Boards in 19 GitHub repositories, designed in KiCad, that use the OPA1678ID by Texas Instruments (-18V~-2.25V、2.25V~18V -40℃~+85℃ 10pA 10pA 110dB 16MHz 2 2mA 2uV/℃ 4.5V~36V 4.5nV/√Hz@1kHz 500uV 50mA 9V/us Built-in compensation、ESD protection Rail-to-rail output SOIC-8-150mil Operational Amplifier ROHS). See how each wires it, with its parts, size, README and files; the OPA1678ID’s symbol, footprint and pinout are on its own page.
ishkabbible/Triple_Attenuverter_Mixer_v2
The TAM is three precision attenuators/attenuverters feeding into a 3-input, non-inverting mixer. The attenuXer sections are fully independent, and the output jacks are normalled to the mixer.
aaravjhamb/openIEMA
A high quality open source In Ear Monitor Amplifier!! (IEMA for short)
Oleg-mk/MOST25-to-AUDIO
Passive MOST25 listener: Tang Nano 20K FPGA, ESP32 host, stereo I2S out with the head unit's volume, balance and tone
KingJacker/BTM308-bluetooth-module-host
This is a carrier board for the BTM308 Bluetooth audio module.
MHeis22/P48ElectretMicPCB
Phantom powered OPA Alice / https://www.ti.com/lit/an/sboa320a/sboa320a.pdf?ts=1773332275188 resembling Electret mic Impedance Converter with balanced out.
starlingcode/analog-via
Designs for an all-analog variant of the VIA meta crossfader
misko/prompt2device
The separate vNext PCB skill and orchestrator package is available alongside the reference workflow below; existing projects keep their accepted toolchain until an explicit migration.
dmsd-lab/AMP8611
AMP8611 - open hardware integrated stereo power amplifier with a 2-channel input selector, PGA2311 digital volume control and LM3886 power stages
KingJacker/BTM308-bluetooth-module-host
This is a carrier board for the BTM308 Bluetooth audio module.