4 layers101.8 × 63.3 mm
2 layers142.8 × 120.9 mm
Merge stage PCB
JavQuiroga/Spectrometer-Design-by-Artificial-intelligence- Size
- 142.8 × 120.9 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 67
- Nets
- 81
- Pads
- 257
- Tracks, vias
- 787, 7
- Pours
- 60
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 4 Mar 2026
- Updated
- 1 Sep 2026
Overview
Merge stage PCB is an open-source printed circuit board by JavQuiroga, from the JavQuiroga/Spectrometer-Design-by-Artificial-intelligence repository on GitHub. It is a 2-layer board of 142.8 × 120.9 mm with 67 parts on 81 nets, routed with 787 tracks and 7 vias.
It is built around the OPA4191ID, ADS7953SDB and PGA103U, with the LM1117MP-2.5, LM1117MP-3.3 and 3362P-1-104LF among its other parts. Its parts include 23 capacitors, 18 connectors, 6 ICs, 4 resistors and 4 diodes.
Main components
10
OPA4191ID
SOIC-14-18V~-2.25V、2.25V~18V -40℃~+125℃ 100nV/℃ 140dB 140uA 15nV/√Hz@1kHz 2.5MHz 20pA 4 4.5V~36V 5V/us 5pA 5uV 65mA EMI filtering/RF suppression Rail-to-Rail Input, Rail-to-Rail Output SOIC-14 Precision Op Amps ROHSTexas InstrumentsPrecision Op Amps
ADS7953SDB
TSSOP-38-40℃~+125℃ 12 16 1LSB 1MHz 1uA 2.7V~5.25V 20MHz 71.7dB Multiplexers No SAR Serial port TSSOP-38 Analog to Digital Converters (ADC) ROHSTexas InstrumentsAnalog To Digital Converters (ADC)
PGA103U
SO-8-18V~-4.5V、4.5V~18V -40℃~+85℃ 1 100uV/℃ 11nV/√Hz@1kHz 2.6mA 200uV 25mA 50nA 50nA 6V/us SO-8 Operational Amplifier ROHSTexas InstrumentsOperational Amplifier
LM1117MP-2.5
SOT-2230℃~+125℃@(Tj) 1 1.25V@(800mA) 15V 2.5V 5mA 75dB@(120Hz) 75uVrms 800mA Fixed Over Current Protection、Over Temperature Protection Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsLM1117MP-3.3
SOT-2230℃~+125℃@(Ta) 1 1.2V@(800mA) 15V 3.3V 5mA 75dB@(120Hz) 800mA 99uVrms Fixed Over Current Protection、Over Temperature Protection Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
3362P-1-104LF
插件-3P,7x6.8mm1 100kΩ 500mW ±10% ±150ppm/℃ 插件-3P,7x6.8mm Potentiometers, Variable Resistors ROHSjieerruiPotentiometers & Variable Resistors
12102C104KAT2A
1210100nF 200V X7R ±10% 1210 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSKyocera AVXMultilayer Ceramic Capacitors MLCC - SMD/SMT
RMCF1210JT10K0
1210-55℃~+155℃ 10kΩ 333mW Thick Film Resistor ±200ppm/℃ ±5% 1210 Chip Resistor - Surface Mount ROHSStackpole Electronics (SEI)Chip Resistor - Surface Mount
CC0402BRNPO9BN4R7
04024.7pF 50V NP0 0402 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSYAGEOMultilayer Ceramic Capacitors MLCC - SMD/SMT
218-2LPSTRF
SMD,P=1.27mm-55℃~+85℃ 1.27mm 2 24V 25mA Black SPST Slide, Recessed SMD,P=1.27mm DIP Switches ROHSCTS Electronic ComponentsDIP Switches
Parts
67| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | 10uF | Capacitor_SMD:C_0805_2012Metric | C10, C16, C17, C18, C19, C20, C21, C22, C23 |
| 5 | 3362P-1-104LF | footprints:TRIM_3362P-1-104LF | VR1, VR2, VR3, VR4, VR5 |
| 5 | Conn_01x03_Pin | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J12, J20, J21, J23, J24 |
| 4 | 12102C104KAT2A | Capacitor_SMD:C_1210_3225Metric | C3, C5, C9, C13 |
| 4 | Conn_01x02_Pin | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J1, J2, J3, J4 |
| 4 | Conn_01x02_Pin | Connector_PinHeader_2.00mm:PinHeader_1x02_P2.00mm_Vertical | D1, D2, D3, D4 |
| 4 | RMCF1210JT10K0 | Resistor_SMD:R_1210_3225Metric | R1, R2, R3, R4 |
| 3 | CC0402BRNPO9BN4R7 | Capacitor_SMD:C_0402_1005Metric | C4, C7, C15 |
| 3 | Conn_01x04_Pin | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J7, J11, J14 |
| 3 | Conn_01x05_Pin | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J9, J10, J22 |
| 2 | 100nF | Capacitor_SMD:C_1210_3225Metric | C6, C8 |
| 2 | 100nF | Capacitor_SMD:C_0805_2012Metric | C12, C14 |
| 2 | 10k | Resistor_SMD:R_1210_3225Metric | RP1, RP2 |
| 2 | 1k | Resistor_SMD:R_1210_3225Metric | Rf1, Rg1 |
| 2 | C0603C104K5RACTU | Capacitor_SMD:C_0603_1608Metric | C1, C2 |
| 2 | Conn_01x08 | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical | J5, J6 |
| 2 | LM1117MP-2.5 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U5, U7 |
| 2 | LM1117MP-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U4, U6 |
| 1 | 218-2LPSTRF | footprints:SW_218-2LPSTRF | SW1 |
| 1 | ADS7953 | footprints:ADS7953 | U3 |
| 1 | CC0402BRNPO9BN4R7 | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C11 |
| 1 | Conn_01x12_Pin | Connector_PinHeader_2.54mm:PinHeader_1x12_P2.54mm_Vertical | J8 |
| 1 | OPA4191ID | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U1 |
| 1 | OPA4191IDR | footprints:SOIC127P600X175-14N | AMP ANALOG CONTROL |
| 1 | PGA103U | footprints:SOIC127P599X175-8N | PGA103 |
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Questions
How big is the Merge stage PCB PCB?
It measures 142.8 × 120.9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Merge stage PCB use?
67 parts, built around the OPA4191ID, ADS7953SDB, PGA103U and LM1117MP-2.5. 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 Merge stage PCB KiCad files?
From the JavQuiroga/Spectrometer-Design-by-Artificial-intelligence repository on GitHub, at the commit this page was made from: the board is Merge_stage_PCB/Merge_stage_PCB.kicad_pcb and its schematic Merge_stage_PCB/ADS_MUX.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Merge stage PCB design in my own project?
Its repository states no licence, so its author keeps all rights: ask JavQuiroga before reusing the design.