LM358 operational ampifier module

LM358 Gain Signal Amplification Operational Amplifier Module which can provide amplification of about 100 times. This can be used very easily as it has header pins that can connect directly to your development board. It is designed to operate from a single power supply over a wide range of voltages. It is used in conventional operational amplifier circuits that need to be operated from a single power rail.

Features:

• Chip: LM358
• Easy to use and reliable
• Adjustable gain up to 100x
• It has an onboard potentiometer for changing the amplification
• It has an onboard power indicator.
• Chip has been drawn out to the main pins for direct input and output of signals

The LM358 operational amplifier module is handy for providing basic waveform amplification in a project such as boosting a signal from a microphone.

The gain has a range of 1x to 100x and is adjustable using the multi-turn potentiometer on the module.  Turning the pot CW lowers the amplification while turning it CCW increases it.

An power LED is included on the module.

EVALUATION RESULTS:

These assemblies work quite well at basic amplification tasks when dealing with moderate frequency signals like microphone inputs.  With a 10mV 1KHz input, we were able to adjust over the full range of 10mV to 1V on the output without significant distortion.

Note that though the LM358 can handle up to 32V.  The LED has a 1K current limiting resistor, so at about 22V, the LED will be driven at its maximum current of 20mA.  The LED can be removed if using the module at higher voltages, or the 1K resistor at R10 can be replaced with something bigger like a 2.2K or 4.7K

Package Includes:

1 x LM358 Gain Signal Amplification Operational Amplifier Module.

LM358 Module Schematics: