Arithmetic
About the Arithmetic PCB
Arithmetic is an open source PCB design by bodokaiser, published on GitHub. It is a 2-layer board measuring 49.5 × 48.8 mm, with 59 components from 18 distinct parts.
Other key parts include the LM317, LM337 and OPA197xD. By type, the board carries 24 resistors, 18 capacitors, 6 connectors, 6 diodes and 5 ICs.
From the project
Position-sensitive detector with spatial resolution < 2.5 um.
Position-sensitive detector using the Hamamatsu S5991-01 position-sensitive photodiode.
Main components on the Arithmetic
Arithmetic bill of materials (BOM)
59 components, 18 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | LM317 | SOT-223-3_TabPin2 | U1 |
| 1 | LM337 | SOT-223-3_TabPin2 | U2 |
| 3 | OPA197xD | SOIC-8_3.9x4.9mm_P1.27mm | U3, U4, U5 |
| 1 | Conn_01x03_Male | FanPinHeader_1x03_P2.54mm_Vertical | J1 |
| 2 | Conn_01x05_Male | PinHeader_1x05_P2.54mm_Vertical | J2, J3 |
| 3 | Conn_Coaxial | SMA_Molex_73251-2120_EdgeMount | J4, J5, J6 |
| 4 | 1N4148 | D_SOD-123 | D1, D2, D3, D4 |
| 2 | LED | LED_0603_1608Metric | D5, D6 |
| 8 | 100n | C_0603_1608Metric | C1, C2, C11, C12, C15, C16, C17, C18 |
| 2 | 10u | C_1210_3225Metric | C3, C4 |
| 2 | 22u | C_1210_3225Metric | C5, C6 |
| 6 | 5p | C_0603_1608Metric | C7, C8, C9, C10, C13, C14 |
| 2 | 240 | R_1210_3225Metric | R1, R4 |
| 2 | 2.2k | R_1210_3225Metric | R2, R3 |
| 1 | 510 | R_1210_3225Metric | R5 |
| 17 | 10k | R_0603_1608Metric | R6, R7, R8, R9, R10, R12, R13, R14 +9 |
| 1 | 470 | R_1210_3225Metric | R11 |
| 1 | 2k | R_0603_1608Metric | R23 |
Arithmetic design files
The KiCad project lives in the bodokaiser/position-sensitive-detector repository on GitHub; these links point at the commit this page was built from.
- Layoutkicad/arithmetic.kicad_pcb
- BOMBOM.xlsx
Arithmetic: common questions
How big is the Arithmetic PCB?
The Arithmetic measures 49.5 × 48.8 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Arithmetic?
59 components, from 18 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Arithmetic design files?
From the bodokaiser/position-sensitive-detector repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the Arithmetic design in my own project?
The repository has no license, so all rights stay with bodokaiser. Use it as a reference, and ask the author before reusing the design.
