2 layers57.3 × 19 mm
2 layers50 × 20.3 mm
Discrete opamp
visgence/discrete_opampDiscrete Opamp PCB Board
- Size
- 50 × 20.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 26
- Nets
- 19
- Pads
- 60
- Tracks, vias
- 145, 24
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 3
- Created
- 23 Jan 2014
- Updated
- 5 Feb 2014
Overview
Discrete opamp is an open-source printed circuit board by visgence, from the visgence/discrete_opamp repository on GitHub. It is a 2-layer board of 50 × 20.3 mm with 26 parts on 19 nets, routed with 145 tracks and 24 vias.
It is built around the 2SA1873. Its parts include 9 resistors, 7 transistors, 5 diodes and 2 connectors.
Main components
1Parts
26| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 1N4148 | SOD-323 | D1, D2, D3, D4, D5 |
| 3 | 2SA1162S | SOT23_INV | Q4, Q6, Q9 |
| 2 | 10 | SM1206 | R4, R5 |
| 2 | 2.2k | SM0603_VIS | R1, R3 |
| 2 | 4.7k | SM0603_VIS | R6, R8 |
| 2 | pin | 1pin_C | h1, h2 |
| 1 | 180 | SM0603_VIS | R7 |
| 1 | 1k | SM0603_VIS | R9 |
| 1 | 22k | SM0603_VIS | R2 |
| 1 | 2SA1873 | sot323-5 | Q1 |
| 1 | 2SC2712S | SOT23_INV | Q5 |
| 1 | CONN_3 | PIN_ARRAY_3X1 | P2 |
| 1 | FZT653CT | SOT223-BJT | Q8 |
| 1 | FZT753CT | SOT223-BJT | Q7 |
| 1 | LOGO | LOGOMIRROR | G*** |
| 1 | PWR | PIN_ARRAY_2X1 | P1 |
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Questions
How big is the Discrete opamp PCB?
It measures 50 × 20.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Discrete opamp use?
26 parts, built around the 2SA1873. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Discrete opamp KiCad files?
From the visgence/discrete_opamp repository on GitHub, at the commit this page was made from: the board is discrete_opamp.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Discrete opamp design in my own project?
Its repository states no licence, so its author keeps all rights: ask visgence before reusing the design.