XD-21 LM358 Amplifier Module 100x Gain Operational Amplifier

100x Signal Voltage Amplification: Built with an LM358 operational amplifier circuit configured for a fixed 100 x voltage gain, boosting micro-volt and milli-volt sensor signals for microcontroller ADCs.

Onboard Gain Trimming Adjustment: Features an integrated multi-turn potentiometer that allows fine-tuning of the signal output amplification factor to suit custom telemetry inputs.

Integrated Power LED Indicator: Equipped with a onboard power status LED to provide immediate visual confirmation of 5V - 12V supply rail activation.

Dual-Channel Op-Amp Core: Utilizes the industry-standard LM358 IC containing two independent, high-gain frequency-compensated operational amplifiers.

Compact 4-Pin Header Interface: Features standard 0.1'' (2.54 mm) header pins for VCC, GND, IN, and OUT, enabling seamless breadboard and jumper wire connections.

Housing & Board Material: High-grade FR-4 glass-epoxy PCB with a DIP-8 LM358 operational amplifier chip, blue potentiometer, and tinned header pins.

Technical Specifications:

Operating Supply Voltage: 5.0V - 12.0V DC.

Default Gain Factor: 100 x (adjustable via onboard trimmer).

Color: Blue PCB with Blue Potentiometer and Black IC DIP Chip.

Usage Advice: Supply 5V-12V DC to VCC and GND pins; route weak analog signals (e.g., electret microphones, piezo transducers, strain gauges) to IN, and read amplified output from OUT on your ADC pin.

Maintenance: Keep header pins and IC leads free from solder bridge residue; ensure the board is operated within dry, non-condensing environments.

Essential Weak Signal Amplifier: Position as a crucial pre-amplifier board for weak acoustic sensors, piezoelectric transducers, strain gauges, and analog audio pre-conditioning networks.

Highlight Plug-and-Play Analog Boosting: Emphasize how integrating onboard gain conditioning saves developers from building complex discrete op-amp resistor networks on breadboards.

Recommended Cross-Sell Add-ons: Pair with Microphone Sound Sensor Module, 6.35mm Pickup Piezo Transducer Contact Mic, 65dB Microphone Module, and ESD antistatic mat 50x40CM PCB Welding Mat.

Featured Collection Star: Display prominently on your Sound Sensor Modules collection page as your go-to general-purpose operational amplifier breakout board.