Boards in 3 GitHub repositories, designed in KiCad, that use the OPA2197ID by Texas Instruments (-18V~-2.25V、2.25V~18V -40℃~+125℃ 10MHz 120dB 1mA 2 20V/us 25uV 2pA 4.5V~36V 5.5nV/√Hz@1kHz 500nV/℃ 5pA 65mA EMI filtering/RF suppression、Reverse-phase input protection Rail-to-Rail Input, Rail-to-Rail Output SOIC-8 Precision Op Amps ROHS). See how each wires it, with its parts, size, README and files; the OPA2197ID’s symbol, footprint and pinout are on its own page.
TZeng0698/Portable-EEG-with-Modular-Pre-Filtering-for-BCI-Applications
A Low-cost EEG BCI implementation with modular filtering card and ADS1298. The repo contains the PCB files and a guide to design your own(in progress).
ojz/prompted-circuit-boards
Prompt-driven design of Eurorack modules with KiCad 10
gallicchio/AMOD-and-RFMOD
The tutorial's 2x12 adapter (/mudd/133electronics/icepi-zero-dac-adc/adapterboard/) with a 2 x 6 right-angle Pmod socket on a 15 mm extension of its right-hand end, so an Icepi Zero can drive AMOD-A's and RF-MOD's Pmod…