Modular Filter
About the Modular Filter PCB
Modular Filter is an open source PCB design by TZeng0698, published on GitHub. It is a 2-layer board measuring 35 × 22.2 mm, with 38 components from 24 distinct parts.
Other key parts include the OPA2237, OPA4170 and INA128. By type, the board carries 17 resistors, 16 capacitors, 3 ICs, 1 connector and 1 diode.
From the project
A Low-cost EEG BCI implementation with modular filtering card and ADS1298. The repo contains the PCB files and a guide to design your own(in progress).
Main components on the Modular Filter
Modular Filter bill of materials (BOM)
38 components, 24 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | OPA2237 | SOIC-8_3.9x4.9mm_P1.27mm | U2 |
| 1 | OPA4170 | SOIC-14_3.9x8.7mm_P1.27mm | U4 |
| 1 | INA128 | SOIC-8_5.3x6.2mm_P1.27mm | U6 |
| 1 | CONN_01X07_PIN Conn_01x07_Pin | PinHeader_1x07_P2.54mm_Horizontal | J1 |
| 1 | LED | LED_0805_2012Metric | D1 |
| 1 | 0.47U 0.47u | C_0805_2012Metric | C1 |
| 2 | 0.1U 10n | C_0805_2012Metric | C3, C4 |
| 1 | 0.22U 10n | C_0805_2012Metric | C6 |
| 1 | 1PF 10n | C_0805_2012Metric | C7 |
| 1 | 33N 33n | C_0805_2012Metric | C8 |
| 8 | 0.1U 0.1u | C_0805_2012Metric | C9, C10, C11, C12, C13, C16, C17, C18 |
| 2 | 1u | C_0805_2012Metric | C14, C15 |
| 1 | 20K 20k | R_0805_2012Metric | R1 |
| 1 | 3.3M | R_0805_2012Metric | R3 |
| 2 | 30K 316k | R_0805_2012Metric | R4, R6 |
| 2 | 350 2k | R_0805_2012Metric | R5, R7 |
| 1 | 10K 158k | R_0805_2012Metric | R8 |
| 1 | 6.7K 0.9k | R_0805_2012Metric | R9 |
| 3 | 10K 10k | R_0805_2012Metric | R10, R16, R17 |
| 1 | 1k | R_0805_2012Metric | R11 |
Show 4 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 100K 100k | R_0805_2012Metric | R12 |
| 1 | 2k | R_0805_2012Metric | R13 |
| 2 | 4.7M | R_0805_2012Metric | R14, R15 |
| 1 | 5k | R_0805_2012Metric | R18 |
Modular Filter design files
The KiCad project lives in the TZeng0698/Portable-EEG-with-Modular-Pre-Filtering-for-BCI-Applications repository on GitHub; these links point at the commit this page was built from.
Modular Filter: common questions
How big is the Modular Filter PCB?
The Modular Filter measures 35 × 22.2 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Modular Filter?
38 components, from 24 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 Modular Filter design files?
From the TZeng0698/Portable-EEG-with-Modular-Pre-Filtering-for-BCI-Applications 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 Modular Filter design in my own project?
The repository has no license, so all rights stay with TZeng0698. Use it as a reference, and ask the author before reusing the design.
