6 layers
2 layers46 × 17 mm
- Size
- 46 × 17 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 49
- Nets
- 29
- Pads
- 130
- Tracks, vias
- 609, 29
- Pours
- 8
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 28 Feb 2026
- Updated
- 6 Apr 2026
Overview
OPAMP is an open-source printed circuit board by llLeo306, from the llLeo306/MicroCoil_AFE repository on GitHub. It is a 2-layer board of 46 × 17 mm with 49 parts on 29 nets, routed with 609 tracks and 29 vias.
It is built around the OPA2197QDGKRQ1, ADG704BRMZ-REEL and REF2030AIDDCR, with the GH125-S02CCA-00, PESD5V0X1BL-N and DSHP02TSGET among its other parts. Its parts include 20 resistors, 18 capacitors, 4 ICs, 3 connectors and 2 diodes.
Main components
7
OPA2197QDGKRQ1
VSSOP-8-18V~-2.25V、2.25V~18V -40℃~+125℃ 10MHz 140dB 1mA 2 20V/us 25uV 2pA 4.5V~36V 5.5nV/√Hz@1kHz 500nV/℃ 5pA 65mA EMI filtering/RF suppression Rail-to-Rail Input, Rail-to-Rail Output VSSOP-8 Precision Op Amps ROHSTexas InstrumentsPrecision Op Amps
ADG704BRMZ-REEL
MSOP-10-40℃~+85℃ 1 1.8V~5.5V 13ns 200MHz 20ns 4.5Ω 4:1 54pF MSOP-10 Analog Switches, Multiplexers ROHSAnalog DevicesAnalog Switches, Multiplexers
REF2030AIDDCR
SOT-23-5-40℃~+125℃@(Ta) 12ppmp-p 20mA 3.02V~5.5V 460uA 8ppm/℃ Fixed Series ±0.05% SOT-23-5 Voltage Reference ROHSTexas InstrumentsVoltage Reference
GH125-S02CCA-00
SMD,P=1.25mm-25℃~+85℃ 1 1.25mm 1A 1x2P 2 2P 4.05mm 4.25mm 5.8mm 50V Beige GH LCP Phosphor bronze Surface Mount,Vertical Tin UL94V-0 SMD,P=1.25mm Wire To Board Connector ROHSJUSHUOWire To Board Connector
PESD5V0X1BL-N
DFN1006-20.7pF 1 100nA 120W@8/20us 20V 5V 7A@8/20us Bidirectional ESD IEC 61000-4-2 DFN1006-2 ESD and Surge Protection (TVS/ESD) ROHSBORNESD And Surge Protection (TVS/ESD)
DSHP02TSGET
SMD,P=1.27mm-40℃~+85℃ 1.27mm 2 3,000 Cycles Black SPST Slide, Recessed SMD,P=1.27mm DIP Switches ROHSDongGuan KINGTEK Industrial Co.,LTDDIP Switches
GH125-S03DCA-00
SMD,P=1.25mm,卧贴-25℃~+85℃ 1 1.25mm 1A 1x3P 3 3P 4.05mm 4.25mm 50V 7.05mm Beige GH LCP Phosphor bronze Surface Mount, Right Angle Tin UL94V-0 SMD,P=1.25mm,卧贴 Wire To Board Connector ROHSJUSHUOWire To Board Connector
Parts
49| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 100K | Capacitor_SMD:C_0603_1608Metric | R5, R10, R11, R12, R13 |
| 5 | 100nF | Capacitor_SMD:C_0603_1608Metric | C4, C6, C8, C10, C16 |
| 4 | 10uF | Capacitor_SMD:C_0603_1608Metric | C5, C7, C9, C15 |
| 3 | 0 | Capacitor_SMD:C_0603_1608Metric | R3, R4, R17 |
| 3 | 1uF | Capacitor_SMD:C_0603_1608Metric | C13, C17, C18 |
| 3 | 49.9 | Capacitor_SMD:C_0603_1608Metric | R1, R2, R9 |
| 2 | 100 | Capacitor_SMD:C_0603_1608Metric | R19, R20 |
| 2 | 100pF | Capacitor_SMD:C_0603_1608Metric | C2, C3 |
| 2 | 4.7nF | Capacitor_SMD:C_0603_1608Metric | C1, C14 |
| 2 | GH125-S02CCA-00 | kicad_api_lib:GH125-S02CCA-00 | J1, J4 |
| 2 | PESD5V0X1BL-N | kicad_api_lib:PESD5V0X1BL-N | D1, D2 |
| 1 | 10K | Capacitor_SMD:C_0603_1608Metric | R16 |
| 1 | 1K | Capacitor_SMD:C_0603_1608Metric | R15 |
| 1 | 28.7K | Capacitor_SMD:C_0603_1608Metric | R18 |
| 1 | 4.7uF | Capacitor_SMD:C_0603_1608Metric | C11 |
| 1 | 47nF | Capacitor_SMD:C_0603_1608Metric | C12 |
| 1 | 49.9K | Capacitor_SMD:C_0603_1608Metric | R6 |
| 1 | 499 | Capacitor_SMD:C_0603_1608Metric | R8 |
| 1 | 5.49K | Capacitor_SMD:C_0603_1608Metric | R7 |
| 1 | 68K | Capacitor_SMD:C_0603_1608Metric | R14 |
| 1 | AD8421BRZ-RL | kicad_api_lib:AD8421BRZ-RL | U2 |
| 1 | ADG704BRMZ-REEL | kicad_api_lib:ADG704BRMZ-REEL | U1 |
| 1 | BLM18SP102SH1D | kicad_api_lib:BLM18SP102SH1D | FB1 |
| 1 | DSHP02TSGET | kicad_api_lib:DSHP02TSGET | SW1 |
| 1 | GH125-S03DCA-00 | kicad_api_lib:GH125-S03DCA-00 | J3 |
| 1 | OPA2197QDGKRQ1 | kicad_api_lib:OPA2197QDGKRQ1 | U3 |
| 1 | REF2030AIDDCR | kicad_api_lib:REF2030AIDDCR | U4 |
Questions
How big is the OPAMP PCB?
It measures 46 × 17 mm and has 2 copper layers, 1.6 mm thick.
What parts does the OPAMP use?
49 parts, built around the OPA2197QDGKRQ1, ADG704BRMZ-REEL, REF2030AIDDCR and GH125-S02CCA-00. 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 OPAMP KiCad files?
From the llLeo306/MicroCoil_AFE repository on GitHub, at the commit this page was made from: the board is OPAMP.kicad_pcb and its schematic OPAMP.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the OPAMP design in my own project?
Its repository states no licence, so its author keeps all rights: ask llLeo306 before reusing the design.
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