Operational amplifier module, which is based on the LM358 chip. Best for weak signal gain. Technical data Power supply voltage: DC 3.5-24 V Current output: maximum 15-20 mA (non-linear) Voltage output: output = input voltage signal * gain Amplification: Total gain = first step gain * second step gain Dimensions: 45.3x16.2 mm https://elecena.pl/product/22624731/lm358-2-step-dual-operational-amplifier-module 2023-02-23 https://elecena.pl/product/22624731/lm358-2-step-dual-operational-amplifier-module 2025-10-28