
Amplifier
spel-uchile/anemometroSonico
https://code.google.com/p/uch-ultrasonic-anemometer/w/list
Boards in 3 GitHub repositories, designed in KiCad, that use the INA2128U by Texas Instruments (-18V~-2.25V、2.25V~18V -40℃~+85℃ 1% 1.5mA 18mA 1V/V~10000V/V 1nA 2 200kHz 200nV/℃ 25uV 2nA 30pA/℃ 4.5V~36V 4V/us 7us 86dB 8nV/√Hz@1kHz External resistor gain、Overvoltage protection Single-Ended SOIC-16-300mil Instrumentation Amplifiers ROHS). See how each wires it, with its parts, size, README and files; the INA2128U’s symbol, footprint and pinout are on its own page.

spel-uchile/anemometroSonico
https://code.google.com/p/uch-ultrasonic-anemometer/w/list

M-Welsch/base-pcb-power
Backup Server Circuit Board that contains power management and sbu

shomi74/TUCAN_64CH_SHIM_CURRENT_SUPPLY
64-channel modular ultra-stable bipolar current supply system developed for TUCAN neutron EDM shim-coil magnetic-field control using precision mixed-signal feedback architecture and low-noise PCB design.