The MAX40018 dual operational amplifiers, from Maxim Integrated, consume only 400nA supply current per channel. This makes these devices, based on the company’s nanoPower technology, highly suitable for portable battery-powered and wearable applications. Each operates from a single 1.7V to 5.5V supply and is powered by the same 1.8V, 2.5V, or 3.3V nominal supply as the system microcontroller. These op-amps feature rail-to-rail outputs and are unity-gain stable with a 9kHz gain bandwidth product. They are housed in 1.63mm x 0.91mm x 0.5mm WLP-8 packages with a 0.4mm pump pitch. An operational temperature range of -40°C to +125°C is supported.