https://www.adafruit.com/product/808
Op Amp - Dual Rail-to-Rail - 2.7-6V power @ 80mA output [TLV2462] : Adafruit Industries, Unique &...
When you need to amplify, filter, add, or otherwise manipulate analog signals you'll certainly want an operational amplifier at your side. This is our favorite...
https://www.analog.com/en/resources/design-notes/4096v-80ma-precision-reference.html
4.096V, 80mA Precision Reference | Analog Devices
4.096V, 80mA precision reference
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