2 layers57.5 × 57 mm
Myo hub
trupples/thesis
My bachelor's thesis: "Multi-channel biopotential data acquisition system with libiio, ROS 2 bindings"
45 parts1
2 layers53.3 × 27.9 mm
Diff amp
trupples/thesis1My bachelor's thesis: "Multi-channel biopotential data acquisition system with libiio, ROS 2 bindings"
- Size
- 53.3 × 27.9 mm
- Copper layers
- 2
- Thickness
- 1.58 mm
- Parts
- 13
- Nets
- 10
- Pads
- 32
- Tracks, vias
- 31, 0
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 9 Mar 2024
- Updated
- 7 Jul 2025
Overview
Diff amp is an open-source printed circuit board by trupples, from the trupples/thesis repository on GitHub. It is a 2-layer board of 53.3 × 27.9 mm with 13 parts on 10 nets, routed with 31 tracks and 0 vias.
It is built around the AD8226ARZ-R7. Its parts include 5 resistors, 3 capacitors, 3 connectors, 1 IC and 1 transistor. It belongs with the audio and music boards of this library.
Main components
1Parts
13| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | 10k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R1, R2, R5 |
| 2 | 0.1u | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C2, C3 |
| 2 | Conn_01x01_Pin | Connector_Wire:SolderWirePad_1x01_SMD_5x10mm | J2, J3 |
| 1 | 1u | Capacitor_THT:CP_Radial_D4.0mm_P2.00mm | C1 |
| 1 | 2.2k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R3 |
| 1 | 330 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R4 |
| 1 | AD8226ARZ-R7 | Package_DIP:DIP-8_W7.62mm_Socket | U2 |
| 1 | Conn_01x03_Socket | Connector_JST:JST_XH_S3B-XH-A-1_1x03_P2.50mm_Horizontal | J1 |
| 1 | NPN | Package_TO_SOT_THT:TO-92L_Inline_Wide | Q1 |
Questions
How big is the Diff amp PCB?
It measures 53.3 × 27.9 mm and has 2 copper layers, 1.58 mm thick.
What parts does the Diff amp use?
13 parts, built around the AD8226ARZ-R7. 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 Diff amp KiCad files?
From the trupples/thesis repository on GitHub, at the commit this page was made from: the board is hardware/diff-amp/diff-amp.kicad_pcb and its schematic hardware/ad4114-wings/ad4114-wings.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Diff amp design in my own project?
Its repository states no licence, so its author keeps all rights: ask trupples before reusing the design.
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