Best Variable Gain Amplifiers 2026

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Last Updated - 27.03.2026

Best Choice

01

NooElec

VeGA Barebones (VGA) Amplifier Module with Variable Gain for RF & Software Defined Radio (SDR). Very Low Noise, Broadband 30MHz-4000MHz Frequency Capability. Bias Tee & USB Power Options

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9.8

Exceptional

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The attenuation can be controlled either with the integrated potentiometer (analogue control) or the push button array (digital control).
NOTE: Some SDRs require a DC block between LNA and SDR when using the external power supply options. Further information can be found on the product page or in the data sheet: nooelec.com/datasheets/100826
Made in North America. Full 1 year warranty!
Double amplifier design with adjustable gain (20dB-50dB at 100MHz), low noise and low power consumption. Can be powered via bias tee (3.3V-5V), USB or DC
A high-performance broadband all-purpose LNA module (30MHz - 4000MHz) with integrated variable attenuator to maximise usability and portability

64,95 €
Value for Money

02

LAP Lambert Academic Publishing

LTE-A Filter and Variable Gain Amplifier Blocks: System Design; Circuit Design; 4G; Nanometer CMOS technology

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11% Off
9.5

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Plastic Cutlery
Disposable
Cutlery

49,99 € 55,90 €(11% Off off)
03

SEAFRONT

RF Broadband Amplifier LNA Low Noise Amplifier High Gain SMA Socket for Radio 10M-6Ghz

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9.4

Excellent

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WIDER APPLICATION - Allows you to apply to FM broadcasting, remote control receivers, signal amplifiers, RF radio, reception systems, etc.
Ultra-wideband: The broadband amplifier boasts excellent stability and has a wide band from 10 million to 6 GHz that meets your diverse work needs.
HAS GOOD FEATURES The DC 5V low noise broadband amplifier is designed for high gain of 30dB, ensuring high efficiency signal reception.
For Stable Signal: Used to increase the communication accuracy of different RF reception front ends, which also improves signal stability.
EASY INSTALLATION Thanks to its light weight and compact size, the installation of this ultra broadband amplifier is completed in minutes.

22,33 €
04

ZYLARUM

AD8367 Variable Gain Amplifier Module | 500MHz Bandwidth 45dB Gain Range | DC 5V Powered AGC Circuit | Industrial PCB Accessory for RF/Data Processing/Test Equipment

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9.3

Excellent

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Main highlights

Robust Shielding & Protection - Metal shielding shell blocks electromagnetic interference while protection-reverse connection diode prevents damage from incorrect supply, maintaining data integrity in harsh industrial environments and extending module lifespan
Integrated Squaring Detector - Built-in squaring law detector enables automatic gain control mode performance, creating stable negative feedback AGC circuits when paired with logarithmic amplifiers to maintain optimal data levels without manual adjustment
High-Frequency 500MHZ Performance - Variable Gain Amplifier Module delivers stable data amplification from DC to 500MHZ with 50-ohm impedance matching, ensuring accurate industrial-grade performance for RF systems and communication equipment without data degradation
Dual-Mode Gain Control - MODE terminal enables positive gain (high level) or negative gain (low level) performance, providing flexible data conditioning solutions for automatic gain control systems, test instruments, and laboratory measurement setups
Accurate Gain Architecture - 9-stage impedance attenuation network combined with fixed gain amplifier achieves consistent 45dB log-linear gain control, delivering uniform output amplitude up to 27dBm while consuming only 200mA at maximum gain

13,99 €
05

Senzooe

AD8367 module linear variable gain amplifier

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9.2

Excellent

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AD8367 module linear variable gain amplifier

19,00 €
06

Shanrya

Amplifiers Modules 500MHz, Anti Reverse 50 Ohms 45dB PCB Variable Gain Amplifier Module AD8367 for Television for Broadcasting for Automatic Control Device

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9.1

Excellent

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Main highlights

Voltage Range: The analog gain control voltage range is 50mV ~950mV, and the control sensitivity is 20mV/dB
Two Modes: Positive gain mode, MODE terminal connected to high level, and negative gain mode, MODE terminal connected to low level
Squaring Law Detector: Integrated squaring law detector, can also work in automatic gain control mode
Shielding shell: the module has a shielding shell and anti reverse connection protection diode
Gain Control: Consists of a 9 order resistance attenuation networks and a fixed gain amplifier, achieving accurate log linear gain control

11,89 €
07

Hyuduo

Ultra Low Noise RF Amplifier 1-930 MHz, 3 dB Variable AMP-LNA with High Gain, Broadband Amplifier Chip with Heatsink for Long Runtimes RF and Microwave Amplifier

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8.9

Very Good

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SPECIFICATIONS This low noise 1-93MHz RF amplifier requires 12V DC power supply, the input and output impedance is low.
Quality service: If you have any questions about the product, please contact us at any time. We offer you the best solution.
High Gain The gain of this amplifier is 33dBm at 1MHz, a very good gain for SDR VHF UHF and HF.
Heatsink: A heat sink is connected to the LNA. It has good power dissipation for a long service life and reliability.
Good Quality This amplifier is made of high quality PCB board and aluminum alloy and sturdy for long service life.

12,00 €
08

Senzooe

AD8367 voltage gain module variable gain amplifier

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8.7

Very Good

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AD8367 voltage gain module variable gain amplifier

30,00 €
09

Senzooe

AD603 Variable Gain Amplifier Module Voltage Amplifier Voltage Control

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8.6

Very Good

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AD603 Variable Gain Amplifier Module Voltage Amplifier Voltage Control

23,00 €
10

REXVTNS

AD8367 Variable Gain Amplifier Module | 500MHz 45dB AGC Circuit for Industrial Equipment | DC 5V Input with Shielding Shell/Squaring Law Detector | PCB Design
8.5

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

15,09 €