The MAX4466 Electret Microphone Amplifier with Adjustable Gain Module comes fully assembled and tested, featuring a 20-20KHz electret microphone soldered onto the board. It utilizes the Maxim MAX4466, an op-amp tailored for this sensitive task, boasting excellent power supply noise rejection. This results in a high-quality sound that is significantly less noisy and scratchy compared to other microphone amplifier breakouts.
Ideal for projects involving voice changes, audio recording/sampling, and audio-reactive applications that utilize FFT, the module includes a small trimmer pot on the back for gain adjustment. The gain can be set anywhere from 25x to 125x.
For normal speaking volumes approximately 6 inches away, the output is around 200mVpp, which is suitable for devices expecting line level input without clipping. It can also reach up to about 1Vpp, perfect for interfacing with a microcontroller ADC. Additionally, the output is rail-to-rail, allowing for a maximum output of up to 5Vpp when the sound levels are high.
How to Use
Connect GND to ground, VCC to 2.4-5VDC.
The audio waveform will come out of the OUT pin. The output will have a DC bias of VCC/2 so when it’s perfectly quiet; the voltage will be a steady VCC/2 volt (DC couple).
If the audio equipment you’re using requires AC coupled audio; place a 100uF capacitor between the output pin and the input of your device.
If you’re connecting to an audio amplifier that has differential inputs or includes decoupling capacitors; the 100uF cap is dont require.
The output pin is not designed to drive speakers or anything but the smallest in-ear headphones- you’ll need an audio amplifier (such as 3.7W stereo amp)
If you want to connect the amp directly to speakers. If you’re connecting to a microcontroller pin, you don’t need an amplifier or decoupling capacitor; connect the OUT pin directly to the microcontroller ADC pin.
For audio-reactive projects; we suggest using an FFT driver library which can take the audio input and translate it into frequencies.
Features
+2.4V to +5.5V Supply Voltage Operation.
Versions with 5nA Complete Shutdown Available (MAX4467/MAX4468).
Excellent Power-Supply Rejection Ratio: 112dB.
Excellent Common-Mode Rejection Ratio: 126dB.
High AVOL: 125dB (RL = 100k).
Rail-to-Rail Outputs.
Low 24A Quiescent Supply Current.
Gain Bandwidth Product:
200kHz (MAX4465/MAX4467/MAX4469)
600kHz AV 5 (MAX4466/MAX4468)
Available in Space-Saving Packages
5-Pin SC70 (MAX4465/MAX4466)
8-Pin SOT23 (MAX4467/MAX4468/MAX4469)
Specifications:
Input Current (µA)
24
Gain Bandwidth Product (KHz)
600
Phase Margin (Degrees)
70
Gain Margin (dB)
20
Dimensions (mm)
20 x 13.5x 6
Package Includes:
1 xMAX4466 Electret Microphone Amplifier with Adjustable Gain Module.
The MAX4466 Electret Microphone Amplifier with Adjustable Gain Module is a versatile audio amplifier module used across a wide range of applications including electronics projects, DIY builds, prototyping, and educational experiments.
Common use cases:
Integrating into a custom electronics project
Learning and experimenting with circuits
Replacing or upgrading components in existing setups
This product is ideal for electronics enthusiasts, engineers, and students.
Technical Tip: Always verify voltage and current requirements before connecting to your circuit. Check datasheets for detailed specifications and pin configurations.
Shipping & Delivery
Free shipping on orders above ₹999 across India
Dispatched within 1-3 business days
Expected delivery: 3-7 business days depending on location
Secure packaging to ensure safe transit of electronic components
Weight
0.0 kg
Dimensions
3 × 3 × 2 cm
15 Days Warranty
Please note that this item is only covered by a standard supplier warranty against manufacturing defects for a period of 15days from the time of delivery. It is important to understand that only manufacturing defects are covered under this warranty, and any other issues will not be considered for reimbursement or replacement. We strongly advise inspecting the product upon delivery to ensure it meets your expectations. In case of any manufacturing defects, we guarantee reimbursement or replacement.
What voids warranty:
If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.
Karan Patil (verified owner) –
Perfect MAX4466 Electret Microphone Amplifier with Adjustable for prototyping and production. Consistent quality.
Priya Kohli (verified owner) –
Outstanding quality! This MAX4466 Electret Microphone Amplifier with Adjustable is well sorted and labeled. Very convenient.
Sahil Sharma (verified owner) –
Love this MAX4466 Electret Microphone Amplifier with Adjustable. Great variety and all components are genuine. Highly recommended.
Naveen Kohli (verified owner) –
Outstanding quality! This MAX4466 Electret Microphone Amplifier with Adjustable is well sorted and labeled. Very convenient.
Vikram Tiwari –
Good MAX4466 Electret Microphone Amplifier with Adjustable. Quality is reliable. Packaging keeps components organized.
Nitin Thakur (verified owner) –
Very satisfied. My college lab is stocked with these. Excellent value from Zbotic.
Jatin Patel (verified owner) –
Decent MAX4466 Electret Microphone Amplifier with Adjustable. Works well. Some tolerance variation but within acceptable limits.
Pallavi Kumar (verified owner) –
Outstanding quality! This MAX4466 Electret Microphone Amplifier with Adjustable is well sorted and labeled. Very convenient.
Swati Solanki (verified owner) –
Great quality MAX4466 Electret Microphone Amplifier with Adjustable. All values are within tolerance. Very reliable.
Naman Khurana (verified owner) –
Average MAX4466 Electret Microphone Amplifier with Adjustable. Most are good quality but found a few out-of-spec pieces.
Sumit Khurana (verified owner) –
Decent MAX4466 Electret Microphone Amplifier with Adjustable. Works well. Some tolerance variation but within acceptable limits.
Akshat Rajan (verified owner) –
Great quality MAX4466 Electret Microphone Amplifier with Adjustable. All values are within tolerance. Very reliable.
Rahul Deshpande (verified owner) –
Average MAX4466 Electret Microphone Amplifier with Adjustable. Most are good quality but found a few out-of-spec pieces.
Parth Nayak (verified owner) –
Nice MAX4466 Electret Microphone Amplifier with Adjustable. Values are accurate. Good assortment for hobby projects.
Sachin Mittal (verified owner) –
This MAX4466 Electret Microphone Amplifier with Adjustable is essential for any electronics lab. Good quality components.
Gauri Chatterjee (verified owner) –
Perfect MAX4466 Electret Microphone Amplifier with Adjustable for prototyping and production. Consistent quality.
Jai Reddy (verified owner) –
Good MAX4466 Electret Microphone Amplifier with Adjustable. Quality is reliable. Packaging keeps components organized.
Uday Naidu (verified owner) –
Great quality MAX4466 Electret Microphone Amplifier with Adjustable. All values are within tolerance. Very reliable.
Pooja Shah (verified owner) –
Superb MAX4466 Electret Microphone Amplifier with Adjustable! Using these in all my circuit designs. Never had a failure.
Lalit Ghosh –
Good MAX4466 Electret Microphone Amplifier with Adjustable. Quality is reliable. Packaging keeps components organized.
Gaurav Solanki (verified owner) –
Decent MAX4466 Electret Microphone Amplifier with Adjustable. Works well. Some tolerance variation but within acceptable limits.