7 open source boards using the OPA140
Real designs built with the OPA140, from public GitHub projects: a quick way to see how others power, decouple and connect it. Each board comes with its KiCad files, full parts list and a render — and you can simulate its firmware on HardLabs.
AVR/ArduinoSmu main 1
jaromir-sukuba
130 × 80 mm206 parts2LNo license188
FDA-A-v1
macaba
45.5 × 18 mm52 parts4LMIT94
1fNoiseAmplifierRev13
curtisseizert
140 × 100 mm375 parts6LMIT35
STM32A1 - Analogue Board
DumberThanUsual
309.1 × 225.1 mm273 parts2LNo license1
LPF-A-v1
32 × 20 mm36 parts6LMIT94
STM32DSMU A1
172.8 × 214.7 mm272 parts2LNo license1
RefPhotoDiode MDversion1.3
LeonAbelmann
33.4 × 33.4 mm14 parts2LMIT1
The OPA140 in open source designs
The gallery holds 7 open source boards using the OPA140 from 5 GitHub repositories; a typical one measures about 130 × 80 mm and carries around 206 components.
57% are two-layer designs, the rest use four layers or more, and 57% carry an open source license.
The most starred is Smu main 1 by jaromir-sukuba.
Parts used alongside the OPA140
Microcontrollers on boards using the OPA140
What boards using the OPA140 are built for
OPA140: common questions
Where can I find a OPA140 reference design?
Each of the 7 boards on this page is a real design using the OPA140. Open one to see how it is wired up, with the full BOM, a render of the layout and links to its KiCad files.
What parts are used alongside the OPA140?
The ISO7341c, LM393, TL071 and TLP170D appear in the most repositories here.
Which microcontrollers do boards using the OPA140 use?
Most are built on STM32 (2) and AVR/Arduino (1).
How big is a typical board using the OPA140?
The median is 130 × 80 mm, and 57% are two-layer designs.
What is the most popular open source board using the OPA140?
By GitHub stars, Smu main 1 by jaromir-sukuba, with 188 stars.
Can I simulate one of these boards using the OPA140 before building it?
Yes. HardLabs turns a board's netlist and BOM into a working simulation, so you can boot and test firmware against it with no hardware on your desk.