable for certain applications.

4. What are the benefits of a comparator?

Some advantages of mechanical optical comparators include their independence from external power sources and their high magnification capabilities, which ensure accurate measurements.

5. What are the drawbacks of op amp comparators?

Op amps used as comparators have higher power consumption compared to dedicated comparators. Additionally, the allowable differential input voltage may be limited by input clamping diodes in some op amp topologies.

6. What are the disadvantages of using a comparator?

Some disadvantages of using a comparator include its accuracy being affected by variations in AC current, the potential occurrence of zero drift due to heating of coils, higher cost compared to other options, and a reduced range of the comparator due to a fixed scale.

Editor's Notes

During our comparator amplifier research, we found 24 comparator amplifier products and shortlisted 10 quality products. We collected and analyzed 6,294 customer reviews through our big data system to write the comparator amplifiers list. We found that most customers choose comparator amplifiers with an average price of $10.39.

The comparator amplifiers are available for purchase. We have researched hundreds of brands and picked the top brands of comparator amplifiers, including TEC, Bridgold, VANXY, VIBICCK, Garosa. The seller of top 1 product has received honest feedback from 3,824 consumers with an average rating of 4.9.

Written by
Brian Howie Avatar

Brian Howie is a content writer and senior industrial designer. After graduation from Westminster College, he has been engaged in product design and manufacturing for 18 years. Brian Howie has always found great pleasure in designing industrial products and sharing his ideas and experience online.