• This product is an amplifier module that utilizes the LM358 operational amplifier to amplify weak DC signals up to 1000 times their original strength.
• It is suitable for amplifying signals with millivolts or weaker levels.
• The module includes two potentiometers for adjusting the gain of the first and second stages of amplification, allowing for fine-tuned adjustments to the overall gain.
• The module is easy to use and can be integrated into a variety of electronic circuits to improve the sensitivity of signal detection or improve the output strength of DC signals.

Features:

• High gain: The module can amplify weak DC signals up to 1000 times their original strength, making it suitable for amplifying signals with millivolts or weaker levels.
• Dual-stage amplification: The module includes two potentiometers for adjusting the gain of the first and second stages of amplification, allowing for fine-tuned adjustments to the overall gain.
• Easy to use: The module is easy to use and can be integrated into a variety of electronic circuits to improve the sensitivity of signal detection or improve the output strength of DC signals.
• Low noise: The module has a low noise profile, making it suitable for amplifying weak signals without adding additional noise or distortion.
• Versatile: The module can be used in a variety of applications, including medical equipment, sensing and detection, audio equipment, industrial automation, and research and development.
• Compact design: The module has a compact design that makes it easy to integrate into electronic circuits without taking up too much space.
• Low power consumption: The module has a low power consumption, making it suitable for battery-powered applications or other low-power systems.
• Voltage output: output = input voltage signal * magnification
• Magnification: Total multiple = first multiple * second multiple

Specification:

• Power supply: 3.5 - 24 VDC
• Current output: maximum 15 - 20 MA (non-linear)
• Dimensions: 45.3 x 16.2 mm

Applications:

• Medical equipment: It can be used in medical equipment such as ECG machines, EEG machines, or blood pressure monitors to amplify weak signals from the body and enhance their accuracy and reliability.
• Sensing and detection: The amplifier module can be used in sensors or detectors that rely on weak electrical signals such as temperature sensors, light sensors, or motion detectors. By amplifying these signals, the sensors can provide more accurate and reliable data.
• Audio equipment: The module can be used in audio equipment such as microphones, preamps, or guitar amplifiers to boost the input signals and provide clearer and stronger output signals.
• Industrial automation: The amplifier module can be used in industrial automation systems such as PLCs or SCADA systems to amplify weak signals from sensors and other devices and provide more accurate and reliable data for decision making.

Package Includes:

• 1 x LM358 Weak Signal Amplifier Voltage Amplifier Secondary Operational

Notes:

• The maximum multiple is 1000 times
• The two potentiometers on the board are rotated counterclockwise to increase the multiple

References:

• https://www.ee-diary.com/2020/11/lm358-audio-amplifier-in-non-inverting.html?m=1
• https://www.hnhcart.com/blogs/learn/lm358-ic-and-its-applications
• https://how2electronics.com/lm358-dual-op-amp-features-pins-working-applications/