
Boards using the OPA2140AID
9 boardsBoards in 7 GitHub repositories, designed in KiCad, that use the OPA2140AID by Texas Instruments (-18V~-2.25V、2.25V~18V -40℃~+125℃ 0.35uV/℃ 1.8mA 10pA 10pA 11MHz 120dB 120uV 2 20V/us 36mA 4.5V~36V 5.1nV/√Hz@1kHz Rail-to-rail output Short-Circuit Protection SOIC-8 FET Input Amplifiers ROHS). See how each wires it, with its parts, size, README and files; the OPA2140AID’s symbol, footprint and pinout are on its own page.
- 4 layers101 × 47 mm

- 4 layers82.8 × 88.9 mm

Metal detector test
bobasaurus/lumber-plunder-metal-detector
A VLF induction balance metal detector with a wooden body
111 parts11GPL-3.0 - 2 layers150 × 53.5 mm

Diy smu
sverrham/diy-smu
DIY Source Measurement Unit, four quadrant powersupply and ?.? digit volt/current meter.
209 parts2 - 2 layers53 × 23 mm

Maam 011109 bias
loxodes/vna
Under development open hardware microwave vector network analyzer
52 parts205 - 6 layers

Vna mm synth
loxodes/vna
Under development open hardware microwave vector network analyzer
435 parts205 - 4 layers50 × 20 mm

RobustEEG AFE
ppolGTMonster/RobustEEG_forUHFMRI
Hardware for an Open Source EEG usable in high magnetic Fields
58 parts1 - 2 layers

- 4 layers160 × 100 mm

- 6 layers83.3 × 61.3 mm
