

Hydrophone preamp
phantom powered piezotransducer preamplifier
- Size
- 22 × 37.2 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 34
- Nets
- 12
- Pads
- 72
- Tracks, vias
- 115, 12
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 10 Dec 2024
- Updated
- 10 Dec 2024
Overview
Hydrophone preamp is an open-source printed circuit board by starlingcode, from the starlingcode/piezo-preamp repository on GitHub. It is a 2-layer board of 22 × 37.2 mm with 34 parts on 12 nets, routed with 115 tracks and 12 vias.
It is built around the OPA1642AID. Its parts include 10 capacitors, 10 resistors, 5 connectors, 1 IC and 1 diode. It belongs with the audio and music boards of this library.
Main components
1Parts
34| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 10uF | Capacitor_SMD:C_1206_3216Metric | C1, C2, C6, C7, C8, C9 |
| 4 | 2.2k | Resistor_SMD:R_0603_1608Metric | R2, R3, R6, R7 |
| 3 | Conn_01x01_Female | Connector_Wire:SolderWire-1.5sqmm_1x01_D1.7mm_OD3.9mm | J1, J2, J3 |
| 2 | 0.1uF | Capacitor_SMD:C_0603_1608Metric | C5, C10 |
| 2 | 22uF | Capacitor_SMD:CP_Elec_6.3x3.9 | C3, C4 |
| 2 | 47 | Resistor_SMD:R_0603_1608Metric | R9, R10 |
| 2 | Conn_01x01_Female | Connector_Wire:SolderWire-0.5sqmm_1x01_D0.9mm_OD2.1mm | J6, J7 |
| 1 | 12V | Diode_SMD:D_SOD-323F | D1 |
| 1 | 1M | Resistor_SMD:R_0603_1608Metric | R1 |
| 1 | 200 | Resistor_SMD:R_0603_1608Metric | R8 |
| 1 | 47K | Resistor_SMD:R_0603_1608Metric | R4 |
| 1 | 47k | Resistor_SMD:R_0603_1608Metric | R5 |
| 1 | OPA1642 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U1 |
The 27 most common of 34 parts.
Questions
How big is the Hydrophone preamp PCB?
It measures 22 × 37.2 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Hydrophone preamp use?
34 parts, built around the OPA1642AID. 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 Hydrophone preamp KiCad files?
From the starlingcode/piezo-preamp repository on GitHub, at the commit this page was made from: the board is hydrophone_preamp.kicad_pcb and its schematic hydrophone_preamp.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Hydrophone preamp design in my own project?
Its repository states no licence, so its author keeps all rights: ask starlingcode before reusing the design.
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