2 layers
2 layers
STM MINE
Ceenzr/StusTMScanning Tunneling Microscope - StusTM
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 14
- Nets
- 95
- Pads
- 124
- Tracks, vias
- 0, 0
- Routed
- Not yet
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 14 Jul 2025
- Updated
- 16 Aug 2025
Overview
STM MINE is an open-source printed circuit board by Ceenzr, from the Ceenzr/StusTM repository on GitHub. It is a 2-layer board with 14 parts on 95 nets.
It is built around the OPA2227UAG4, OPA1612AIDRGR and OPA227U, with the OPA627AU and REF5040AID among its other parts. Its parts include 8 ICs and 6 capacitors.
Main components
5
OPA2227UAG4
SOIC-8-18V~-2.5V、2.5V~18V -40℃~+85℃ 100nV/℃ 10nA 10nA 138dB 2 2.3V/us 2.5V~18V 3.7mA 36V 3nV/√Hz@1kHz 45mA 75uV 8MHz SOIC-8 Operational Amplifier ROHSTexas InstrumentsOperational Amplifier
OPA1612AIDRGR
SON-8-EP(3x3)-18V~-2.25V、2.25V~18V -40℃~+85℃ 0.000015% 2-Channel 3.6mA SON-8-EP(3x3) Precision Op Amps ROHSTexas InstrumentsAudio Amplifiers
OPA227U
SOIC-8-18V~18V -2.5V~3.7V -40℃~+85℃ 10nA 138dB 2 2.3V/us 3.5nV/√Hz@10Hz 600nV/℃ 75uV Built-in compensation SOIC-8 Precision Op Amps ROHSTexas InstrumentsOperational AmplifierOPA627AU
SOIC-8-18V~-4.5V、4.5V~18V -25℃~+85℃ 1 10pA 10pA 110dB 16MHz 2.5uV/℃ 280uV 45mA 4nV/√Hz@1kHz 55V/us 7.5mA 9V~36V Built-in compensation SOIC-8 Precision Op Amps ROHSTexas InstrumentsPrecision Op AmpsREF5040AID
SOIC-8-40℃~+125℃@(Ta) 1.2mA 10mA 12uVp-p 4.096V 4.296V~18V 8ppm/℃ Fixed Series ±0.1% SOIC-8 Voltage Reference ROHSTexas InstrumentsVoltage Reference
README
README.mdStusTM
Scanning Tunneling Microscope - StusTM
Parts
14| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | 1uF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C14, C45, C46 |
| 2 | 10uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C12, C13 |
| 2 | OPA2227UAG4 | OPA2227UAG4:SOIC127P599X175-8N | U9, U10 |
| 1 | 10pF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C16 |
| 1 | ADS8681IPWR | ADS8681IPWR:SOP65P640X120-16N | U7 |
| 1 | DAC7734EB | DAC7734:DL48 | U3 |
| 1 | OPA1612AIDR | OPA1612AIDR:SOIC127P599X175-8N | U6 |
| 1 | OPA227U | OPA227U:SOIC127P599X175-8N | U11 |
| 1 | OPA627AU | OPA627AU:SOIC127P599X175-8N | U5 |
| 1 | REF5040AID | REF5040AID:SOIC127P599X175-8N | U1 |
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Questions
What parts does the STM MINE use?
14 parts, built around the OPA2227UAG4, OPA1612AIDRGR, OPA227U and OPA627AU. 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 STM MINE KiCad files?
From the Ceenzr/StusTM repository on GitHub, at the commit this page was made from: the board is Circuit/STM_MINE.kicad_pcb and its schematic Circuit/ADC.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the STM MINE design in my own project?
Its repository states no licence, so its author keeps all rights: ask Ceenzr before reusing the design.