2 layers245.6 × 85.9 mm
2 layers49.7 × 130 mm
Earthboot
microresearch/mycelium5- Size
- 49.7 × 130 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 44
- Nets
- 40
- Pads
- 139
- Tracks, vias
- 335, 30
- Pours
- 5
- Routed
- Yes
- KiCad
- KiCad 5 (file 20170123)
- Created
- 28 Jun 2018
- Updated
- 18 Sep 2022
Overview
Earthboot is an open-source printed circuit board by microresearch, from the microresearch/mycelium repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 49.7 × 130 mm with 44 parts on 40 nets, routed with 335 tracks and 30 vias.
It is built around the AD8606ARZ and ADR423AR. Its parts include 17 resistors, 14 capacitors, 7 ICs and 6 connectors.
Main components
2
AD8606ARZ
SOIC-8-40℃~+125℃ 0.5pA 1.2mA 100dB 10MHz 1pA 2 2.7V~5.5V 4.5uV/℃ 5V/us 80mA 80uV 8nV/√Hz@1kHz ESD protection、Built-in compensation、Overvoltage protection、Reverse-phase input protection Rail-to-Rail Input, Rail-to-Rail Output SOIC-8 Precision Op Amps ROHSAnalog DevicesPrecision Op AmpsADR423AR
SOIC-8-40℃~+125℃ 10mA 10ppm/℃ 2uVp-p 3V 500uA 5V~18V Adjustable Temperature compensation control ±0.13% SOIC-8 Voltage Reference ROHSAnalog DevicesVoltage Reference
Parts
44| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 100n | Capacitors_SMD:C_0805_HandSoldering | C6, C9, C11, C13 |
| 4 | 1uF | Capacitors_Tantalum_SMD:CP_Tantalum_Case-A_EIA-3216-18_Hand | C7, C10, C12, C14 |
| 4 | 47K | Resistors_SMD:R_0805_HandSoldering | R11, R12, R15, R16 |
| 3 | 10K | Resistors_SMD:R_0805_HandSoldering | R1, R2, R10 |
| 3 | OP27 | SMD_Packages:SOIC-8-N | U1, U3, U7 |
| 2 | 100N | Capacitors_SMD:C_0805_HandSoldering | C1, C4 |
| 2 | 10M | Resistors_SMD:R_0805_HandSoldering | R3, R4 |
| 2 | 10n | Capacitors_SMD:C_0805_HandSoldering | C2, C3 |
| 2 | 1K | Resistors_SMD:R_0805_HandSoldering | R5, R8 |
| 2 | 200K | Resistors_SMD:R_0805_HandSoldering | R6, R7 |
| 2 | Conn_01x01 | SMD_Packages:1Pin | J2, J3 |
| 2 | GS2 | Resistors_SMD:R_0805 | J5, J7 |
| 2 | RFB | Resistors_SMD:R_0805_HandSoldering | R13, R17 |
| 1 | 0.47uF | Capacitors_SMD:C_0805_HandSoldering | C5 |
| 1 | 22K | Resistors_SMD:R_0805_HandSoldering | R14 |
| 1 | 390K | Resistors_SMD:R_0805_HandSoldering | R9 |
| 1 | 47n | Capacitors_SMD:C_0805_HandSoldering | C8 |
| 1 | AD5933 | Housings_SSOP:SSOP-16_5.3x6.2mm_Pitch0.65mm | U4 |
| 1 | AD620 | SMD_Packages:SOIC-8-N | U2 |
| 1 | AD8606 | SMD_Packages:SOIC-8-N | U5 |
| 1 | ADR423 | SMD_Packages:SOIC-8-N | U6 |
| 1 | Conn_01x01 | Socket_Strips:Socket_Strip_Straight_1x01_Pitch2.54mm | J1 |
| 1 | Conn_01x06 | Socket_Strips:Socket_Strip_Straight_1x06_Pitch2.54mm | J8 |
Questions
How big is the Earthboot PCB?
It measures 49.7 × 130 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Earthboot use?
44 parts, built around the AD8606ARZ and ADR423AR. 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 Earthboot KiCad files?
From the microresearch/mycelium repository on GitHub, at the commit this page was made from: the board is mycelium_pcb/earthboot/earthboot.kicad_pcb and its schematic small_mycelium/small_mycelium.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Earthboot design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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