PCBs
About the PCBs PCB
PCBs is an open source PCB design by jwmke, published on GitHub. It is a 4-layer board measuring 45.5 × 52 mm, with 72 components from 25 distinct parts.
Other key parts include the ADS1299IPAGR, TPD4E1B06DCKR, LM2664M6, TPS61023DRLR and TPS73233DBVT. By type, the board carries 44 capacitors, 14 resistors, 9 ICs, 4 connectors and 1 inductor.
It belongs with the dev boards & breakouts and power & battery designs in this gallery.
From the project
Open Source 8-channel EEG Pi Pico Shield for <$80
The heart of this PCB is a Texas Instrument's ADS1299, a low noise, 8-Channel, Analog-to-Digital Converter.
Main components on the PCBs
PCBs bill of materials (BOM)
72 components, 25 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ADS1299IPAGR | PAG64_TEX | U1 |
| 3 | TPD4E1B06DCKR | tpd4e1b06dckr | U3, U4, U9 |
| 1 | LM2664M6 | lm266 | U5 |
| 1 | TPS61023DRLR | SOTFL50P160X60-6N | U6 |
| 1 | TPS73233DBVT | 73233 | U7 |
| 1 | TPS72325DBVT | 72325 | U8 |
| 1 | TPS73225DBVR | 73225 | U11 |
| 1 | CONN_01X02_PIN Conn_01x02_Pin | JST_PH_B2B-PH-K_1x02_P2.00mm_Vertical | J1 |
| 1 | CONN_01X09_PIN Conn_01x09_Pin | PinHeader_1x09_P2.54mm_Vertical | J2 |
| 2 | CONN_01X20_SOCKET Conn_01x20_Socket | PinSocket_1x20_P2.54mm_Vertical | J3, J4 |
| 1 | 1µH | IND_74438357010_WRE | L1 |
| 1 | 1.5NF 1.5nF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1 |
| 6 | 0.1µF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C2, C6, C8, C11, C15, C16 |
| 4 | 10µF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C3, C18, C19, C22 |
| 9 | 1µF | C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C4, C5, C9, C10, C12, C14, C17, C27 +1 |
| 1 | 1NF 1nF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C7 |
| 1 | 100µF | C_1210_3225Metric_Pad1.33x2.70mm_HandSolder | C13 |
| 3 | 22µF | C_1210_3225Metric_Pad1.33x2.70mm_HandSolder | C20, C21, C24 |
| 3 | 0.01µF | C_0201_0603Metric_Pad0.64x0.40mm_HandSolder | C23, C28, C30 |
| 16 | 1nF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C25, C26, C31, C32, C33, C34, C35, C36 +8 |
Show 5 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 1MΩ | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R1 |
| 7 | 10kΩ | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R2, R3, R6, R7, R8, R9, R10 |
| 1 | 732kΩ | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R4 |
| 1 | 100kΩ | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R5 |
| 4 | CAY16-103J4LF | CAT16A203J4LF | RN5, RN6, RN7, RN8 |
PCBs design files
The KiCad project lives in the jwmke/eeg repository on GitHub; these links point at the commit this page was built from.
- LayoutPCB/PCBs.kicad_pcb
- SchematicPCB/PCBs.kicad_sch
- BOMv2/bom.csv
PCBs: common questions
How big is the PCBs PCB?
The PCBs measures 45.5 × 52 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the PCBs?
72 components, from 25 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 PCBs design files?
From the jwmke/eeg repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the PCBs design in my own project?
The repository has no license, so all rights stay with jwmke. Use it as a reference, and ask the author before reusing the design.
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