4 layers19 × 100 mm
4 layers19 × 100 mm
Maths
xdylanm/opamp-mathA 4HP module for opamp math
- Size
- 19 × 100 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 50
- Nets
- 37
- Pads
- 139
- Tracks, vias
- 209, 28
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 17 Oct 2026
- Updated
- 17 Oct 2026
Overview
Maths is an open-source printed circuit board by xdylanm, from the xdylanm/opamp-math repository on GitHub, published under the MIT licence. It is a 4-layer board of 19 × 100 mm with 50 parts on 37 nets, routed with 209 tracks and 28 vias.
It is built around the TL072, 1N4148W and B140-E3. Its parts include 23 resistors, 10 capacitors, 8 connectors, 4 diodes and 3 ICs.
Main components
3
TL072
SOP-8-18V~18V 0℃~+70℃ 1.4mA 1.5nA 10V/us 10mV 2 2.5nA 3MHz 85dB SOP-8 Operational Amplifier ROHSGcoreOperational Amplifier
1N4148W
SOD-123150mA 1A 1V@50mA 1uA@75V 400mW 4ns 75V Independent SOD-123 Switching Diodes ROHSSTMicroelectronicsSwitching Diodes
B140-E3
SMA(DO-214AC)-65℃~+150℃ 1 Independent 1A 200uA@40V 30A 40V 520mV@1A SMA(DO-214AC) Schottky Diodes ROHSVishay IntertechnologySchottky Diodes
README
README.mdOpAmp Math
A simple module for linear math with opamps.
Parts
50| Qty | Value | Footprint | References |
|---|---|---|---|
| 15 | 100k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R2, R3, R4, R5, R8, R9, R11, R12, R13, R14, R15, R16, R18, R20 |
| 8 | 100n | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C2, C3, C4, C5, C6, C7, C8 |
| 5 | 1k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R6, R7, R10, R17, R21 |
| 2 | 10u | Capacitor_THT:CP_Radial_D5.0mm_P2.00mm | C9, C10 |
| 2 | 1M | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R22, R23 |
| 2 | 1N4148W | Diode_SMD:D_SOD-123 | D3, D4 |
| 2 | B140-E3 | Diode_SMD:D_SMA | D1, D2 |
| 2 | FerriteBead_Small | Inductor_SMD:L_0805_2012Metric_Pad1.05x1.20mm_HandSolder | FB1, FB2 |
| 2 | TL072 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U1, U2 |
| 1 | -(A+B) | AudioJacks:Jack_3.5mm_QingPu_WQP-PJ301M-12_Vertical_Slim | J5 |
| 1 | -A | AudioJacks:Jack_3.5mm_QingPu_WQP-PJ301M-12_Vertical_Slim | J6 |
| 1 | 49.9k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R19 |
| 1 | A | AudioJacks:Jack_3.5mm_QingPu_WQP-PJ301M-12_Vertical_Slim | J2 |
| 1 | A+B | AudioJacks:Jack_3.5mm_QingPu_WQP-PJ301M-12_Vertical_Slim | J4 |
| 1 | A-B | AudioJacks:Jack_3.5mm_QingPu_WQP-PJ301M-12_Vertical_Slim | J7 |
| 1 | B | AudioJacks:Jack_3.5mm_QingPu_WQP-PJ301M-12_Vertical_Slim | J3 |
| 1 | Conn_02x05_Odd_Even | Connector_IDC:IDC-Header_2x05_P2.54mm_Vertical | J1 |
| 1 | TL074 | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U3 |
| 1 | |A-B| | AudioJacks:Jack_3.5mm_QingPu_WQP-PJ301M-12_Vertical_Slim | J8 |
Questions
How big is the Maths PCB?
It measures 19 × 100 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Maths use?
50 parts, built around the TL072, 1N4148W and B140-E3. 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 Maths KiCad files?
From the xdylanm/opamp-math repository on GitHub, at the commit this page was made from: the board is hardware/maths/maths.kicad_pcb and its schematic hardware/maths/maths.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Maths design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
Similar boards
- 4 layers19 × 100 mm
- 16 layers39.6 × 110.9 mm
- 4 layers38.5 × 100 mm
- 2 layers102.9 × 99.1 mm
- 4 layers100 × 84 mm
- 2 layers42.8 × 50.5 mm
- 2 layers109.4 × 108.5 mm
